Sujet: one liste de sujets
nouvelle recherche

548 articles trouvés pour ce sujet.

		Page 1/1

	A=B+C+D+F+G+H+J		2007-11-27
		Boubendir pose la question : voila ma question et comme savoir les nombres additioné en etulisant le resultat A=B+C+D+F+G+H+J au debut ons a les B,C,D,F,G,H,J on connaissent leur valeur comment retrouver valeur on etulisant leur resultat Claude Tardif lui répond.
	volume d'un cône		2006-11-29
		Emmanuel pose la question : On peut diviser un cube en 3 pyramides et ainsi en déduire le volume d'une pyramide. Mais comment peut-on déduire le volume d'un cône de celui d'un cylindre? Comment visualise-t-on la division d'un cylindre en trois? Claude Tardif lui répond.
	l'explication de 1 - 1,1 exposant -5		2006-08-12
		Karin pose la question : Ma question est l'explication de 1 - 1,1 exposant -5 Claude Tardif lui répond.
	Volume d'un cône		2006-04-24
		Christelle pose la question : Caroline décide de se servir de ses connaissances mathématiques pour "rouler" son petit frère: "Arthur, dit-elle, je te propose que nous mettions chaucun un euro dans l'achat d'un cône glacé. Je mangerai la première, jusqu'à mi-hauteur, et toi, tu auras la seconde moitié." Combien la part de Caroline représenterai-elle par rapport à celle de son petit frère s'il acceptait ? Claude Tardif lui répond.
	Exposant		2005-09-06
		Enzo pose la question : Puis-je savoir combien donne 2 exposant 100 ? et 9 exposant 3012 ? Claude Tardif lui répond.
	le système RSA		2005-02-19
		Un eleve pose la question : Je suis actuellement en classe préparatoire MP au lycée Henri Poincaré de Nancy et je souhaiterais obtenir des informations sur l'exponentiation modulaire car je réalise un TIPE sur la cryptographie et plus particulièrement le système RSA. pourriez-vous m'indiquez en quoi consiste l'exponentiation modulaire et comment cela fonctionne. Claude Tardif lui répond.
	Recherhce sur pi et exponentielle		2001-03-17
		Cyril pose la question : étudiant a la fac de sciences de montpellier je cherche des informations concernant la demonstration suivante: "comment prouver que pi et exponentielle sont irrationnels?" Claude Tardif lui répond.
	Exposant à la 0		2000-07-04
		Sylvie pose la question : J'aimerais savoir combien fait 0 exposant 0. Claude Tardif lui répond.
	Le sang humain		1998-10-06
		Golden pose la question : Le sang humain contient approximativement 2,5 x globules rouges. Chaque globule a un rayon de 0,004 mm. Si on le place ces globules bout a bout, quelle est la longeur de la chaine en millimetres? En kilometres? Compare toi avec la circonference de la terre (24 000 km) (Travail avec exposants) Claude Tradif lui répond.
	A pattern for a truncated cone		2013-12-20
		Josh pose la question : I need to know how to layout a truncated cone with a base diameter of 18" a top Diameter 15.25 and a height of 20". Your help will be greatly appreciated. Penny Nom with a spreadsheet by Don lui répond.
	Solving a cone		2008-01-29
		Marija pose la question : [Note: this problem shows how to solve anything about a cone if you are given two measurements.] Is there a formula for finding the diameter of the base of the cone? Stephen La Rocque lui répond.
	Pattern for a truncated cone		2007-05-11
		Mike pose la question : I have been trying to get this cone flat so I can build this column. Can you please help me so I can figure this out? Thanks for your help. Stephen La Rocque lui répond.
	A graph with 100 vertices and one edge		2022-01-11
		Maftuna pose la question : A graph has 100 vertices and only one edge. How many connected components does it have? Penny Nom lui répond.
	UFO speed in MPH from nearest galaxy in one year		2021-05-22
		Joe pose la question : If the next closest galaxy is 15 quadrillion miles away and there are 8760 hours in one year; how fast would a UFO have to fly to travel from the next galaxy, in MPH in one year ? Google calculator gives this result: 1.7123288e+12 I don't understand what the "e+12" means. How is that pronounced, ex. trillion, quadrillion etc..? Harley lui répond.
	The height of a cone		2021-05-13
		Carmen pose la question : If a cone has a slant height of 25 inches and a radius of 7 inches what is the height in inches of the cone? Harley Weston lui répond.
	10^1,000,000		2020-12-18
		G pose la question : Looking for the name of a really big number. its a 1. with a Million zeroes after it. Harley Weston lui répond.
	0^(a+bi)		2020-12-03
		Douglas pose la question : I realize raising 0^a = 0 if a>0 and undefined if a<=0. If have read that 0^bi is undefined for all b. What I don't understand is why 0^(a+bi) = 0 if a and b are not equal to zero. Is this purely by definition or is there a logical reason why this is the case? (I have taken Complex Analysis, so have a fairly good understanding of complex numbers.) Penny Nom lui répond.
	Filling holes with stone dust		2020-07-30
		Zach pose la question : I’m looking for amount of stone dust needed for thirteen holes with a 3ft depth and 12in diameter with a 4x4 post. I would need the measurement in KG. Harley Weston lui répond.
	A sand castle in the shape of a truncated cone		2020-05-23
		Summer pose la question : A sand castle is in the shape of a truncated cone as shown. Calculate the length of the diameter of the base. The diameter of the top of the truncated cone is 20cm The height is 30cm The slopes are 32cm Penny Nom lui répond.
	Maximizing the volume of a cone		2020-05-18
		Ella pose la question : Hello, this is question - 'If you take a circle with a radius of 42cm and cut a sector from it, the remaining shape can be curled around to form a cone. Find the sector angle that produces the maximum volume for the cone made from your circle.' Penny Nom lui répond.
	The volume of a stone		2020-05-02
		KHOSI pose la question : A rectangular container is 9cm wide,17cm long and contains water to a depth of 11cm. A stone is placed in the water and the water rises 2,2cm .Find the volume of the stone Penny Nom lui répond.
	Power notation		2020-04-26
		Aditi pose la question : The power notation of -1 / 128 Penny Nom lui répond.
	The missing diameter of a truncated cone		2020-04-17
		Brandon pose la question : Need a formula to find missing large Dia of a truncated cone where the small dia =.19" Height= 2" and taper =16deg Harley Weston lui répond.
	Six-digit telephone numbers		2020-03-12
		Lulamile pose la question : What is the probability that a six-digit telephone number has no repeated digits? The telephone number cannot begin with a zero Penny Nom lui répond.
	The volume of a coffee cup		2020-01-25
		Amirah pose la question : What is the volume of a polystyrene cup with a height of 8cm, diameter of 5cm at the top and 4cm at the bottom when it is filled with water? Penny Nom lui répond.
	81^5 as a power of 3		2019-12-29
		NA pose la question : How do we turn 81^5 into the power of 3? Harley Weston lui répond.
	Volume of a tree		2019-12-19
		Maria pose la question : I have trees for sale. I need to calculate the volume of a tree from base which is wider than the stem.The base will be used for the making of hurleys, similar to hockey sticks so the wider base is crucial. Penny Nom lui répond.
	Vectors		2019-09-06
		Kayla pose la question : Hi! Due to time constraint issues, we skipped vectors in Pre-Calc last year. However, I'm attempting to complete my AP Physics summer homework and there are 3 problems with vectors. As I explained, I have no idea even where to begin and as such I need some help. Problem 1: A plane flying at 90° at 45 m/s is blown toward 0° at 62 m/s by a strong wind. Find the plane's resultant velocity. I have tried all sorts of online calculators but none are providing me with a formula I can use to solve this problem on my own. Problem 2: If you walk 367 m North and 785 m West what is your total displacement from your original location? What is the problem asking for when it says displacement? Problem 3: A plane travels on a heading of 127.0° at a velocity of 25 km/hr. What are the horizontal and vertical components of the plane's velocity? As you know already, I have never done vectors so I don't know what horizontal and vertical components of velocity are. Thank you So Much for your help!! I am struggling!! - Kayla Penny Nom lui répond.
	Using the Laws of Exponents		2019-09-06
		Samiya pose la question : i have been struggling with the laws of exponents so im having trouble with this question. the question is to write (b*exponent2*c)(b*exponent5*c*exponent4*) Penny Nom lui répond.
	Can one equation with two variables be solved algebraically?		2019-08-30
		Don pose la question : Can one equation with two variables be solved algebraically? Penny Nom lui répond.
	A flat top cone		2019-08-25
		Mary pose la question : I want to make a paper model of a flat top cone with the radius of the base is 12.5 cm and the radius of the apex is 7 cm.The height is 15 cm and the radius of the apex is 5 cm. The height is 15 cm. Can you help me with the angle and construction, please? Thanks. Penny Nom lui répond.
	A cone of maximum volume		2019-08-14
		Refilwe pose la question : The slant height of a cone is 10cm. Determine the radius of the base so that the volume of the cone is a maximum Penny Nom lui répond.
	The maximum volume of a cone		2019-07-14
		A student pose la question : find the maximum volume of a cone if the sum of it height and volume is 10 cm. Penny Nom lui répond.
	One part in 10^x		2019-06-26
		Jim pose la question : What is the meaning of the phrase ‘one part in 10x” where the x is an exponent? I have seen these examples: “...better than one part in 10x” and “...to within one part in 10x.” Penny Nom lui répond.
	4^x=2^x+6		2019-04-05
		Olivia pose la question : How do you find the (b,n) if the solution of the equation 4^x=2^x+6 can be expressed at logb(n) where b and n are both prime numbers? Penny Nom lui répond.
	A dice game		2019-03-17
		Remo pose la question : So, little game my kid came up with. Dice are standard d6. I roll a die, he rolls a die. If he gets the same number as me OR a bigger number he wins. So far so good. Used the opportunity to get him to calculate the probabilities of him winning, see if I could get him interested into looking at this game from a more academic perspective. He did fine. Then we upped the ante. He rolls one die, I roll two dice. I his die has a number that is equal or greater than both of mine, he wins. We had a bit of trouble solving that one, and had to resort to a table with all the results ( 6x36) to figure out where we stood. Then again we upped. He rolls two dice, I roll two dice. If any one of his dice has a number equal to or greater than both of mine he wins. I only win if one of my dice is greater than both of his. And we got stuck. Figured I would need to find a formula to resolve this one, as our earlier solution ( table everything ) suddenly is 36x36, giving well over a thousand possible results. And if we ever go bigger than that then we *really* are going to need another way to calculate it. Harley Weston lui répond.
	The top half of a cone		2019-02-27
		danica pose la question : What portion of the height from top that the cone be cut into two equal volume? Penny Nom lui répond.
	The exponential form of sqrt(13)		2019-02-10
		isaebl pose la question : what is the exponential form of sqrt(13) Penny Nom lui répond.
	An ice cream cone		2019-02-05
		Eyuel pose la question : a scoop of ice cream has a 3-inch radius how tall should the ice cream cone at the same radius be in order to contain all of the ice creams inside the cone Penny Nom lui répond.
	A cylinder with a cone on top		2019-01-16
		Berania pose la question : A water tower in New York City has the shape of a cylinder with a cone on top. The cylinder has a diameter of 12 feet and a height of 15 feet. The roof has an inclination angle of 25 degrees. (a) Determine the height of the cone to the nearest tenth of a foot. (b) Determine the overall volume of the tower to the nearest cubic foot. Penny Nom lui répond.
	The top of a truncated cone		2018-12-02
		Sameer pose la question : Bottom cone radius 1124.height is 200. Top radius 15degree decree to bottom radius. Top radius how much ? Penny Nom lui répond.
	Two cones formed from two circular sectors		2018-11-30
		APARNA pose la question : The central angles of two sector of a circle are 60° and 120° . Using these sectors two cones are made. If the radius of the smaller cone is 5 cm, find the radius and base area of the larger cone. Penny Nom lui répond.
	Why 1/3 in the volume of a cone?		2018-10-20
		Keith pose la question : In the formula for the volume of a pyramid, Volume = 1/3 * base * height, where does the 1/3 come from, intuitively? Penny Nom lui répond.
	Exponential form		2018-09-14
		Saquanna pose la question : What is 25 in exponential form Penny Nom lui répond.
	Exponential form		2018-09-12
		Grace pose la question : hi, I can't figure out how to do 735 in exponential form. note that im only in 5th grade and its not supposed to be in the scientific notation or whatever. okay, thanks! Penny Nom lui répond.
	Exponents		2018-08-13
		Ella pose la question : What is the radical form of 3xy raised to 5 quantity three- fifths? Penny Nom lui répond.
	Form a cone from a circle sector		2018-08-12
		Tinashe pose la question : A 216 sector of a circle of radius 5cm is bent to form a cone. Find the radius of the base of the cone and its vertical angle. Penny Nom lui répond.
	Truncated cones		2018-08-08
		Belgacem pose la question : Hello, I have a truncated cone: height 500mm , Base radius=147mm and I want to calculate the Top surface radius. How to do that? thank you Penny Nom lui répond.
	Paving stones area		2018-08-08
		Declan pose la question : I am thinking of buying some reclaimed block paving stones. There are 750 pieces in total. 60% are L- 140mm x W -140mm x H-50mm 40% are L-170mm x W-140mm x H-50mm How much area will this cover? Penny Nom lui répond.
	The area, radius and slant height of a cone		2018-05-18
		joette pose la question : If you have a cone how to find the slant height when given the area and radius? Penny Nom lui répond.
	The square root 3 in exponential form		2018-05-09
		Paige pose la question : how do you write the square root 3 in exponential form Penny Nom lui répond.
	A volume expression for a pyramid		2018-04-23
		Shaheer pose la question : Do a three sided pyramid and a square pyramid have the same formula if you want to calculate the volume? Penny Nom lui répond.
	A cone formed from a circular sector		2018-04-18
		Jessica pose la question : A circle has a radius of 7.5cm. A sector with an angle of 240 degrees is cut out from the sector. If the sector is folded to form a cone. Find the length of the cone. Penny Nom lui répond.
	Graham's money box		2018-04-12
		Tasnim pose la question : Graham's money box consists of sh.10 and sh.5 coins. There are 24 coins and it's total value is 150. Find how many of each coins are there in the box Penny Nom lui répond.
	The volume of a tent with a hexagonal base		2018-03-27
		shohel pose la question : A tent has its base in the shape of a regular hexagon whose sides are 10m . If the height of the tent is 12m , then find its volume. Penny Nom lui répond.
	1/4 acre of land		2018-03-15
		Jean pose la question : I have 1/4 acre of land.it is square.what should the measurement be for each side be in feet Penny Nom lui répond.
	Water in a cone		2018-02-10
		Shuvo pose la question : The diagram shows a vertical cross-section of a container in the form of an inverted cone of height 60 cm and base radius 20 cm. The circular base is held horizontal and uppermost. Water is pursed into the container at a constant rate of 40 cm3/s. Show that, when the depth of water in the container is x cm, the volume of the water in the container is (πx^3)/27 cm3. Find the rate of increase of "x" at the instant when "x" = 2. Penny Nom lui répond.
	The code on a new phone		2018-02-02
		Maria pose la question : Hi - My husband gave me a new Samsung Galaxy mobile for out anniversaire gift. He set me a challenge which I have to solve before I can use the Phone. He has set the pin code with numbers 4, 7 and 0 and created a four digit code with the said numbers. Is there a way I can somehow list all possible combinations and try them all? Thanks! Penny Nom lui répond.
	A fraction of a mile		2018-01-06
		Sierra pose la question : There are 5280 feet in a mile. what fraction of a mile is represented by 660 feet? Penny Nom lui répond.
	4444^4444		2017-12-10
		Sashi pose la question : 4444 to power of 4444=? Please share the result with simplification. Penny Nom lui répond.
	Exponential form		2017-11-25
		Sherry pose la question : What is the exponential form of 3sqrt 15? Penny Nom lui répond.
	The volume of a cone without calculus		2017-10-02
		Akash pose la question : How to find the volume of a cone without the knowledge of calculus? Penny Nom lui répond.
	Exponential form		2017-07-06
		estela pose la question : what is exponential form of 9×1000 Penny Nom lui répond.
	A lost iPhone pass code		2017-04-17
		Sam pose la question : I have a locked iPhone and it has all my of my holiday photos on it. I changed the password and then I think I did a incorrect number pattern but anyway I know it ends with 99 and the first 4 digits are 235 and 6 could you please send all of the combinations for this password (without the 99) Thx and plz get back ASAP I need it for school Penny Nom lui répond.
	A function which is onto but not one-to-one		2017-04-16
		Avinash pose la question : Define a function f(x):N-->N which is onto but not one-one.Where N is set of natural numbers. Penny Nom lui répond.
	Forming a cone from a circle		2017-04-15
		Tasha pose la question : A sector of a circle subtends an angle of 216 degrees at the centre, If this sector is used to form a cone of vertical height ,8cm, calculate the base radius of the cone Penny Nom lui répond.
	How to find last two or three digits of a large exponent like 17^256?		2017-03-30
		Raginee pose la question : How to find last two or three digits of a large exponent like 17^256? Penny Nom lui répond.
	2^a, 2^b, 1^1 and 1^0		2017-03-17
		Émile pose la question : If you had 2^a = 4 and 2^b = 4 you could assume that a = b right? Yet we can observe that 1^1 and 1^0 both equal 1, yet 1 = 0 isn't true. So if given a log base 1 number 1 the would the answer be 1 AND 0? Penny Nom lui répond.
	Exponential form		2017-03-04
		michael pose la question : I was teaching my student about exponent when we stumbled across this problem. "write (-125)^-3 in exponent form" The problem is with the number "-125". I think -125 = (-5)^3. But one of my student thought that it is -125= -5^3. Both of them is equal to -125 but they totally different in structure. I wonder which one is correct and why it is. I am worried if they get this wrong, it might spell problem in the future when we start substituting the numbers with variable. Thank you very much for reading my question and answering it. Penny Nom lui répond.
	One millionth of one percent of 90,000,000,000		2017-01-16
		Gene pose la question : What absolute number is one millionth of one percent of 90,000,000,000 Penny Nom lui répond.
	Acres and miles		2016-11-30
		Carolyn pose la question : If I am running a pipeline of 1,100 miles, how many one acre plots will it take to cover this distance? Carolyn Penny Nom lui répond.
	Exponential form		2016-08-31
		Lily pose la question : Hi! I was wondering, I was having a little issue understanding this one problem. It was "write 81 in exponential 2 different ways" and I already got 9(2) but I was wondering what the second one could be! Thanks! -Lily Penny Nom lui répond.
	A cone inscribed in a hemisphere		2016-08-07
		anonymous pose la question : A cone is inscribed in a hemisphere. the slant height of the cone is 20cm. When cut along its slant height, the cone forms a sector of a circle. find the angle of the sector, to the nearest 1 decimal place. Penny Nom lui répond.
	The lateral side length of a cone		2016-06-05
		Diane pose la question : Question is find the lateral side length of a right cone with area of 372 sq. cm and base circle radius of 9 cm. Penny Nom lui répond.
	Solve 2^2x + 3(2^x) - 4 = 0		2016-04-27
		Lloyd pose la question : Solve the equation 2^2x + 3(2^x) - 4 = 0 Penny Nom lui répond.
	600(1+0.05)^7		2016-04-21
		chelsey pose la question : I am unsure on how to solve this problem, 600(1+0.05) 7 ? Penny Nom lui répond.
	A stained glass cone lamp		2016-04-09
		Edwin pose la question : In making a 16" dia. cone lamp (stained glass), how many square feet of glass do I need. Penny Nom lui répond.
	The last two digits of a phone number		2016-04-03
		Joshua pose la question : I want to find the last two digits of a phone number whose first eight numbers of a ten digit phone numbers are known. Penny Nom lui répond.
	The volume of a cone		2016-03-31
		Odum pose la question : Find the volume of a cone with radius 6.5cm and height 12.6cm Penny Nom lui répond.
	Exponential form		2016-01-26
		Jufe pose la question : What is the exponential form of ³√11x² Penny Nom lui répond.
	Exponential growth		2016-01-26
		Paul pose la question : The value of a stamp was 0.03 in 1851. The value in 2011 is $50,000. If the value increased exponentially, what is the annual growth rate? Penny Nom lui répond.
	The diameter of the top of a truncated cone		2016-01-24
		Peter pose la question : I am trying to calculate the diameter of a truncated cone given one diameter the height of the cone and a 10% taper from one end to the other. For example a butter churn is 18" tall and 9" in diameter at the base. the sides need to slope inward at 10% What is the diameter at 9" and 18" Penny Nom lui répond.
	The perimeter of a one quarter acre square		2016-01-15
		Kerry pose la question : If you have a perfect square that is one quarter of an acre what are the length of the sides and how do you arrive at the solution? thank you, Kerry. Penny Nom lui répond.
	The height of a truncated cone		2015-12-04
		Jack pose la question : I need to build a truncated cone that has a top of30 inches and a base of 64 inches . The sides need to be at a 64.5 degree angle. This will determine the height. Can this be calculated? Penny Nom lui répond.
	Pouring a foundation		2015-11-27
		Lisa pose la question : Hi im building a house 30ft long 18 ft wide I would like to pour a foundation of 6 inches deep. How much sand, cement , 1/2" gravel do i need. Penny Nom lui répond.
	Exponential form		2015-10-17
		Will pose la question : What is exponential form of -8? Penny Nom lui répond.
	A two digit number		2015-08-21
		Cameron pose la question : Write the 2 digit number that matches the clues. My number has a tens digit that is 8 more than the ones digit. Zero is not one of my digits. My number is ________. Penny Nom lui répond.
	A stone walkway around a pool		2015-05-29
		Jerri pose la question : I have a rectangular pool 15x30 and it will require stone placed around it 4 feet out and 4 inches deep how much will I need? Thanks, jerri Penny Nom lui répond.
	The intersection of a plane and a cone		2015-05-16
		Tom pose la question : Is there a way to derive an equation that describes the perimeter of the intersection of a plane and a cone regardless of the angle of the plane to the cone. Assume that the plane does not cut through the base of the cone, the x, y, z location of the vertex is known, the distance from the vertex to the plane through the axis is know., and that the angle of the cone is known. Chris Fisher lui répond.
	A fraction with a negative exponent in the denominator		2015-04-30
		ellen pose la question : 7/ab to the -4 power Penny Nom lui répond.
	A wireless fence		2015-04-18
		Dave pose la question : I'm buying a wireless fence to keep my pet in my yard. It has a half acre range. In a straight line how far would that be? Penny Nom lui répond.
	A cone of maximum volume		2015-03-16
		Mary pose la question : I have to use a 8 1/2 inch by 11 inch piece of paper to make a cone that will hold the maximum amount of ice cream possible by only filling it to the top of the cone. I am then supposed to write a function for the volume of my cone and use my graphing calculator to determine the radius and height of the circle. I am so confused, and other than being able to cut the paper into the circle, I do not know where to start. Thank you for your help! -Mary Robert Dawson lui répond.
	Constructing a cone		2015-03-12
		Levi pose la question : While the mathematics at the welding shop page was very helpful there is one vital part missing. If I have never built a cone how do I figure out how much bigger the diameter of my circle has to be when laying flat on the floor verses the diameter when it has been pulled into a cone. Harley Weston lui répond.
	The volume of a cone		2015-02-05
		Linda pose la question : How do you calculate the volume of a cone that is 25cm high and has an angle of 20 degrees? Penny Nom lui répond.
	Largest cone in a sphere		2015-01-15
		Alfredo pose la question : What is the altitude of the largest circular cone that may be cut out from a sphere of radius 6 cm? Penny Nom lui répond.
	Missing digits in a phone number		2015-01-07
		Janelle pose la question : I had a friend try and play a game on me, regarding phone numbers, so I only know the area code , and the last four digits of the phone number. Which means, there are 3 digits that I need to figure out all the possibilities to. Penny Nom lui répond.
	A cone is 2/3 full of sand		2014-12-14
		Janice pose la question : A cone with a radius of 3.5 cm and a height of 12 cm is 2/3 full of sand. What is the volume of the sand inside? Penny Nom lui répond.
	Planar curves		2014-12-13
		ann pose la question : what does planar curve mean in your definition of a cone? Penny Nom lui répond.
	Exponential notation		2014-11-27
		Jaqui pose la question : May sound super easy, but how would you SHOW that you simplified 3x3 to the power of 2 (the little 2)? thank you! Jaqui Penny Nom lui répond.
	Doubling the dimensions of a cone		2014-11-21
		Hannah pose la question : If the volume of a cone of height 10 cm is 261.8 cm3, show that this volume is increased by a factor of 8 if the dimensions of the cone are doubled. Penny Nom lui répond.
	Prime factorization in exponent form		2014-10-31
		Emma pose la question : I need to find out how to make a prime factorization of 120 in exponential form. Penny Nom lui répond.
	One zero to a quadratic expression		2014-10-06
		Kevin pose la question : Find a value of n such that f(x) = 3^x2 + nx + 6 only has one zero, is this the only solution to the question? Penny Nom lui répond.
	Filling three holes with stones		2014-08-20
		mark pose la question : how many tonnes of hardcore/crushed stone would it take to fill 1 hole 9ft diameter 5ft deep and 2 holes both 3ft diameter and 5ft deep Penny Nom lui répond.
	1/3 of $320		2014-08-13
		Student pose la question : Grade:5 Please help I got tutor for selective and this question is really bugging me a lot what is 1/3 of $320? plez answer quick before I fail :( Tyler Wood lui répond.
	An oval pool		2014-06-21
		steve pose la question : I have a 16' x 28' oval pool that is buried 24" deep inground. The dig site is dug 2' wider all the way around the pool. I need to back fill this area with stone. I want to fill this area with 6 to 8" of stone. How many tons of stone will this take? Thanks you Steve Penny Nom lui répond.
	A cone of vision		2014-04-29
		David pose la question : It is known that a fish in water looking up has a 97 degree "cone" of vision that sees "through" the surface of the water. If a fish lies 4 inches below the surface, the cone forms a window (circle) smaller than if a fish lies 8 inches below the surface. What is the ratio of inches of depth to the radius of the circle on the surface that is its visual window? Penny Nom lui répond.
	Two cones		2014-04-09
		c.j pose la question : what is the length of the radius of the LARGER cone(the LARGER cone has a slant height of 15) when the SMALLER cone has a radius of 8 and a slant height of 12ft ,please help. Penny Nom lui répond.
	Ms. Werenich's nickels, dimes and quarters		2014-03-19
		London pose la question : Ms. Werenich has twice as many dimes as nickels and 4 more quarters than nickels. If she has $4.50, how many of each coin does she have? What would the let statements be of this problem and can you solve it? Penny Nom lui répond.
	Determine the selling price		2014-03-08
		augustine pose la question : knowing an auctioneer charges a 7% fee and I know I want $74,400 what is the formula to determine selling price. Penny Nom lui répond.
	A cone inscribed in a sphere		2014-02-28
		joel pose la question : how can I find the radius and the height of a cone INSCRIBED in a sphere, given the sphere having a radius of 6? ( note: the diameter of the cone is equal to its slanted height). Penny Nom lui répond.
	Four digit phone numbers		2014-02-25
		Tom pose la question : Hi, I'm an online math teacher, working on lessons for my students. This question is in their book and I can't do it...! Help! It has to do with phone numbers, and in this problem, we are only dealing with the last 4 digits of the number. It asks how many possible numbers we have if at least one digit repeats in the last 4 digits of the number. Penny Nom lui répond.
	The diameter of the base of a cone		2014-02-23
		elwin pose la question : i have a sector of a circle that has 120 degree and 6 cm length. What will be the diameter of the base of the cone. and what is the diameter of the angle is changed to 180. Harley Weston lui répond.
	What is the exponential form of 1/square root of 6v?		2014-02-16
		Prince pose la question : What is the exponential form of 1/square root of 6v Penny Nom lui répond.
	The volume of a cone		2014-02-08
		hibba pose la question : why is the volume of right circular cone divided by 3? Penny Nom lui répond.
	Prime factorization		2014-02-06
		Kadeejah pose la question : Write the prime factorization of 37 in exponential form Penny Nom lui répond.
	Fractions and exponents		2014-01-11
		john pose la question : what is the exponent form of 9^4/7^-2 and 6^-3/10^-5 Penny Nom lui répond.
	A box-and-whisker plot with one whisker		2014-01-09
		Susan pose la question : Question from Susan, a teacher: I read your answer to the question about could a box & whisker have NO whiskers. It made sense to me. However I am preparing for my advanced class and I have a sample graph comparing box plots of data. Several of the box have only 1 whisker. There is no explanation for this. Can you help me out. I cannot think of a data set that would produce this. Thanks! Penny Nom lui répond.
	When would one flip the inequality sign?		2014-01-09
		Natasha pose la question : Would one flip the inequality symbol in this equation: (explain why) (-9a)/(-9) > 81 And please explain in what circumstances one would flip the inequality sign THANKS! Penny Nom lui répond.
	7 digit phone numbers		2013-12-08
		Sean pose la question : Hi I was wondering how you would calculate how may 7 digit phone numbers there are with only odd digits? Penny Nom lui répond.
	Exponential form		2013-12-01
		Alina pose la question : My question says to express each number in exponent form in as many different ways as I can; 16, 81 and 64. How do I do this? Penny Nom lui répond.
	A frustum		2013-10-12
		Lily pose la question : A cone of height 6in. and radius of base 4in. has its top cut off by a plane parallel to its base and 4in from it. Find the volume of the remaining frustum. I have worked out the volume of the entire cone but I don't know how to work out the radius of the top of the frustum. Thanks Penny Nom lui répond.
	Maximize the volume of a cone		2013-10-09
		Conlan pose la question : Hi I am dong calculus at school and I'm stumped by this question: A cone has a slant length of 30cm. Calculate the height, h, of the cone if the volume is to be a maximum. If anyone can help me it would be greatly appreciated. thanks. Penny Nom lui répond.
	A Hole-in-one on all four par 3's		2013-09-04
		Robert pose la question : There are four (4) par 3's at a specific 18 hole course. One member has the honor of making a Hole-in-one on all four par 3's. It has taken him 8 years to do it! How does one go about computing the odds of this TREMENDOUS accomplishment? Respectfully, Robert laffal Victoria West lui répond.
	Ordering crushed stone		2013-09-03
		Prakash pose la question : Dear Sirs, I am working in a Soft Landscaping contracting company. If I need to purchase crushed stone with the size 50-70mm for $53,429 m^2$ area, how many 20feet containers should I need to order to my suppliers? The 20foot container has internal dimensions 5,897 mm by 2,348 mm by 2,285 mm and the $53,429 m^2$ area is to be covered by 10 cm of stone. Harley Weston lui répond.
	Differentiate x^x - 2^sinx		2013-08-09
		tarun pose la question : derivative of x^x - 2^sinx Penny Nom lui répond.
	Slicing through a cone to form an ellipse		2013-08-06
		Pulkit pose la question : we get an ellipse on slicing through a cone. Is there a relation between central axis of the cone and this ellipse? Does it pass through the any of the foci of the ellipse? Chris Fisher lui répond.
	A one acre plot of land		2013-06-19
		Carol pose la question : If I have a one acre plot of land, what is the measurement in feet on each of the four sides? Penny Nom lui répond.
	650*(1+0.005)^96		2013-04-17
		joAnn pose la question : i am trying to figure out how to solve a question like this for example: 650(1+.005)96 I have been doing it this way but takes forever and wanted to know a shorter way 650 x 1.005 x 1.005 x 1.005 x 1.005 96 times HELP Penny Nom lui répond.
	A cone problem		2013-04-14
		Courtney pose la question : Hello, I am having difficulty solving this cone problem. The biggest challenge I have is figuring out what angle they are talking about: The angle at the base of a cone is 34.5 degrees. Find the diameter of the cone at point on the edge of the cone 26cm from the tip. Penny Nom lui répond.
	How do i write log_8(P) =7 in exponential form?		2013-04-14
		nancy pose la question : How do i write this in exponential form log8P =7 Penny Nom lui répond.
	An equation with exponents		2013-02-24
		Chelsea pose la question : (81 to the power of 3n+2 over 243 to the power of -n) is equal to 3 to the power of 4 Find the value of n. The answer I got was n is equal to negative (4 over 7). The answer in my text was n is equal to negative (4 over 17) Penny lui répond.
	The height of a sheet metal cone		2013-02-09
		Charles pose la question : Sheet metal cone. I need a cone with a finished base of 38.19719 diameter The cone is to be from a 48 diameter round with the wedge cut out. The best calculation I have is the arc is 286.479. (correct?) Could you verify this arc angle but more so what is the cone height? Harley Weston lui répond.
	Exponential form		2013-02-05
		Sandra pose la question : What is 37,008 in exponential form? Help me please!!! Penny Nom lui répond.
	How many edges does cone have?		2013-01-28
		Meriem pose la question : how many edges does cone have pls? Lorraine Dame, Chris Fisher and Walter Whiteley lui répond.
	A triangular island		2012-12-29
		Udit pose la question : A long time ago Mr Gibson found an island shaped as a triangle with three straight shores of length 3 km,4 km and 5 km. He declared an 'exclusion zone' around his island and forbade anyone to come within 1 km of his shore. What was the area of his exclusion zone? Penny Nom lui répond.
	A 4 digit phone lock using the digits 4, 2, 3 and 0		2012-12-24
		Ragu pose la question : I would like to know formula for searching a combination of 4 digit. eg. I knew my Phone Lock combination is my car plate number 4230. But this time, i used another way around instead of 4230. But I am sure, there is only this 4 digits only. 4 & 2 & 3 & 0 Penny Nom lui répond.
	What's your secret?		2012-11-11
		ryan pose la question : Tuscan school has a fair. At the fair, Pia plays "what's your secret? The game starts with 3 players who are told the same secret. Each of those 3 players tells another 3 player, and so on. At the end of the 3rd round, everyone who knows the secret will compare what they have heard. What number in exponent form represents the number of people who know the secret after 3 rounds? How many people is that? Thank you very much. P.S. I got 3 cube. which is 27 But when i map it out I end up with 39. Penny Nom lui répond.
	A label to cover a plastic cup		2012-10-23
		Kevin pose la question : I'm trying to make a label to cover the entire outer area or a plastic cup. I know there must be a way to figure out the dimensions needed, but I can't seem to figure it out. The circumference of the bottom of the cup is 21.4cm and the circumference at the top of the cup is 29.8cm. The cup is 14.5cm tall. What should the height of the arc from the plane connecting the two ends of the 21.4cm arc. I attached a diagram where x is the value I'm looking for. I'm guessing there is some simple relationship between the length of a line and the arc needed to turn that line into a perfect circle, but I don't know what it is. Can you figure this out and share it with me? Thanks. -Kevin Penny Nom lui répond.
	Composition of functions and one to one		2012-10-17
		Ariana pose la question : If f o g are one to one function,does it follow that g is one to one? Give reasons for your answers Penny Nom lui répond.
	Functions		2012-09-18
		nayeem pose la question : I tried with many functions but I am not getting the exact values please help me A give an example of a function whose domain equals the set of real numbers and whose range equals the set the set {-1,0,1}? B Give an example of a function whose domain equals (0,1)and whose range equals [0,1] C.Give n example of a function whose is the set of positive integers and whose range is the set of positive even integers D. Give an example of a function whose domain is the set of positive even integers and whose range is the set of positive odd integers E give an example of function whose domain is the set of integers and whose range is the set of positive integers. F. Give an example of function whose domain is the set of positive integers and whose range is the set of integers. please show me the work Please give me the trick of finding such functions Robert Dawson and Harley Weston lui répond.
	Functions		2012-09-18
		nayeem pose la question : I tried with many functions but I am not getting the exact values please help me A give an example of a function whose domain equals the set of real numbers and whose range equals the set the set {-1,0,1}? B Give an example of a function whose domain equals (0,1)and whose range equals [0,1] C.Give n example of a function whose is the set of positive integers and whose range is the set of positive even integers D. Give an example of a function whose domain is the set of positive even integers and whose range is the set of positive odd integers E give an example of function whose domain is the set of integers and whose range is the set of positive integers. F. Give an example of function whose domain is the set of positive integers and whose range is the set of integers. please show me the work Please give me the trick of finding such functions Robert Dawson and Harley Weston lui répond.
	Cones, pyramids, cylinders and prisms		2012-09-13
		Roy pose la question : I read on this page that a pyramid is a special kind of cone, but a cone is not a pyramid. Does this apply to cylinders. Is a prism a special kind of cylinder, but a cylinder is not a prism? Robert Dawson lui répond.
	Exponential form		2012-09-04
		angie pose la question : How do i write 9^-5 in exponential form? Penny Nom lui répond.
	Exponntial form		2012-08-30
		Robin pose la question : My math teacher has asked the question: "Write mmmxxjmyy2 in exponential form" How would you solve this problem? Penny Nom lui répond.
	Making a wind sock		2012-08-28
		John pose la question : I am trying to build a wind sock and need to be able to lay the shape out on cloth. I need the wind sock front opening (diameter) to be 3 1/2" and the rear opening diameter to be 1". The windsock needs to be 9 1/2" long. I tried using the example of the person trying to make a crayfish trap but got confused and could not figure out my numbers. Any help would be greatly appreciated. Thanks John Penny Nom lui répond.
	The exponential function form f(x)=a^x		2012-08-13
		Lucy pose la question : Hi, Why does the "a" value in the exponential function form f(x)=a^x have to be negative? Penny Nom lui répond.
	A pile of topsoil		2012-07-23
		Perry pose la question : I have a pile of topsoil that is 42ft long and 16ft tall shaped like a cone how many yards of topsoil do I have. Penny Nom lui répond.
	Fence post holes		2012-07-19
		Gerry pose la question : Hello, I'm digging 30 8" dia holes, 5 ft deep for fence posts that are 4"x 4" Can you please help me figure out how much stone dust I should order for all 30 holes. Thanks Penny Nom lui répond.
	A truncated cone: the central angle		2012-07-17
		Tom pose la question : I have researched several sites, including this one and am fairly confident I can do the calculations required to produce the two radii and the slant height for a truncated cone. I a somewhat confused by the central angle. Some sites indicate that it should never exceed 180 degrees while others do not. Different examples on your site seem to use this in two different ways in constructing a truncated cone. Sometimes the angle seems to indicate the section to be removed, while in other examples the angle seems to indicate the section to be saved. Since the two angles will always total 360 I am confused about how to use the info to calculate the minimum rectangle required to contain the pattern. I'm guessing that in some cases I may need to use the chord or sagitta to determine the desired height and width of the material. Any help is greatly appreciated. Thank you. Tom Penny Nom lui répond.
	Expanded exponential form?		2012-06-12
		Ramon pose la question : express the numbers 990 614 000 005 in expanded exponential form. Harley Weston lui répond.
	A lamp shade		2012-05-15
		Fleur pose la question : I am helping my child make a cone lampshade, the measurements are as follows in "cm's" 21 cm = height 8 cm = top diametre 40 cm = bottom diametre Please could you give the pattern (cut out) dimensions for final cut. Penny Nom lui répond.
	The spread of a rumor		2012-04-09
		Roohi pose la question : The function f(t) = a/(1+3e^(-bt)) has also been used to model the spread of a rumor. Suppose that a= 70 and b=3 0.2. Compute f(2), the percentage of the population that has heard the rumor after 2 hours. Compute f'(2) and describe what it represents. Compute lim t approaches infinity and describe what it represents. Penny Nom lui répond.
	Radioactive decay		2012-04-02
		Christy pose la question : Hello, how do I go about answering this question? Should I be using the formula Ce^(kt)? Given that the decay constant for Radium is -.000428/year, how long, to the nearest year, does it take a sample to decay to 15% of its present mass? Penny Nom lui répond.
	A water tank is in the shape of a truncated cone		2012-03-08
		Victoria pose la question : Suppose you have a water tank in the shape of a truncated cone. The larger diameter is K, the smaller diameter is K/2, and the height is also K (all measured in meters). The force of gravity on an object of mass, m, is F=9.8m (measured in Newtons). The density of the water is 1000 kilograms per cubic meter. What is the volume of the tank and how much mass will the tank have when it is full? Penny Nom lui répond.
	81+8 to the 3 power		2012-03-08
		KiMesha pose la question : 81+8 to the 3 power Penny Nom lui répond.
	2x^3*2x^2/3x^2		2012-03-06
		hope pose la question : 2x^3*2x^2/3x^2 Penny Nom lui répond.
	The dimensions of a conical tent		2012-03-04
		yash pose la question : a conical tent is to accommodate 11 people.Each person must have 4m square of space on the ground and 20m cube at air to breathe.Find the height and radius of the conical tent.26202 Penny Nom lui répond.
	Building a tipi		2012-01-29
		Lacy pose la question : Hi there! We are building a tipi for our children. We want to build a large one about 15ft tall with a base of about 15 feet diameter. I am trying to figure out how much canvas we need to accomplish this. I graduated about 20 years ago and am struggling. Please help if you can. Penny Nom lui répond.
	Exponential form		2012-01-15
		Helen pose la question : How do you write (1/x) in exponential form? Penny Nom lui répond.
	The volume of a frustum of a cone		2011-12-24
		CV pose la question : If I know the height, taper, and volume of a frustum cone, what are its Radii? Calculating frustum cone volume is straight forward. v=Pi/3*h*(R*R+r*r+R*r) where; v=volume; h=frustum height; R=major radius; r=minor radius; Pi=3.1415926; t=taper, ('slant angle' where t=0 is a disk) Here is the tricky part. Knowing 'h', 't', & 'v'; Calculate one or both of 'R' & 'r'. Specifically, what is the formula for 'R=' or 'r='? Penny Nom lui répond.
	Water is flowing into a cup		2011-12-19
		Tim pose la question : A cup has a radius of 2" at the bottom and 6" on the top. It is 10" high. 4 Minutes ago, water started pouring at 10 cubic " per minute. How fast was the water level rising 4 minutes ago? How fast is the water level rising now? What will the rate be when the glass is full? Penny Nom lui répond.
	Exponential form		2011-12-12
		Zoey pose la question : What is the exponential form of 1/8?? Penny Nom lui répond.
	I started with Euler's identity and manipulated it		2011-11-14
		anonymous pose la question : I started with Euler's identity and manipulated it e^i*pi=-1 e^-i*pi=(-1)^-1 e^-i*pi=-1 e^-i*i*pi=(-1)^i e^--pi=(-1)^i e^pi=(-1)^i type it in in a calculator and you get e^pi=23.1406926... and (-1)^i=0.0432139183... What did I do wrong? Robert Dawson lui répond.
	A log equation in exponential form		2011-11-11
		Sarah pose la question : Express the equation in Exponential form log2 to the 16th power=4 Penny Nom lui répond.
	Exponential form?		2011-08-30
		Emily pose la question : I have a 6th grader that needs to find out what is the exponential form of 461,885,811 Penny Nom lui répond.
	A pattern for a cone		2011-08-30
		Izzy pose la question : I need to create a cone as a prop and my math is not good enough to create the pattern. Here are my instructions : The diameter is 2'5" and it has to be 4 feet tall. It is a giant cone. I want it to be pointy at the end, not truncated. Penny Nom lui répond.
	Exponential form		2011-08-23
		kiara pose la question : The African bush elephant is the largest land animal and weighs about 8 tons . Write the amount in exponential form . Robert Dawson lui répond.
	A cone with an oval as a base		2011-08-03
		Emily pose la question : Hi, I was wondering how to calculate the surface area of a cone with an oval as a base (which I think is referred to as an elliptic cone or something like that). I have the both the maximum and minimum radius as well as the height, but I don't have a slant height and I'm not sure how to calculate it and then calculate surface area. I would really appreciate some help. Thanks! Robert Dawson lui répond.
	Exponential form		2011-05-18
		Kara pose la question : How do I write this in exponential form? log 1/8 = -3 Penny Nom lui répond.
	An exclusion zone around a triangle II		2011-05-03
		Aishwarya pose la question : A long time ago Mr gibson found an island shaped as a triangle with three straight shores of length 3km, 4km and 5km. He declared an exclusion zone around his island and forbade anyone to come within 1km of his shore. What was the area of his exclusion zone? This question was answered but did not understand the explanation. Robert Dawson lui répond.
	(27^r^-1)^-2/3		2011-04-24
		Yung-Ju pose la question : (27^r^-1)^-2/3 Penny Nom lui répond.
	Cone story problem		2011-04-16
		Chelsea pose la question : There is a cone with a story problem that states only that the radius is the same as the altitude and that the slant height of the cone is 6cm. I have no idea how to figure this problem out. Penny Nom lui répond.
	The volume of a flower pot		2011-04-07
		kp pose la question : I have 2 flower pots with the following dimensions that I am trying to calculate the volume of Soil I will need to fill them. pot #1 29"tall, top of pot 31.5 inches across( radius of 15.5") the bottom of the pot is 21"across (radius 10.5) Pot #2 29"tall, top of pot 26 across (radius 13") the bottom of the pot 17'"a cross (radius 8.5") thank you KP Penny Nom lui répond.
	A conical container and a spherical balloon		2011-04-06
		Steven pose la question : Water is running out of a conical container 12 feet in diameter and 8 feet deep (vertex down) and filling a spherical balloon. At the instant the depth of the water in the cone is 4 feet, the radius of the sphere is approximately 4 feet. The rate of change of the depth of the water in the cone at the instant is approximately ______________ times the rate of change of the radius of the balloon. Penny Nom lui répond.
	The number of points on a line is equivalent to that of a surface		2011-03-24
		Gary pose la question : I I was reading about how the number of points on a line is equivalent to that of a surface. This was done by taking any point on a line then taking alternating digits and making them as points on an x and y axis therefore points on a surface.The problem is as i see it if you just take a line then hold it over a surface you have just put the points on the line in a one to one correspondence with the points directly under it on the surface.Now you have all the rest of the surface which cannot be mapped onto the line since it is already used up.What am i missing? Penny Nom lui répond.
	What is x to the power of 0?		2011-03-23
		Jason pose la question : What is x to the power of 0? Robert Dawson lui répond.
	At what rate is the grain pouring from the chute?		2011-02-26
		MJ pose la question : Suppose that grain pouring from a chute forms a conical heap in such a way that the height is always 2/3 the radius of the base. At the moment when the conical heap is 3 m high, its height is rising at the rate of 1/2 m/min. At what rate (in m^3/min) is the grain pouring from the chute? Penny Nom lui répond.
	Cutting the top off a conical tent		2011-02-22
		tom pose la question : how far from the top must you cut a conical tent in order to cut the cloth in half... Penny Nom lui répond.
	Making a truncated cone		2011-02-18
		lisa pose la question : We need to make a cone that has the following dimensions. 14-3/8" diameter on large end 13-3/8" diameter on small end 4" tall What are the dimensions I need to cut in order to make a cone with one seam? Stephen La Rocque lui répond.
	Two conical tanks		2011-02-17
		rustom pose la question : Two vertical conical tanks (both inverted) have their vertices connected by a short horizontal pipe. One tank, initially full of water, has an altitude of 6 ft. and a diameter of base 7 ft. The other tank, initially empty, has an altitude of 9 ft., and a diameter of base 8 ft. If the water is allowed to flow through the connecting pipe, find the level to which the water will ultimately rise in the empty tank (Neglect the water in the pipe.) Penny Nom lui répond.
	Calibrating a conical tank		2011-02-05
		Bill pose la question : Hi, I have a round tank with tapered sides where I know the diameter at the top and bottom. Is there a formula I can use to calculate the volume by measuring from the bottom up the side (at the angle of the side) to any given point? Thanks, Bill Stephen La Rocque and Penny Nom lui répond.
	A cone with a specific angle		2011-02-01
		John pose la question : Hi my daughter came with a seemingly easy question (which to me it was not) How to make/calculate a cone of a specific angle from top to bottom radius. Penny Nom lui répond.
	(7cubed * 8(exponent6))exponent 6		2011-01-29
		Shalaine pose la question : What is the exponential form of (7cubed•8(exponent6))exponent 6? Penny Nom lui répond.
	Flipping a cone over		2011-01-17
		Fionna pose la question : The height of your cone is "x". Holding the cone so that the vertex is at the bottom, fill it half full with water. The depth of the water is "1/2x". Put a lid over the top, and flip it over. What is the new depth of the water, now that the cone is flipped? Penny Nom lui répond.
	Exponential form		2011-01-02
		jumana pose la question : find any five examples of exponential form from real life situation Penny Nom lui répond.
	A truncated cone		2010-12-31
		jagjeet pose la question : dear suppose i have cone of 50cm radius at base and 100cm radius at top at a height of 80cm. now keeping base radius of 50cm and height of 80cm i want to increase top radius to 150cm how will i do that. plz height m talking abt is vertical height not slant height Penny Nom lui répond.
	A water tank has the shape of a right circular cone		2010-12-07
		mike pose la question : A water tank has the shape of a right circular cone with height 12 feet and radius 8 feet. Water is running into the tank so that the radius r (in feet) of the surface of the water is given by r=0.75t where t is the time (in minutes) that the water has been running. the volume V of the water is given by V=1/3 pi r^2h. Find V(t) and use it to determine the volume of the water when t=5 minutes. Penny Nom lui répond.
	How long will you and your friend be able to talk?		2010-11-23
		beket pose la question : you and your friend leave your home town at the same time your friend travels by train 45 mph directly east while you travel by train 50 mph going directly south you are talking on cell phone but you plan charges extra if the phones are 100 miles apart. How long will you and your friend be able to talk before the charges increase? Penny Nom lui répond.
	Two algebraic expressions		2010-10-29
		chaptay pose la question : what is the difference between x(n^2) and x(n)^2 Penny Nom lui répond.
	Powers		2010-10-20
		dylan pose la question : how do you write 20736 in exponential form .same for 1728 and 50625. is there a formula to figure out how to express large know numbers in exponential form. Penny Nom lui répond.
	An exponential equation		2010-10-19
		Sandi pose la question : Question from sandi, a student: I have several questions similar to this one and was wondering if you could walk me through this one. I'm totally lost on how to do it. Paramecia reproduce by splitting in two. In a laboratory flask, a colony of paramecia had an initial population of 500. Each day, the population of the paramecia was counted. The results are as listed. Time (in days)------Population 0-----------------------500 1-----------------------600 2-----------------------720 3-----------------------864 4----------------------1037 5---------------------1244 6---------------------1493 7----------------------1792 8---------------------2150 1.)Using graphing calculator make a scatter plot of the data in table. I think I did this part right I set my window at Xmin=0 Xmax=10 Xscl=1 Ymin=0 Ymax=2500 Yscl=100 Xres=1 2.) Determine an exponential equation to represent the population as a function of time without using a graphing calculator.I have no clue how to do this. 3.)Suppose the flask and food supply is large enough to support the trend of the population growth. Estimate the population of the colony when the time is 10 days. Penny Nom lui répond.
	Can a function be both even and one to one?		2010-10-09
		Tracy pose la question : Can a function be both even and one to one? Harley Weston lui répond.
	Exponential form		2010-10-06
		celina pose la question : what is the exponential form of 4x*4x Penny Nom lui répond.
	(5xy)^5		2010-09-10
		ana pose la question : (5xy)^5 Penny Nom lui répond.
	Exponential form		2010-08-24
		Courtney pose la question : What the Exponential form? For Ex. X2*X5*X4?? Penny Nom lui répond.
	A play tent		2010-06-28
		Susan pose la question : Hi!!! I am making a play tent as seen at the link below and need to figure out how to get the dimensions for the cone shape. The one shown has 4 different seams, but I guess I can get away with just one seam to sew it together (?) I need it to go over a hula hoop as that is what I am using for the round support at the top. My hula hoop is 35" in diameter from outside edge to outside edge. I would like the height of the teepee to be around 30" from the center to the peak. Thanks so much, oh my gosh, I have been fretting for 2 days about this and my hair is about to fall out!!!! Please contact me if you need any additional info. ~Susan http://www.landofnod.com/family.aspx?c=52&f=4100 Penny Nom lui répond.
	Volume of a styrofoam cup		2010-06-23
		Stacy pose la question : how do you find the volume of a truncated cup with height of 3, top diameter of 2.5, and a bottom diameter of 2 Penny Nom lui répond.
	Exponential form		2010-06-16
		charlotte pose la question : what is the exponential form of 6x6x6x5x5x5x5= Robert Dawson lui répond.
	My phone is "sim locked"		2010-06-10
		Daniel pose la question : Question from daniel: got a phone that says sim locked, it requires 0-9 digit code to get in, how many combinations could there be if you could please list the possibilities, the number can be repeated. Penny Nom lui répond.
	graph y=(2x^2-3x)e^ax		2010-05-31
		James pose la question : graph y=(2x^2-3x)e^ax Robert Dawson lui répond.
	More on a truncated cone		2010-05-28
		Mike pose la question : Question from Mike, a parent: I was reviewing this question and answer: http://mathcentral.uregina.ca/QQ/database/QQ.02.06/phil1.html But I have trouble with this part: Now if we express the radius of the inside circle as r and the outside circle's radius is R, then this means r/R is 911/1728. But earlier we said that the outside radius R is simply w more than the inside radius r, so R = r + 282. That means that r/R = r/(r + 282). Now we can simply solve the equation for r: r/(r+282) = 911/1728 This means r = 314 mm (with rounding). Can I get more detail on the method to solve for r? Thank you, Mike Penny Nom lui répond.
	The "vertex" of a cone		2010-04-27
		Tom pose la question : By definition a vertex is a point where three edges meet in a 3 dimensional object. My ten year old son argues that the point at the top of a cone is not a vertex since it does not fit the definition. He got the answer wrong on a test recently but insists that he is right. I need a mathematician to answer this for him. Robert Dawson and Chris Fisher lui répond.
	A conical pile of gravel		2010-04-13
		Chassity pose la question : The gravel pile is 120' around at the base and goes up 20' high at the peak. How many tons or yards of gravel in that pile? Penny Nom lui répond.
	If a third is a fourth of a number, what is the number?		2010-04-08
		larry pose la question : If a third is a fourth of a number, what is the number? Penny Nom lui répond.
	A max min problem		2010-04-06
		Terry pose la question : The vertex of a right circular cone and the circular edge of its base lie on the surface of a sphere with a radius of 2m. Find the dimensions of the cone of maximum volume that can be inscribed in the sphere. Harley Weston lui répond.
	A 3D cardboard cupcake		2010-01-30
		Margaret pose la question : Hi, I'm an art student and I'm attempting to build a 3D cupcake out of cardboard. I want it to have a circular base of 8.5 inches and sides that are 7'' tall and slope outward so the top of the base is 29'. The top with the frosting would be a detachable lid made from a cone with a base circumfrance of 29". My problem is how to cut the side so they will slope out, I'm pretty sure there needs to be a curve, however I don't how to calculate the degree of it. Ideally I want the sides to be a single piece of cardboard. I also don't know how to calculate the arc needed to make a cone who's circular base's circumfrence is 29''. Thanks, Margaret Stephen La Rocque lui répond.
	A 4-digit phone code		2010-01-21
		pat pose la question : my daughter can`t remember her 4-digit code to unlock her phone. she is pretty sure it starts with a 4. can you help us? my brain is locked up Robert Dawson lui répond.
	The cube of an integer		2010-01-20
		Shankar pose la question : Can the cube of an integer end with 1985 ones ? Robert Dawson lui répond.
	A cone circumscribed about a given hemisphere		2010-01-19
		Neven pose la question : The cone of smallest possible volume is circumscribed about a given hemisphere. What is the ratio of its height to the diameter of its base? (G.F.Simmons, Calculus with Analytic Geometry, CH4 Applications of Derivatives) Chris Fisher lui répond.
	The volume of a frustum		2009-12-29
		dave pose la question : I have a frustum top 1.7r bottom .55r and 2.14 h I have to calculate cement in a silo every week. I am not very good at maths but i have been adding the top and bottom to get an average so as to turn it into a cylinder and i come up with 8.5m3 I know that the correct volume is 9.24 m3. Can you tell me why getting an average width on the top and bottom of a frustum doesn't work. Thank you. Chris Fisher lui répond.
	A pile of sand		2009-12-16
		Malik pose la question : Sand is leaking out of a hole at the bottom of a container at a rate of 90cm3/min. As it leaks out, it forms a pile in the shape of a right circular cone whose base is 30cm below the bottom of the container. The base radius is increasing at a rate of 6mm/min. If, at the instant that 600cm3 have leaked out, the radius is 12cm, find the amount of leakage when the pile touches the bottom of the container. Harley Weston lui répond.
	One-eighth of one million dollars		2009-11-16
		Jarrett pose la question : what is 1/8 equal to out of a million dollars. Penny Nom lui répond.
	A truncated cone		2009-11-11
		Lucian pose la question : I need to calculate the bottom inside diameter of a truncated cone. The top insdie diameter is 1450mm. The material is 6mm thick The cone angle is 20 degrees The slant length is 152mm I would like a formula so that I can build a spread sheet Penny Nom lui répond.
	Evaluating -x^2 + (yz - 3)^2		2009-09-28
		Kathy pose la question : My daughter and I are having trouble solving this equation: -x²+ (yz – 3)² if x=-4,y=2 and z=0 We are having difficulty with the -x² part of the equation. Thanks Penny Nom lui répond.
	Exponential form		2009-09-18
		karen pose la question : Q: Write the following in exponent from: a * a * a * a * * * a, where there are n -1 a's note: *asterisk means times. Penny Nom lui répond.
	how many ones are in 1 million		2009-09-17
		djuan pose la question : how many ones are in 1 million Harley Weston lui répond.
	Exponential form		2009-09-08
		hanna pose la question : hi, well i am really bad in math and i have a math paper and i was just wondering what 3x3x3x3x3 was in exponential form and what is exponential in a way a person like me would understand? Penny Nom lui répond.
	What is 8 tons in exponential form?		2009-09-01
		Tyler pose la question : what is 8 tons in exponential form Penny Nom lui répond.
	Exponential form		2009-08-31
		cecil pose la question : what is the exponent form 564000? Stephen La Rocque and Harley Weston lui répond.
	Making a cone		2009-08-19
		angela pose la question : how can i make a cone with a 6cm of heigth and has 2cm radius in the opening?? Stephen La Rocque lui répond.
	Fitting the curve y=a*exp(b*x)+c		2009-08-12
		aika pose la question : Could one show me the complete algorithm and formula for finding the coefficients (a,b, and c) in exponential regression model y=a*exp(b*x)+c Robert Dawson lui répond.
	The volume of a telephone pole		2009-08-11
		robert pose la question : 12.5"@ base x 7" @ top and 40' height. How would I find the volume in cubic feet for a telephone pole with these dimensions? Harley Weston lui répond.
	Exponential form		2009-08-05
		motaz pose la question : Let x = log_2 1/8 Write the exponential form of the equation and solve the equation for x Stephen La Rocque lui répond.
	A cone with the top cut off		2009-08-02
		Paul pose la question : I am making a cone with a diameter of 1300, a base of 500, a side length 800. I need to workout so I can draw it out flat, cut it out, and make into a cone. Harley Weston lui répond.
	The lateral area of a cone		2009-07-15
		ashley pose la question : What is the radius of a cone with the lateral area being 443.3 mm^2 and the slant height being 14.7 mm. Penny Nom lui répond.
	Fractional Exponents		2009-07-07
		bob pose la question : 2^5/2 - 2^3/2 Janice Cotcher lui répond.
	Find out the length of a cup when its volume is halved		2009-05-25
		Thomas pose la question : I'm having trouble with a question. What kind of formula would i use to find out the length of a cup when its volume is halved? Stephen La Rocque lui répond.
	Nickels, dimes and quarters		2009-05-25
		Amy pose la question : Coming from South Africa I find working with nickels, dimes and quarters confusing. How many dimes are in a nickel and how many quarters are in a dime? Penny Nom lui répond.
	The dimensions of a larger cup		2009-05-23
		Elizabeth pose la question : Hey If i have a cup that holds a volume of 477mL and the bottom radius is 2.8cm and the top radius is 4.9cm and the height is 10cm. If i increase the volume by one and a half times what is the new measurements if the cup is directly proportional to the first one. Thank you Stephen La Rocque and Penny Nom lui répond.
	The volume of a cone		2009-05-20
		Lillian pose la question : okay! so my math question is about the volume of a cone! my work sheet gave me the volume and base of the cone and asked me for the height! please help me discover the height of a cone when the volume is 78.54 cm (cubed obviously) and the base is 6 centimeters. thanks so much :) Penny Nom lui répond.
	Rewriting an Expression with Positive Exponents		2009-05-13
		lynda pose la question : (-4x)to the 0 power times x squared over 3to the -3 power i have to rewrite the expression with pos exponents Janice Cotcher lui répond.
	1/(square root 16)		2009-04-21
		Conor pose la question : Hi Guys! I dont have a square root sign so im just gonna use the ^ symbol :) I am just wondering if 1/(16^a) when re-written can it be 1/16 to the power -1/2 Thanks :) Penny Nom lui répond.
	12 oz. cup		2009-04-19
		Tom pose la question : I am a ceramic teacher and wanted my students to make a 12 oz. cup, what formula should we use? Chris Fisher lui répond.
	Exponential form		2009-04-16
		Pete pose la question : Hi, How do you express ³√h^-4 in exponential form. I am having a lot of trouble with this one. thanks Pete Stephen La Rocque lui répond.
	A large, hollow, ice cream cone		2009-04-03
		Darah pose la question : A manufacturer is making a large, hollow, ice cream cone to serve as an ad for a local Baskin-Robbins. The ice cream cone is made up of a cone with height 8 feet, topped by a hemi-sphere with radius 6 feet. How much ice cream could the hollow object hold? If a gallon is 0.13368 cubic feet, how many gallons does it hold? If 3 gallons of Baskin-Robbins heavy cream chocolate blend weighs 24 pounds, how much would the ice cream cone weigh, excluding the weight of the construction material? Stephen La Rocque lui répond.
	Grain of rice on a chess board		2009-03-30
		andy pose la question : Is there an easy way for my students to find out 8 to the power of 21 to solve the grains of rice doubling investigation on a chessboard? Any suggestions welcome. Thanks very much Robert Dawson and Claude Tardif lui répond.
	How many ball bearings can you make from a cone?		2009-03-14
		Vatsal pose la question : there is a sum in my maths book which states the following: how many ball bearings of diameter 2.5 cm. can you get by melting a solid metalic cone of radi. 20cm and a Hight of 5 meters? how do i do this please tell me even the minute things like cancellatoins and where to use = , ; or any such thing because Im a bit weak in maths Harley Weston lui répond.
	Express 13 mills as a decimal part of $1.00.		2009-03-13
		Kenneth pose la question : Hello: I read the following in an old business mathematics textbook: "Express 13 mills as a decimal part of $1.00." I can determine the answer as follows: There are 1000 mills in or per $1.00. 13 mills divided by 1000 mills/$1.00 equals $0.013, the answer. My question is as follows: What does "...as a decimal part of $1.00" indicate or represent from "Express 13 mills as a decimal part of $1.00."? Is (a decimal part of $1.00) any decimal less than $1.00 with the decimal having a dollar sign before it. I thank you for your reply. Harley Weston lui répond.
	If 5 to the power of y = 625, what is y?		2009-03-02
		Charlene pose la question : If 5 to the power of y = 625, what is y? Penny Nom lui répond.
	Comparing 2^3^4^5 ; 2^5^4^3 ; 5^4^3^2 etc.		2009-03-01
		JIM pose la question : WHICH WOULD BE LARGEST USING THE NUMBERS 2,3,4,5 : 2^3^4^5 ; 2^5^4^3 ; 5^4^3^2 : ETC. OF ALL THE POSSIBLE COMBINATIONS ? IS THERE A GENERAL FORMULA ? I AM UNABLE TO FIND A COMPUTER THAT CAN HANDLE SUCH LARGE CALCULATIONS . I ALSO DO NOT THINK IT IS AS STRAIGHT- FORWARD AS FIRST APPEARS . THANK-YOU , JIM Stephen La Rocque, Robert Dawson and Harley Weston lui répond.
	A conical sleeve		2009-02-17
		Jonathan pose la question : I'm having a hard time making a design pattern for a cone sleeve, the thing is the cone sleeve is 22 degrees, how can i know the angle of this when it is flat on paper, based on my calculations, it should be around 66 - 69, but i want it to be exact can anybody help? Penny Nom lui répond.
	A fraction with negative exponents		2009-02-14
		Gabriel pose la question : What does the line seperating the top from the bottom mean? what does it tell you to do and what is the answer to the question? Question 3 Simplify. Write the answer using only positive exponents. Assume all variables represent nonzero numbers. (x^-5)^-4(x^-1y)^3 ________________ (xy^4)^3 Penny Nom lui répond.
	Large exponents		2009-02-12
		Dan pose la question : I would like to know how to calculate a whole number as the base that has a large exponent;Such as 7 to the 23rd.power=. Otherwise if I use a calculator it goes off the scale. Stephen La Rocque lui répond.
	6^x = y		2009-02-12
		Jamie pose la question : Find x: 6^x=y Harley Weston lui répond.
	A sphere in a cone		2009-02-10
		Shubham pose la question : An upturned conical vessel of radius 6cm and height 8cm is completely filled with water. A sphere is lowered in the conical vessel filled with water and the size of sphere is such that it just touches the sides of cone and is just immersed. What fraction of water overflows? Harley Weston lui répond.
	Fertilizer in a bin		2009-02-03
		Todd pose la question : Hello I am looking for a formula to figure out the fertilizer volume in a hopper bottom bin not only when it is full but part full as well. When you are filling it is heaped up in the middle to make a cone and when you are emptying the bin the cone is inverted so it would be nice to be able to quickly figure out the tonnes partly filled and when full. Lets say the bin is 32 feet high from top of bin where you fill to the bottom where the product goes out and it is 16 feet in diameter. I know how to calculate the cylinder it is the cones on the top and bottom of the bin I have the main question on. Harley Weston lui répond.
	Missing three digits in a phone number		2009-01-30
		Elmer pose la question : I have part of a phone number. the first 3 digits are 212, the last digit is four, and the three missing digits are all odd, how many numbers will I have to call to get the right number? 212- _ _ _ 4? Stephen La Rocque and Penny Nom lui répond.
	Water flowing from a cone to a cylinder		2009-01-23
		Ray pose la question : Water is passing through a conical filter 24 cm deep and 16 cm across the top into a cylindrical container of radius 6 cm. At what rate is the level of water in the cylinder rising when the depth of the water in the filter is 12 cm its level and is falling at the rate of 1 cm/min? Harley Weston lui répond.
	The volume of a cone		2009-01-13
		ab pose la question : the area of the base of the cone shown is 314 cm and it's height is 12 cam what is the volume? Penny Nom lui répond.
	The top half of a cone vs. the bottom half of the same cone		2009-01-08
		Tammy pose la question : What is the ratio of the volume of the top half of a cone vs. the bottom half of the same cone? Is it seven times larger, or four times larger? and is the ratio consistent regardless of the size of the cone opening? Penny Nom lui répond.
	50 coins with a value of $1.00		2009-01-08
		Ana pose la question : you have 50 coins which have a total value of 1.00. What are the coins and how many of each do you have? Robert Dawson lui répond.
	The radius of a cone		2009-01-02
		kalpaj pose la question : A conical funnel holds 100ml. If the height of the funnel is 10 cm, determine its radius, to the nearest tenth of a centimeter. Penny Nom lui répond.
	What is i^i?		2008-12-27
		randomness pose la question : i have learnt that 'i' is square root of -1. What is then i^i ? It baffles my maths teacher... Robert Dawson and Penny Nom lui répond.
	Solving an equation for D		2008-12-18
		Darrin pose la question : In his finance class, my son is being asked to take the following equation and solve for "D": 1 / [1 - (1 + D/12)^T] = (1 / D) * [((12*B) / (P*T)) + Y + ((12N * Z) / (360T))] - [(12Z) / (360T)] * F Robert Dawson lui répond.
	The 2 rightmost digits		2008-12-18
		Peter pose la question : Is there a pattern for the 2 rightmost digits of a power? For example, one problem for a math competition was what are the 2 rightmost digits of 3^1993? Robert Dawson and Victoria West lui répond.
	The nth power		2008-12-12
		Kellie pose la question : I am taking a 9th grade course yet im in 7th grade. I do not understand the nth power and i have no clue what it is. could you explain to me what it is? Robert Dawson lui répond.
	Ratio of Volumes of a Cylinder and a Cone		2008-12-06
		rohan pose la question : A CYLINDER IS WITHIN THE CUBE TOUCHING ALL THE VERTICALS FACES . A CONE IS INSIDE THE CYLINDER.IF THEIR HEIGHT ARE SAME WITH SAME BASE ,FIND THE RATIO OF THEIR VOLUMES. Janice Cotcher lui répond.
	Three one-digit numbers		2008-12-06
		JOANNA pose la question : Could you please tell me what Adding Three One-Digit Numbers += 15 1-9 without using any number twice Penny Nom lui répond.
	The volume of a cone		2008-12-03
		Tamriko pose la question : Hi! Help me, please to solve the following problem: The diameter of an ice-cream cone is 6 cm and the slant height is 10 cm. What volume of ice-cream would fit inside the cone? Thanks! Penny lui répond.
	Related rates		2008-11-26
		Lyudmyla pose la question : How fast is the volume of a cone increasing when the radius of its base is 2 cm and growing at a rate of 0.4 cm/s, and its height is 5 cm and growing at a rate of 0.1 cm/s? Harley Weston lui répond.
	How do you solve " (x-4)^3/2 = -6 "?		2008-11-17
		Jim pose la question : How do you solve " (x-4)^3/2 = -6 " ? Penny Nom lui répond.
	The volume of a cyclone		2008-11-13
		Dianna pose la question : I need to figure the cubic yards of a cyclone. 144" down to 48" 60" high Penny Nom lui répond.
	A conical funnel		2008-11-12
		Rachael pose la question : Hello, I am a 10th grader in AP Calc, and can not figure out this question: Water is running out of a conical funnel at the rate of 1 inch^3/sec. If the radius of the base of the funnel is 4 in. and the altitude is 8 in., find the rate at which the water level is dropping when it is 2 in. from the top. Harley Weston lui répond.
	The prime factorization of one billion		2008-11-02
		Alta pose la question : The prime factorization of 1000 is 2 cubed times 5 cubed. How do you write the prime factorization of one billion using exponents? Penny Nom lui répond.
	Equations with the variable in the exponent		2008-10-28
		fari pose la question : Solve for x 5 * 4^x-3=40 5^x=25^(x+8) Penny Nom lui répond.
	Water is leaking from a conical tank		2008-10-24
		Kimberly pose la question : Water is leaking out of an inverted conical tank at a rate of 12000 cm3/min at the same time that water is being pumped into the tank at a constant rate. The tank has height 6 m and the diameter at the top is 4 m. If the water level is rising at a rate of 20 cm/min when the height of the water is 2 m, find the rate at which water is being pumped into the tank. Stephen La Rocque lui répond.
	Put in lowest terms 6a^2c/8ab		2008-10-24
		hana pose la question : put in lowest terms 6a^2c/8ab Stephen La Rocque lui répond.
	Exponential form		2008-10-21
		layla pose la question : how we wite 256 in exponential form Harley Weston lui répond.
	The volume of a slice from a wedge		2008-10-16
		Jeff pose la question : If I have a wedge shaped object (ie, a triangle of non-specific type extruded along a length) and it is sliced from the two-corner base at one end to the one-point tip at the other, what is the volume of the upper (smaller) part as a percentage of the whole? I hope I have explained it clearly enough. Thanks. Harley Weston lui répond.
	The rate of change of the volume of a cone		2008-10-15
		Barbara pose la question : Suppose that both the radius r and height h of a circular cone change at a rate of 2 cm/s. How fast is the volume of the cone increasing when r = 10 and h = 20? Harley Weston lui répond.
	A cone shaped pile		2008-10-10
		Nadine pose la question : I have a pile of wheat in the shape of a cone. I would like to know how much wheat I have. I have found the equation "V=1/3 pie r squared h" , but it dosn't work! The pile is 7 feet high, diameter is 50 feet, circumference is 185 feet. I also measured the slope 19feet. (Probably not needed) You need to know that wheat weighs 60 pounds per bushel, and I would like to know how many bushels I have. Even if I could receive the # of Volume Bushels, I could convert that. Can you help me?? Stephen La Rocque lui répond.
	Logs and exponentials		2008-10-06
		Charles pose la question : I seem to remember you could solve exponential problems using natural logs quite simply without calculators, such as the fifth root of 400 or 33 to the 4th power. All you did was convert the number to its natural log and then just divide by 5 or multiply by 4 and then convert it back. I just remember how to do this. Thanks. Harley Weston lui répond.
	4^x = 2^x + 12 solve for x		2008-10-02
		Dave pose la question : 4^x = 2^x + 12 solve for x. Harley Weston lui répond.
	Exponential form		2008-09-25
		Pat pose la question : The African bush elephant is the largest land animal and weighs about 8 tons. Write this amount in exponential form. Penny Nom lui répond.
	Exponential form		2008-09-16
		shawn pose la question : Write the product in exponential form: 5.5.5.2 Penny Nom lui répond.
	What is the derivative of (2^sinx)/(logbase4(2x+1))?		2008-09-16
		Jesse pose la question : What is the derivative of (2^sinx)/(logbase4(2x+1)) Harley Weston lui répond.
	Solving Exponential Equations Using Logarithms		2008-09-15
		Todd pose la question : 7(6^x)=6e^-2x Janice Cotcher lui répond.
	An ice cream cone		2008-09-09
		olivia pose la question : Judy has a sugar cone and wants to know how many cubic inches of ice cream it will hold if it is filled completely to the top of the cone and no more. The cone has a height of 4.5 inches and a radius of 1.5 inches. Penny Nom lui répond.
	The biggest right circular cone that can be inscribed in a sphere		2008-09-08
		astrogirl pose la question : find the volume of the biggest right circular cone that can be inscribed in a sphere of radius a=3 Harley Weston lui répond.
	An exclusion zone around a triangle		2008-09-07
		Awrongo pose la question : A long time ago Mr Gibson found an island shaped as a triangle with three straight shores of length 3 km,4 km and 5 km. He declared an 'exclusion zone' around his island and forbade anyone to come within 1 km of his shore. What was the area of his exclusion zone? Stephen La Rocque and Penny Nom lui répond.
	2^x = 1,000,000		2008-09-06
		Peter pose la question : How do I solve for "x" in the following equation: "2 to the power of x = 1,000,000" ? Penny Nom lui répond.
	The square root of 2 the the X power		2008-09-05
		Peter pose la question : How can I re-write the expression: The square root of 2 the the X power? Penny Nom lui répond.
	1,679,616 as a power of 6		2008-09-03
		Denise pose la question : express 1,679,616 in exponential form as a power of 6. Penny Nom lui répond.
	A cardboard spaceship		2008-08-31
		Lee pose la question : I am building a "cardboard" spaceship for my 4 year old grandson. The cabin is a dishwasher box with a cool control panel and elipse shaped windows. I really need help designing the cone or"nosecone". The diameter of the base is 26", 24" tall, with a 6" diameter opening at the top. Thank you for the help! Lee Penny Nom lui répond.
	Solve e^x + e^(x+1) = 250		2008-08-25
		Laura pose la question : "solve this equation correct to three decimals" e^x + e^x+1= 250 Penny Nom lui répond.
	BEDMAS		2008-08-12
		Rebecca pose la question : I have 3 questions. 1) I don't really understand BEDMAS.Im going in to the 6th grade and im kind of nervis about it.? 2)When you're doing BEDMAS what does the small 3 or 2 above the other numerals mean? 3)How would you answer this:5+2 x 9 - 9 x 12= ?? Janice Cotcher lui répond.
	A cone on the end of a cylider		2008-08-05
		Jerry pose la question : Hi. I need to make a plastic cone to fit on the end of a cylinder. The only dimension i have is the diameter of the cylinder. This 553 mm. I need to find the formulae required and how much material will be required. Penny Nom lui répond.
	Find the product of 2^35 and 5^38 in sci. notation.		2008-08-03
		Peter pose la question : I am preparing for a competition and a lot of the non-calculator problems are like find the product of 2^35 and 5^38 in sci. notation. How would you do that? Penny Nom lui répond.
	Right Sided Limit of an Exponential Function		2008-07-29
		joseph pose la question : I am trying to find the limit as X approaches 0 from the positive side of x to the sin of x which look like this lim x^sinx x->0+ Harley Weston lui répond.
	The number of digits in a really big exponent		2008-07-21
		Pete pose la question : how would you find the number of digits in a really big exponent without a calculator? Penny Nom lui répond.
	A cube inscribed in a right cone		2008-07-16
		Steven pose la question : A cube is inscribe in a right cone of radius 2 and height 5. What is the volume of the cone? Victoria West and Harley Weston lui répond.
	Making Change		2008-07-09
		Peter pose la question : In how many ways can you make 30 cents with quarters, nickels, and pennies? Penny lui répond.
	Exponential form		2008-07-03
		Kent pose la question : How to write 8 365 005 106 in expanded and exponential form? May I request you also to explane how does it solve. Stephen La Rocque lui répond.
	Units digit		2008-07-02
		seemachauhan pose la question : How to find unit digit of various numbers and what are unit digits? Penny Nom lui répond.
	Some phone numbers		2008-06-30
		star pose la question : What do you think the probability of finding the last 3 digits of a telephone number if the 1st digit begins with 7? Janice Cotcher and Harley Weston lui répond.
	Write log_2 (1/8) = -3 in exponential form		2008-06-27
		Jaime pose la question : how do you write log2 (1/8) = -3 in exponential form? the 1/8 is a fraction and the 2 is a base of 2 Penny Nom lui répond.
	How many face does a cone have?		2008-06-21
		Vanessa pose la question : How many face does a cone have? Harley Weston lui répond.
	(2b^-1c^3)^3 (b^4c^-2)^0		2008-06-05
		ashley pose la question : Simplify this expression (2b^-1c^3)^3 (b^4c^-2)^0 Please help me. I not sure about the zero on the outside of parentheses. Penny Nom lui répond.
	Liquid is being pored into the top of a funnel		2008-05-25
		Stella pose la question : Liquid is being pored into the top of a funnel at a steady rate of 200cm^3/s. The funnel is in the shape of an inverted right circular cone with a radius equal to its height. It has a small hole in the bottom where the liquid is flowing out at a rate of 20cm^3/s. How fast is the height of the liquid changing when the liquid in the funnel is 15cm deep? At the instance when the height of the liquid is 25cm, the funnel becomes clogged at the bottom and no mo re liquid flows out. How fast does the height of the liquid change just after this occurs? Stephen La Rocque lui répond.
	The cube of -2y in exponential form		2008-05-19
		Xiu pose la question : I dont get this question.. Write "the cube of -2y" in exponential form. I know the answer is -(2y)^2 but i really don't understand why. Can you explain how to do this whole problem for me? Leeanne Boehm lui répond.
	The inverse of a function		2008-05-03
		keith pose la question : please help me find the inverse of this function: h(t) = 2 + 4 ln(1-5t) Stephen La Rocque lui répond.
	The volume of a stone		2008-04-17
		sara pose la question : a rectangular tank 30 cm long and 20 cm wide is filled with water to a depth of 8 cm. When a stone was put in, the water level rose to 11 cm. Find the volume of the stone. (Assume that the stone is completely under water.) Penny Nom lui répond.
	A truncated cone		2008-04-11
		jason pose la question : i need to know how to figure the cubic feet of a cone that the top is 72" wide the bottom is 25" wide and it is 48" tall. is there a specific formula for this? Penny Nom lui répond.
	1-(1-P)^75=0.05		2008-04-05
		Amy pose la question : 1-(1-P)^75=0.05 Stephen La Rocque and Penny Nom lui répond.
	The exponential form of x radical y to the third power		2008-03-30
		Jennifer pose la question : what is the exponential for of x radical y to the third power Penny Nom lui répond.
	Exponential form		2008-02-16
		annna pose la question : i already got the answer for what is the prime factorization of 648 which is 2x2x2x3x3x3x3 but how do i write that answer in exponential form? Penny Nom lui répond.
	Growth factor and growth rate		2008-02-13
		william pose la question : what is the difference between growth factor and growth rate? Stephen La Rocque and Harley Weston lui répond.
	Why is the number 1 neither prime nor composite?		2008-02-07
		ronni pose la question : why is the number 1 neither prime nor composite? Harley Weston lui répond.
	Negative Exponents		2008-01-29
		Bill pose la question : t to the negative fourth power inside parenthesis to the ninth power OVER t to the negative fourth power inside parenthesis to the third power I am confused on how to start the problem. What I did was invert the Ts to make them positive and I then multiplied the powers. I am not sure if this is the correct process. Harley Weston lui répond.
	Belled-out pier		2008-01-28
		Gina pose la question : I need to know how to find the total yards needed to fill a concrete pier that is 54"/ 108" and 26' deep. That is...54" @ the top of the pier belled to 108" @ the bottom...26' deep. Stephen La Rocque lui répond.
	x^3 y^(-6)		2008-01-24
		Bill pose la question : I need help completing this negative exponents problem: x to the power of 3 multiplied by y to the power of negative 6. What would the process to solving this problem be? Penny Nom lui répond.
	How do I write the following in exponential form?		2008-01-09
		Mandy pose la question : How do I write the following in exponential form? ( square root of a^-2 b)^5 Penny Nom lui répond.
	Exponential form		2008-01-08
		liam pose la question : i was wondering if anyone could help me with this question and tell me how and what the did; exponetial form of 4 326 180 501 Stephen La Rocque lui répond.
	Multiplying exponentials		2008-01-02
		jessie pose la question : Can you please explain how to put x^3 y^2 times x^1 y^3 in simplest exponential form? Penny Nom lui répond.
	Radicals in exponential form		2008-01-02
		Andre pose la question : The title of the section in my textbook is to write each of the following radicals in exponential form. My question is how do u write the squareroot of 10 in exponential form? Penny Nom lui répond.
	Smallest cone containing a 4cm radius inscribed sphere		2007-12-19
		Eva pose la question : A sphere with a radius of 4cm is inscribed into a cone. Find the minimum volume of the cone. Stephen La Rocque lui répond.
	Exponential form		2007-11-30
		Sasha pose la question : How do I write the number 127398 in exponential for? Penny Nom lui répond.
	Exponential Growth		2007-11-19
		lisa pose la question : Hi i am a 8th grader who is learning about algebra and we are having test on exponent and i don't really get it i asked my teacher and she told me i should pay more attention so i want to know what exponential Growth means Penny Nom lui répond.
	The vertex of a cone		2007-11-18
		miriam pose la question : how many verticies does a cone have Penny Nom lui répond.
	Exponential form		2007-11-16
		ashley pose la question : write a sentence for exponential form. Penny Nom lui répond.
	Cones and pyramids		2007-11-10
		Eric pose la question : I have a question regrading the differences between a cone and a pyramid. In my son's Maths workbook, a cone is always referred to as a pyramid, which confuses me very much. I understand that a pyramid is a special case of a cone and therefore you can refer a pyramid as a cone but not the other way around. Am I correct? Harley Weston lui répond.
	Distributing prize money		2007-11-08
		Barbara pose la question : Question from Barbara, a student: In writing competition, the first place winner receives 1/2 of the prize money. The second runner up receives 1/4 of what the winner won. what was the total amount of prize mone distributed if the winner receives $6,000? Penny Nom lui répond.
	Why is the number 1 neither prime nor composite?		2007-11-08
		amarilis pose la question : why is the number 1 neither prime nor composite? Penny Nom lui répond.
	The sum of the ones		2007-10-29
		Hangsun pose la question : When 2 two digit numbers are added what is the greatest possible sum of the ones? Penny Nom lui répond.
	A graph with 100 vertices		2007-10-24
		amarjeet pose la question : let g be a graph with 100 vertices numbered 1 to 100. Two vertices i and j are adjacent only if i-j=8 or i-j=12. The number of connected components in g are: 1. 8 2. 12 3. 4 4. 25 Penny Nom and Victoria West lui répond.
	Stanley Cup costume (truncated cone pattern)		2007-10-19
		Janet pose la question : You hockey fans will love this question. I am making a Stanley Cup halloween costume and need a flat pattern for the bowl portion. I believe a truncated cone will work nicely. Base circumference needs to be 32" (10.19 diameter). Top circumference needs to be 44" (14 diameter). It needs to be 8" high. Thanks for your help. Stephen La Rocque lui répond.
	Surface area of an open-ended cone		2007-10-16
		Lorne pose la question : What is the surface area of an open ended cone? Measured at 10' high, 16' diameter on the bottom and 2' diameter at the top. Stephen La Rocque lui répond.
	Doubling every day		2007-10-07
		Jerrie pose la question : Patti saved pennies for 10 days. The first day she saved 1 cent. Every day after that she saved twice as much as the day before. How much money did Patti save altogether? Stephen La Rocque lui répond.
	how do you get 9^5-9^4/8 to equal 9^4		2007-10-01
		nathen pose la question : how do you get 9^5-9^4/8 to equal 9^4 Stephen La Rocque lui répond.
	Two power expressions		2007-09-29
		James pose la question : find the values for a and b (a*x to the power of -1*y)(-1/2*x*y to the power of b)=6*y to the power of -6 please show me how to do this. Can I begin by taking out the powers? Leeanne Boehm lui répond.
	Size of a sphere fitting inside a cone		2007-09-27
		Juan pose la question : I am supposed to find the largest sphere that will fit into a cone. I am assuming is a maximizing problem, but I am not sure of what relation (between a cone and a sphere) to use. Penny Nom and Stephen La Rocque lui répond.
	Exponents		2007-09-26
		Calvin pose la question : Exponential form 5 3exponent x 5 4exponent divide 5 2exponent Stephen La Rocque lui répond.
	Exponential regression		2007-09-24
		Anonymous pose la question : I need help in finding this. Find a formula for exponential regression. Determine how to calculate a and b in the formula. Y = ba^x where y is as a function of x. Penny Nom lui répond.
	Large exponents		2007-09-24
		Kira pose la question : Is there an easy way to calculate a number with a large exponent? For example, 2(10)^35. Stephen La Rocque and Victoria West lui répond.
	12 men can complete a work in 8 days		2007-09-23
		farah pose la question : 12 men can complete a work in 8 days. 3 days after they started working, 3 more men joined. In how many days will all of them together complete the remaining work. Stephen La Rocque lui répond.
	Solving an equation with fractions		2007-09-20
		Len pose la question : I am having a brain cramp or maybe I just forgot some basic math, but I am having trouble solving for "r" in your truncated cone example where r/(r+w)=r/R or r/(r+282)=911/1728. Could you refresh my memory by showing the steps to solve for "r"? Harley Weston lui répond.
	Tens and ones		2007-09-16
		julia pose la question : My son has come home with a math question "what i know about 10s and 1s" we're totally stumped any information you can provide would be greatly appreciated Harley Weston lui répond.
	The contents of a silo		2007-09-14
		Steven pose la question : I need to know how to find the weight of the contents of a silo that is 4 feet across and is funnel shaped at 60 degrees Penny Nom lui répond.
	Exponential form		2007-09-12
		Ericha pose la question : How do I express 1,679,616 in exponential form as a power of 6 using a calculator? Stepehe La Rocque and Penny Nom lui répond.
	Prime factors in exponential form		2007-09-06
		Michelle pose la question : how would you write this: factor 48 as a product of primes written in exponential form Stephen La Rocque lui répond.
	Exponential form		2007-09-05
		jeanette pose la question : the African bush elephant is the largest animal and weighs 8 tons. write this amount in exponential form. Stephen la Rocque and Penny Nom lui répond.
	X^3 = 3/10		2007-09-05
		ioana pose la question : If we have X at power 3 that result equally with 3/10 haw much X is ?? Penny Nom lui répond.
	Exponential form		2007-08-31
		Victoria pose la question : The cost of each space shuttle is about $10,000,000. Write this amount in exponential form. Stephen La Rocque lui répond.
	Exponential form		2007-08-29
		Emily pose la question : Write the Exponential Form of 125 x 25 and 81 x 27. Stephen La Rocque lui répond.
	A truncated cone		2007-08-24
		JUAN pose la question : i need to create a template for a cone that has a 4 " opening at top, a 14" base and 12" tall.Can u tell me how to achieve this ? u have similar problems but when i try to do it , is not coming up right , please help.. Harley Weston lui répond.
	How much would 3 yards of stone cost?		2007-08-21
		Sue pose la question : If it costs $13.50 a ton of 3/4" stone, how much would 3 yards of stone cost? Steve La Rocque lui répond.
	Logs and exponentials		2007-07-31
		Marsia pose la question : Explain how the functions of exponents and logarithms relate to each other. Penny Nom lui répond.
	A cone with two fruits		2007-07-26
		Meg pose la question : You have a cone shaped bag. At the bottom of the bag is an orange with radius r. On top of the orange is a melon with radius R. It touches the orange and fits snugly in the bag, touching it in a ring around the orange. Its top is at the same level as the top of the bag. What is the radius of the cone? Stephen La Rocque lui répond.
	A one to one function		2007-07-24
		Marsia pose la question : Explain what it means for a function to be one to one. Harley Weston lui répond.
	Calculating sales taxes		2007-07-11
		Tonya pose la question : Hi, Im having trouble calculating GST and PST I know that in this province, GST is 6% and PST is 7%, I have a total of $275, and GST is 0.06, and PST is 0.07, so do I add those two and multiply them by the total, $275? Stephen La Rocque lui répond.
	The lock code for my phone		2007-06-30
		Amanda pose la question : okay so i forgot my lock code for my phone its four digits but i know it doesn't have a 1 or a 0 in it so it has to be from numbers 2 to 9 i need to know all the four digit combinations asap cause i cant use my phone till can someone please help me Amanda Penny Nom lui répond.
	If A is 1 and Z is 26		2007-06-29
		Sue pose la question : If A is 1 and Z is 26 is there a word that when you multiply all the numbers instead of letters adds up to a million? Chris Fisher and Harley Weston lui répond.
	Exponential form: x^y		2007-06-22
		Kishor pose la question : whats the easy way to calculate X raised to Y where y is much greater than x. Stephen La Rocque lui répond.
	Volumes of cones and cylinders		2007-05-29
		George pose la question : 1. The volume of a cylinder is 1353cm3 A) What is the volume of a cone with the same radius as the cylinder but double the hieght of cylinder? B) What is the volume of a cone with the same height as the cylinder but with three times its radius? Steve La Rocque and Walter Whiteley lui répond.
	Solve for I		2007-05-23
		Mark pose la question : A=4.9(B)*C^(.00925(D-.542))* E^(-.015(D))*E^(-.013(F))* (G/B)^(-.00825(D-.225))* H^-.877*(I/B)^.511*(J/B)^.319 Stephen La Rocque lui répond.
	Constant rate of sand falling in a cone		2007-05-20
		Nhi pose la question : Sand is falling into a conical pile . After 5 min. the pile has radius 24 and height 26 . After 7 min. tell how far the point c. is from the top of the cone (A). Stephen La Rocque lui répond.
	Lateral area of a right cone		2007-05-17
		Crystal pose la question : In my homework the question says the lateral area of a right cone is 226.08 cm cubed. the slant hieght is 12 cm. Find the total surface area. How do I do that? Stephen La Rocque lui répond.
	Maximizing the volume of a cone given the slant length		2007-05-14
		Christina pose la question : A coffee filter for a new coffee maker is to be designed using a conical filter. The filter is to be made from a circle of radius 10cm with a sector cut from it such that the volume of coffee held in the filter is maximised. Determine the dimensions of the filter such that the volume is maximised. Stephen La Rocque and Kerstin Voigt lui répond.
	Prisoners		2007-05-12
		Ryan pose la question : Last monday, the county jail had 200 prisoners. Of these, 130 were accused of felonies, and 121 were accused of misdemeanors. How many prisoners were accused of both a felony and a misdemeanor? Stephen La Rocque lui répond.
	Exponents and geometry		2007-05-12
		Cynthia pose la question : Hi is (x^6)(x^4)1/2 = 5 And How does 1/2(3.14)(4.1) =26.3917 Penny Nom and Stephen La Rocque lui répond.
	Understanding log equations		2007-05-10
		Sean pose la question : The number, N, of people who have heard a rumor spread by mass media at time, t, in days is modelled by N (t) = a / 1+ be^ -kt. If 50 people have heard the rumour initially and 300,000 people hear the rumour eventually, find a and b. If the rumour is initially spreading at the rate of 500 people per day, find k. Penny Nom lui répond.
	Is the point on a cone called a vertex?		2007-05-09
		Felicia pose la question : Does a cone have a vertice? My teacher says that a vertice can only be made if two or more edges join up at an angle, so what do you call a point on a cone? Walter Whiteley lui répond.
	Slicing a double-napped cone with a plane		2007-05-07
		Andrew pose la question : I am writing a paper about creating parallel lines by slicing a double-napped cone with a plane. I have found out how it can be shown by algebra that the equations for parallel lines are generated from the degenerate case of a second degree polynomial in two variables, but I have yet to find a source with a visual representation of this case. Do you know if it exists? Chris Fisher lui répond.
	The radius of a cone		2007-05-07
		Braden pose la question : i need to find the surface area but i only have the slant height and the height i need the radius how do i find it? Penny Nom lui répond.
	Maximize the volume of a cone		2007-04-27
		ashley pose la question : hello, I've been stumped for hours on this problem and can't quite figure it out. The question is: A tepee is a cone-shaped shelter with no bottom. Suppose you have 200 square feet of canvas (shaped however you like) to make a tepee. Use calculus to find the height and radius of such a tepee that encloses the biggest volume. Can you help?? Stephen La Rocque and Penny Nom lui répond.
	What is the square root of 729 to the third power?		2007-04-25
		Tori pose la question : What is the square root of 729 to the third power? Penny Nom lui répond.
	Exponential form		2007-04-16
		Cassia pose la question : I was just wondering, how do you write the squared root of 7x(to the 5th) in exponential form? If you could help explain that I'd be grateful. Thanks Brennan Yaremko lui répond.
	How do i form a paper cone		2007-04-14
		Sash pose la question : How do i form a paper cone with the height of 25 cm, the slant height of 25.8 cm, and the radius of 6.2 cm? Stephen La Rocque lui répond.
	3 divided by 3 to it's fifth root		2007-04-06
		Annie pose la question : How do I transform the equation 3 divided by 3 to it's fifth root to simple radical form (getting the radical out of the denominator)? Penny Nom lui répond.
	A "claw setting" for a gemstone		2007-03-30
		Stephanie pose la question : I'm trying to make a cone out of a flat sheet of metal for a "claw setting" for a gemstone. The cone must be 8mm wide at the top and 11mm long tapering to a point. But because the prongs must be cut out of the top the cone should not start to taper for a length of 3mm from that top 8mm. The 3mm prong is then bent over the 8mm stone. That probably doesn't make enough sense. But I don't know how to explain it. If it helps a claw setting is the very common prong setting for engagement rings or earrings. Please help as soon as possible as this is a commissioned piece for someone and I'm running out of time. I don't remember any math really from high school so please make the instructions really easy to follow. Thank You!! Penny Nom lui répond.
	A one pass calculation of standard deviation		2007-03-19
		Murtaza pose la question : Hi I searched the listings but couldn't find what i am looking for. I have a dataset and i am allowed only 1 pass through it. At the end of this pass i must have the mean and standard deviation. Calculating the mean is easy as also demonstrated in your listings. I think the same can be done for standard deviation as well. But the doubt that i have is this :- Will the calculated standard deviation be sequence dependent ? i.e. if i change the order in which the data items enter the system, will the std deviation also change ?? Thanks in advance Murtaza Penny Nom lui répond.
	Negative exponents		2007-03-14
		cookie pose la question : (2.50x^-3) - (3.0x^-1) please show me how to do this. The answer in the book is 7.5 x ^-4 Penny Nom lui répond.
	exponential decay of Carbon-14		2007-03-12
		Christine pose la question : How do I set up the exponential decay formula for Carbon 14 with an initial amount of 1500 grams. Stephen La Rocque lui répond.
	A truncated cone		2007-03-10
		Russell pose la question : Hello, I have attempted to use two of your answers already given and had no real success. This young lady is making a cat food dispenser using a truncated cone. The top of the cone as a diameter of 5 inches with a height of 6 1/2 inches and diameter of 3 inches for the bottom. Could you please map out a solution for the both of us to understand? Thank you so much for your time and for this wonderful service. Russell Penny Nom lui répond.
	The volume of a styrofoam cup		2007-03-08
		leanna pose la question : find the volume of a styrofoam cup if the diameter of the top is three inches, the diameter of the base is 2 inches, and the height is 4 inches. Penny Nom lui répond.
	A metal shroud for a outdoor fireplace		2007-03-06
		Arnold pose la question : I am making a metal shroud for a outdoor fireplace, it is basically a lampshade type pattern,like the bottom of a cone.The top has to be 6 inches to fit the 6 inch stovepipe,and the bottom will be a 24 inch circle. the sides will be 18 inches in length.With the cost of the sheet metal,I can only afford to cut this out once,can you help me with the pattern ? Penny Nom lui répond.
	A long narrow cone		2007-03-04
		Amy pose la question : I am an art student making a piece of jewelry out of a flat metal sheet. I'm trying to make a long narrow cone that's roughly 3 1/4" long and just slightly under 1" wide at the base. Since I'm no math wiz, I'm having a really hard time. Please help. Penny Nom lui répond.
	The lateral area of a cone		2007-02-27
		Michael pose la question : Ive seen the other question about surface areas. I still don't understand the lateral area. In my math book, it has (pi * r * L) as the equation, r = radius and L = height of the cone. This is 8th grade math. Thanks. Penny Nom lui répond.
	The radius of a cone		2007-02-26
		lee pose la question : hi i have a cone to calculate, the height and radius are equal and the slant height is 0.5m the total surface area is 15m sq i need to calculate the radius of the cone Note : this will lead to a quadratic equation could somebody have a look please Thanks Lee Penny Nom lui répond.
	The volume of a cone		2007-02-24
		SAFDAR pose la question : How to derive the formula for volume of cone? Penny Nom lui répond.
	Surface Area of a cone		2007-02-19
		Cari pose la question : I am doing a math project. I am very confused on how to find the surface area of a cone. I have looked at other equtions but i still don't understand. How do you find the surface area of a cone that has a 15cm length and a 3.5cm radius? Penny Nom lui répond.
	Exponential form of complex numbers		2007-02-12
		Austin pose la question : When dealing with imaginary numbers in engineering, I am having trouble getting things into the exponential form. The equation is -1+i now I do know that re^(theta)i = r*cos(theta) + r*i*sin(theta). Just not quite understanding the order of operations. Thanks Penny Nom lui répond.
	Large exponents		2007-02-09
		Nick pose la question : I am trying to figure out an extremely large number. It relates to the estimated number of bacterial divisions in 12775 generations of bacteria. The problem I need to solve is: 2^12775 or 2 to the power of 12,775. Stephen La Rocque and Penny Nom lui répond.
	Dividing money unequally		2007-02-06
		Linda pose la question : I have a total of $13,826.48. It is to be divided by 15 kids - 2 of the kids only get half of what the other 13 do - how much do the 13 get and how much does the 2 get? Thanks Haley Ess and Steve La Rocque lui répond.
	The volume of a cone		2007-01-31
		ajay pose la question : WHY VOLUME OF CONE IS ONE THIRD OF THE VOLUME OF CYLINDER? Penny Nom lui répond.
	Take $.01 and double it every day for 30 days.		2007-01-26
		Pat pose la question : Take $.01 and double it every day for 30 days. How many dollars would you have? Stephen La Rocque lui répond.
	Is -2^2 = -4 or 4?		2007-01-23
		Joan pose la question : Is -2 squared, when written without parentheses around the -2, -4 or could this correctly be solved by squaring -2 (-2 x -2) for an answer of 4? Or, to correctly get an answer of 4, would the problem have to read (-2) squared? Stephen La Rocque lui répond.
	Simplify (2x)^4 (1/2x^3)^2		2007-01-21
		Sarah pose la question : Simplify (2x)^4 (1/2x^3)^2 Penny Nom lui répond.
	Negative exponents		2007-01-11
		Bob pose la question : I have to write this "Y-7" (but the -7 is an exponent) as a positive exponent. How? Penny Nom lui répond.
	Phone number combinations		2007-01-04
		Efrain pose la question : i want to know the different combinations for numbers 7 digits the number are 0-9 its basically the different phone number combinations example: 555-6689 or 565-4896 i just want to know for many different combinations are there.... Penny Nom lui répond.
	Two cones		2006-12-30
		Cassie pose la question : A cone of radius 6 and height 12 and a different cone of radius 8 and height 12 intersect as shown in the figure below, where the vertex of one matches with the center of the base of the other. Find the volume of the intersection of the two cones (in exact form). Penny Nom lui répond.
	Place value, coins and money		2006-12-12
		Emily pose la question : I was wondering what the best way would be to teach place value using coins and money. I have used base ten blocks already and am looking for a way to integrate money, perhaps on a place value chart and perhaps using decimals. Diane Hanson lui répond.
	Wheat is poured on a conical pile		2006-11-17
		Rachel pose la question : wheat is poured through a chute at the rate of 10 cubic feet per minute and falls in a conical pile whose bottom radius is always half the altitude. how fast will the circumference of the base be increasing when the pile is 8 feet high? Penny Nom lui répond.
	Motorcycle expansion chamber design		2006-11-14
		David pose la question : I'm interested in calculating cone information regarding motorcycle expansion chamber design for example. I guess it's called a truncated cone, from what I've read so far. If I know the center line height, small radius, and large radius of a truncated cone then, how can I calculate the angle (included angle?) the cone forms? I'd like to know the variations of the formula so I can calculate for angle, or length, or one of the diameters if I know the other two measurements. Stephen La Rocque lui répond.
	After how many hours will the class have been notified?		2006-11-10
		Brittany pose la question : A college math class consists of 32 students. On Monday at 9:00 a.m., the teacher tells one student to notify other students that the test scheduled for Wednesday at 9:00 a.m. has been cancelled. The model for the number of students in the class who will have heard this information after t hours is N=32-32e^-0.02t. After how many hours will the class have been notified? Stephen La Rocque lui répond.
	Zero as an exponent		2006-10-28
		Don pose la question : Any real number (except zero) to the zero power equals 1 correct? Question: If for example x to the zero power equals 1 What is -x to the zero power equal to? What is -(x) to the zero power equal to? Penny Nom lui répond.
	Putting things in exponent form		2006-10-18
		Sheila pose la question : Write in exponential form 2 sq. root a with an exponent 5. I do not understand on how to do it. Stephen La Rocque lui répond.
	A specific 8 digit number in a 11 digit mobile phone number		2006-10-13
		James pose la question : I need to know the chance of finding a specific 8 digit number in a 11 digit mobile phone number. the number must be 29571596 and the 11 digit phone number must end in this. All numbers 0-9 are used in a mobile number but the first 2 digits will always be 07. Is there a way to work this out?? Stephen La Rocque lui répond.
	Constructing a cone		2006-09-20
		Suresh pose la question : i want to know the required size of plate for cone rolling,sizes are 2950mm is bottom dia,894 is top dia and 600 is height.I have already read u r answers but i little bit confused ,harely and sue have given useful answers but when i worked both method the required plate size is different. so i like to know which method is easy and correct.and also i like know whether it can be rolled without segment my rolling machine width is 1500. Penny Nom lui répond.
	The radius of a cone		2006-09-08
		Hermanson pose la question : I know the cone is 20 degrees at the top and 80 degrees at the bottom. What is the formula for finding the radius? Stephen La Rocque lui répond.
	A base number raised to the power of 0		2006-08-24
		Sheila pose la question : I'm a 5th grade teacher and need some help with a base number raised to the power of 0 always being 1. My kids asked me why and I told them I'd find out. Penny Nom lui répond.
	How fast is the water level rising		2006-08-12
		Erin pose la question : Water runs into a conical tank at the rate of 9ft3/min. The tank stands point down and has a height of 10 ft. and a base radius of 5 ft. How fast is the water level rising when the water is 6 ft. deep? (V=1/3 pi r2 h). Penny Nom lui répond.
	A problem with exponents		2006-08-09
		A student pose la question : (8a to the negative 2 b cube c to the negative 4/4a squared b to the negative 3 c squared) to the negative 2 Stephen La Rocque lui répond.
	2 to the -5th power		2006-06-19
		Murray pose la question : Is 2 to the -5th power = -32? Penny Nom lui répond.
	Pyramids and cones		2006-06-06
		Melissa pose la question : I was wondering if a cone can be considered a pyramid. Looking at many definitions of pyramids I have read that pyramids come to a common vertex. A cone comes to a vertex. But I also read that pyramids all have triangular faces. In this case a cone would not be considered a pyramid. Am I correct? Chris Fisher lui répond.
	A truncated cone		2006-05-28
		Phil pose la question : Hi, I am an art student and I am trying to make a "truncated cone" (ie: a cone with the top cut off) out of sheet metal. I need to design a template first and am having problems working out the angles. The truncated cone is 250mm high, 550mm wide at the bottom and 290mm wide at the top. Can you help? Stephen La Rocque lui répond.
	I want to calculate 0.00353 to the power 1.3		2006-05-14
		Richard pose la question : I want to calculate 0.00353 to the power 1.3 How do I do it? Stephen La Rocque lui répond.
	Pythagorus and cone dimensions		2006-04-26
		Glynnis pose la question : How do you find the measure of a side that is not the hypotenuse using the Pythagorean Theorem? Also, how do you figure the surface area and volume of a cone when the radius is 5 yards and the height is 8 yards? Stephen La Rocque lui répond.
	What is the surface area of a cone with a hemisphere on top?		2006-04-20
		Jordan pose la question : How do you find the surface area of a cone with a hemisphere on top? The only information I have is the radius of the hemisphere, which is 4, and the total height, which is 7. Stephen La Rocque lui répond.
	Geometric sequence and basic functions (graphs)		2006-04-20
		Marlene pose la question : Which of the basic functions is related to the geometric sequence: Linear, Quadratic, Rational, or Exponential? Can you give me an example of how it would be used in normal life? Stephen La Rocque lui répond.
	Cubic yards of landscape stone		2006-04-19
		Janet pose la question : I need to spread landscape stone around my pool. A landscaper said I need 16 yards. What is the area of a cubic yard if I want the stone 3" deep? Stephen La Rocque lui répond.
	Cone dimensions		2006-04-12
		Mirnela pose la question : The height of a cone is 40 and the radius is 9. How do I find the slant height of this? Also, how do I find the area of the base of a cone if the radius is 7? Stephen La Rocque lui répond.
	An exponential function		2006-04-03
		Meadow pose la question : The graph of an exponential function passes through the points (0,1) and (4,10) find the constant of growth or decay. State the function. Stephen La Rocque lui répond.
	Exponential decay		2006-03-29
		Casey pose la question : Fifty milligrams of a drug was injected into a patient at 6am. The drug is known to be eliminated according to the law of exponential decay. At 8.30am it was determined that 60% of the drug remained in the body. How many milligrams will remain in the body at midday? Penny Nom lui répond.
	The volume of water in a cone		2006-03-21
		Ghulam pose la question : A vessel has the shape of an inverted cone.The radius of the top is 8 cm and the height is 20 cm. Water is poured in to a height of x cm.Show that if the volume of the water is V cubic cm,then V=(4/75)pi x3. Penny Nom lui répond.
	A cone with an oval as base		2006-03-01
		Richard pose la question : I am trying to find the volume of a cone that is not round but oval. Penn Nom lui répond.
	A lampshade shape		2006-02-11
		Rose pose la question : Is there a solid shaped like a lampshade? Or do you just call it the bottom portion of a cone? Penny Nom lui répond.
	-3^4 and (-3)^4		2005-12-17
		Brad pose la question : What is the answer to -34 = ? -(3)4 = ? (-3)4 = ? Penny Nom lui répond.
	A sheet metal cone		2005-12-05
		Laura pose la question : I am an art student and in the process of making a cone out of sheet metal. I am unable to work out the template I need to produce my final cone. The dimensions I have are that the final cone will be 58mm high and will have a diameter of 102mm. Penny Nom lui répond.
	A long distance call		2005-12-05
		A student pose la question : The Small World long distance phone company charges 55cents for the first minute of a long distance call and 23cents for each additional minute. 1. How much would a 10- minute long-distance call cost? 2. If a call costs $4.55. how long did the call last? 3. Write an equation for the total cost, C, of an m-minute long-distance call. Penny Nom lui répond.
	A pattern for a truncated cone		2005-12-04
		Nick pose la question : I need to make a large cone segment. The large end has ID of 57 inches and the small end has ID of 23 inches. The cone is essentially a 45 degree cone (90 degrees at the tip). The sides of the segment are 2 feet long. How do I lay out a flat pattern that will fold into this segment? I need to know radius 1 and radius 2 and the angle the piece must be. Penny Nom lui répond.
	A truncated cone		2005-12-03
		Sonny pose la question : I need to create a template for a cone that has a 2" opening at the top, a 4" base and stands 6" tall. Can you tell me how to achieve this? Penny Nom lui répond.
	Express t as a function of d		2005-11-30
		Matthew pose la question : I have a problem on my homework I cant seem to figure out. Basically it gives me this Linear Regression Equation: ln t=1.5 ln d-0.8954 and it wants be to transform the equation expressing t as a function of d. For some reason I keep getting it wrong. Anyone got an idea of how to do this? Penny Nom lui répond.
	Volumes		2005-10-31
		Diane pose la question : My name is Diane and I am a returning student to a vocational technical school. As a reference point to see what I did/didn't remember from my HS math days, I was sent home with a 75 problem math packet. I was fine until I got to computing: 1. the volume of a cylinder-is it pi r2 h? 2. the volume of a cone- is it pi/3 r2 h? 3. the volume of a sphere- I can't even hazard a guess. Help- my last classroom was 23 years ago, and I've forgotten far too much! Penny Nom lui répond.
	(-2^6) = ?		2005-10-29
		Amy pose la question : My teacher gave me the problem (-26) on our homework. She marked it wrong when I wrote down -64 for an answer. She said the correct answer was 64. Can you explain why it is 64? Penny Nom and Leeanne Boehm lui répond.
	A slump cone		2005-10-27
		Wendy pose la question : we are trying to make a slump cone (used to measure the slump in concrete). It has dimensions of 8" diameter on the bottom, 4" diameter hole on the top and a height of 12". Please help, it is getting frustrating. Penny Nom lui répond.
	A conical hat		2005-10-22
		Manish pose la question : I need to make a conical hat for my daughter's upcoming fancy dress, the circumference of the base(hollow) is 50 cms,the height of the cone is 30 cms,what should be the dimensions of the paper which will make a cone of the beforementioned dimensions? Penny Nom lui répond.
	A cone with vertex (1,1,2)		2005-09-26
		Brandon pose la question : Find the equation of a double cone with vertex (1,1,2) and which intersects the xy plane in a circle of radius 4. Penny Nom lui répond.
	The volume of a pool		2005-07-09
		Douglas pose la question : I have a pond that I need to treat with an anti algae solution which needs to applied based on the volume of water in the pond (in gallons). The rough diameter of the surface of the pond = 25 ft The depth of the pond = 8 ft The pond shape is conical How many gallons of water are in my pond? Penny Nom lui répond.
	Surface areas		2005-05-11
		Jessica pose la question : How can I demonstrate to my high school students the reason for the formulas for the surface area of a prism, right cylinder, and regular pyramid, and right cone? Penny Nom lui répond.
	How much sand is in a pile?		2005-04-16
		Larry pose la question : I was wondering if there is a formula for determining how much sand would be in a pile. I am a student in medical school, and this is a bonus question for a test. I hope you can help me. Harley Weston lui répond.
	Some liquid in a cone		2005-04-03
		Vasuki pose la question : There are 2 right cones, height is X. one of them is filled from the bottom up (round side) = x/2, when you invert the cone and add the same amount of liquid inside the second cone, what is the HEIGHT of the liquid? Penny Nom lui répond.
	2^10 = -1/2^x - 1		2004-12-13
		Randy pose la question : Could you explain to me how the following equation is solved please. 2^10 = -1/2^x - 1 Harley Weston lui répond.
	e = ln(b/a) solve for a		2004-12-01
		Daniel pose la question : I am trying to make "a" the subject of this equation "e = ln(b/a)" but am not sure if i'm doing it right. Any help would be appriciated, Claude Tardif lui répond.
	Construction of a cone		2004-11-20
		John pose la question : I am a builder working on a project where I need to make a cone. It's a right circular cone with 15" base radius and slant angle of 30 degrees. I want to cut it out of flat sheet metal then bring the edges together to form the cone. Is this enough information? Penny Nom lui répond.
	The force of a 5000 tonne lorry		2004-10-27
		Aaron pose la question : A 50 tonne lorry is parked on a slope with a gradient of 4%. Due to the self weight of the lorry, what is the force * acting down the slope * acting normal (at right angles) to the slope Penny Nom lui répond.
	The last digit of a large exponent		2004-10-20
		Landon pose la question : How can one determine the last digit of a large exponent by hand. I have seen several examples of how to do this by breaking it up into smaller exponents, but is there a formula or some common things to look for? Penny Nom lui répond.
	Manipulating exponents		2004-10-17
		A student pose la question : I was wondering if you can describe the steps in getting the solution to the problem below. I have the solution of 5/3 in the back of a book, but I have no idea how that answer was reached. 2raised to the 100th power + 2raised to the 98th power divided by 2raised to the 100th power - 2raised to the 98th power Penny Nom lui répond.
	The volume of a pile of mulch		2004-09-22
		Sam pose la question : Is there a formula to determine the cubic feet of something in a pile. IE- I need to determine the cubic feet of a pile of mulch. The pile comes to a peak, so the length and width decrease as the pile increases. Penny Nom lui répond.
	Zero to the zero		2004-09-18
		Greta pose la question : My name is Greta, and I am a 7th grader and my test is coming up. The question I would like to ask you is why 0 elevated to 0 is unidentified. Penny lui répond.
	Constructing a cone		2004-09-07
		Steve pose la question : I am trying to build crayfish traps; one of the components is a cone shaped entry section. The cone I want to make would be 12" in diameter at the base and 12" in height, from base to peak. I need a formula to calculate the dimensions and a method of transferring the shape onto a flat piece of material. Harley Weston lui répond.
	Water in a cone		2004-07-28
		A student pose la question : A vertically inverted cone( i.e. vertex down) has a radius 7 inches and height 24 inches. Water is filled to one third of its height .Find the ht of water when cone is turned upside down Penny Nom lui répond.
	x = 2^x		2004-07-12
		A student pose la question : If the graphs of y=x and y=2x are drawn on the same set of axes, they will intersect when x is equal to what? (1)1 (2)2 (3)0 (4)They won't intersect. I know the answer is number 4 by graphing which is permitted; however, I would like to know if there is any algebraic way to do this type of problem.If yes, please show me how.Thanks. Penny Nom lui répond.
	Algebraic simplification		2004-03-31
		Chris pose la question : Simplifying Exponents Question b^5d^2/b^3d^8 Penny Nom lui répond.
	Large exponents		2004-03-26
		John pose la question : I have encountered problem with the lack of memory every calculator seems to have. No calculator, on or off the computer, I've found has the amount of memory or writing space to calculate the sums I want to solve. The sums are in great importance for my continued progress. The sums are following: 16777216^1310270, 16777215^995328, 16777215^786432 and 16777215^480000 Claude Tardif lui répond.
	Equivalent sets		2004-03-06
		A student pose la question : If A=(1,2,3,4,...) and B=(5,10,15,20,...), is A equivalent to B. Why or Why not ? Penny Nom lui répond.
	An elliptic cone		2004-02-24
		Ben pose la question : I am building a model for my architecture class. I need to build a elliptic cone out of chipboard and i have no idea how to do this. The cone needs to be 20in tall and the ellipse has a max radius of 10in and a min radius of 8in. So my question is how do i lay this out on a piece of paper so that i can form the cone after i cut it out. Penny Nom lui répond.
	The vertex of a cone		2004-01-29
		Richard pose la question : Please help me explain to my fourth graders as to why a cone has a vertex even though it does not have any straight edges. Chris Fisher lui répond.
	x^x^x^x^...		2004-01-23
		Ryan pose la question : you have a number say x and it is to the power of x which is to the power of x and so on infinite times like x^x^x^x^x^x^x^... i have to figure out what x is so that the answer is always 2 Penny Nom lui répond.
	Making a cone		2003-12-22
		Tracie pose la question : I am working on a craft project at home and I have been given the following information: 16" tall and 13" diameter at base, with 1 and 1/2 " opening at top. Is there a basic formula for creating a cone with this info? Claude Tardif and Penny Nom lui répond.
	Non-euclidean geometry		2003-12-08
		Geoffrey pose la question : How can you use non-euclidean geometry to navigate on a sphere? What geometers did work in this area? Chris Fisher lui répond.
	Non-Euclidean geometry		2003-12-03
		Geoffrey pose la question : What are the applications of Non-Euclidean geometry (especially hyperbolic and spherical)? Walter Whiteley lui répond.
	Notation		2003-09-15
		Kim pose la question : Question: i have a couple of questions 1. write in standard form a)4x2x8 b) 5 to the power of 4 . . . Penny Nom lui répond.
	One million seconds		2003-09-04
		Vince pose la question : If you can write a number each second for one million seconds, how many hours would it take? Penny Nom lui répond.
	One percent of a billion		2003-09-04
		Charles pose la question : What is one percent of one billion? Penny Nom lui répond.
	Why is 5 to the 0 power always 1?		2003-08-24
		Crystal pose la question : Why is 5 to the 0 power always 1? Penny Nom lui répond.
	Water in a cone		2003-08-12
		Adrienne pose la question : Water is poured into a tank in the shape of an inverted right circular cone.ð The height of the tank is 8 m and its radius at the top is 4 m. a. Draw and label a picture to represent this situation.ð (I know how to do this) b. Identify all variable quantities. (h = 8m, r = 4m) c. Find an equation that relates the variable quantities, and reduce the number of variable quantities to two. I was thinking about the equation V = 1/3 pi r2 h, which is the Volume of a cone, but I am stumped as to how I am supposed to "reduce the number of variable quantities to two." Can you point me in the right direction? Penny Nom lui répond.
	A sphere inscribed in a cone		2003-08-10
		A student pose la question : A sphere with radius 5cm is inscribed in a right circular cone 20 cm in height.find (a) the base radius ,volume of the cone (b)volume of the shaded space( to 3 sig fig) Penny Nom lui répond.
	Solve x = y^z for z		2003-06-28
		Nathan pose la question : If x = y^z is there a way to solve for z, if x and y are given, without guessing or already knowing the answer? ie: 64 = 2^z 6 is the obvious value for z. Is there a way I could solve for this variable using a formula, which would also apply when more complex values were substituted for x and y? Penny Nom lui répond.
	5 to the power n		2003-05-28
		Sam pose la question : What is the integer n for which 5 to the n power + 5 to the n power + 5 to the n power + 5 to the n power + 5 to the n power = 5 to the 25th power? Penny Nom lui répond.
	Rules of exponents		2003-05-05
		Carl pose la question : Hi, I am a student who would like to recall how to multiply exponents. Here is such an equation: 6.02569 X 1025 X 5.254 =? Also, adding exponents. Don't I just add subtract the exponents separately? Such as 523 +15-12 =?? Penny Nom lui répond.
	Manipulating exponents		2003-04-21
		Denita pose la question : Rewrite using only positive exponents: (4a^4b^2)^4 * (4a^ -3 bc^2)^ -3 Harley Weston lui répond.
	The vertex of a cone		2003-03-27
		Holly pose la question : I read your response to Callie about whether a cone has a vertex or not. Is it ONLY a vertex if both halves of the cone are together or can one half of the illustration have a vertex? Walter Whiteley lui répond.
	A sequence that converges to e		2003-03-16
		Dane pose la question : Something I noticed fooling around with a calculator about 30 years ago. Considering e = 2.718281828459045.... Using Window's Calculator you will find 1.111 = 2.8531167... 1.01101 = 2.731861... 1.0011001 = 2.71964085... 1.000110001 = 2.71841774... 1.00001100001 = 2.7182954... 1.00000110000011 = 2.178231875... 1.000000110000001 = 2.178219643... There apears to be a pattern. My conjecture is: 1.'infinite number of zeros'11'infinite number of zeros'1 = e. Penny Nom lui répond.
	Arithmitic sequence		2003-02-01
		A student pose la question : I am having problems solving this arithmetic sequence... 1, 5, 10, ___, 50, 1.00, ___, 10.00, ... I believe the answers to be 25 and 5.00 but I can't figure why. Claude Tardif lui répond.
	A function that is onto but not one-to-one where f:N-->N		2002-12-06
		Lisa pose la question : A function that is onto but not one-to-one where f:N-->N Penny Nom lui répond.
	A lampshade from a cone		2002-11-26
		Ellsie pose la question : I need to make a pattern to cover an old lampshade. This is actually the bottom portion of a cone. Please help me figure out how to draw this pattern, so that we can complete our project. Penny Nom lui répond.
	Exponential notation		2002-10-19
		Ivy pose la question : I understand how to figure out for example 4 to the power of 3,what I don't understand is how to figure it out using both negative numbers and negative exponents,as an exaple -4 to the power of 6 and what makes this different that (-5) to the power of 7,please help me if you can.I am an adult taking correspondence and finding it quite frustrating. Penny Nom lui répond.
	Exponent 0		2002-10-02
		Debbi pose la question : can you please tell me what the exponent 0 is (i.e. 70) Penny Nom lui répond.
	The interrelations of the propositions in Euclid I		2002-10-01
		Rob pose la question : I'm a student at St. John's College in Santa Fe New Mexico, are school is devoted to the great books and we're now reading Euclid's Elements in english and Attic Greek. We have an assignment to show a frequency or flow chart of how all the propositions of book one are interrelated. Chris Fisher lui répond.
	A cone that is cut off at the top		2002-09-23
		Stuart pose la question : I have to work out the dimensions and arcs of a cone that is cut off at the top. I.e Top diameter is 33mm to bottom diameter is 43mm and the depth is 80mm Are you able to work what the flat of this cone would be as I need to design within the flat area and then have it cut out. I really need to know what the flat of it is before it is cut and curled to form the above cone. Walter Whiteley lui répond.
	Fractional exponents		2002-09-20
		Jill pose la question : The problem is with fractional exponants: 10 1/3 mult. by 10,000 The 1/3 is an exponant of 10. Penny Nom lui répond.
	A paper model of a cone		2002-08-14
		Bruce pose la question : I have made a paper model of a cone, cut a sloping section, and removed the top. I have drawn the major and minor axis on the paper surface of the section. The major axis is not symmetrical about the minor axis. To me, this is not an ellipse. To me, an ellipse is a tubular section, because this gives a symmetrical major axis. What is your opinion? Walter Whiteley and Chris Fisher lui répond.
	Future value		2002-06-27
		Susan pose la question : If one were to invest $115 a month for 20 years and expect a 4% annual return, what is the value of this money in 20 years? Leeanne Boehm lui répond.
	Conics		2002-05-29
		Brooke pose la question : Which conic cannot be generated by an intersection of a plane and a double napped cone? Chris Fisher lui répond.
	Telephone banking		2002-05-22
		Fiza pose la question : To use telephone banking to pay bills, the customer has to enter the last three digits of each bill. the numbers 0 to 9 can be used. if the number happened to be the same on more tan one bill, the customer has to enter the first three digits as well. (a) what is the probability that a person has 2 bills to register with the same last three digits? ANSWER:P(2 bills to register)=1/10P3 1/(10!/7!), 1/(10*9*8)=.001389 (b) what is the probability that a person with 10 bills to register has at least 2 bills with the same last three digits? ANSWER:P=1/(10*10*10) =0.001 Andrei Volodin lui répond.
	oneths		2002-04-30
		Logan pose la question : why are there tens-tenths hundreds-hudreths, but not oneths if that made no sense then how about this why does everything have two ways of saying things like tens and tenths but not a oneths Claude Tardif lui répond.
	The vertex of a cone		2002-04-13
		Callie pose la question : Does a cone have a vertex? Penny Nom lui répond.
	A cone in 3 space		2002-03-20
		Matthew pose la question : Let C in R3 be the cone defined by x2 + y2 - z2 = 0 (A) Let P be the plane described by x + 2z = 1 (i) Find a description of P in terms of two parameters s and t . . . Walter Whiteley lui répond.
	My salary is doubled everyday for 30 days		2002-01-17
		Kanishk pose la question : I recieve 1 penny the 1st day, 2 pennies the 2nd day, and my salary is doubled everyday for 30 days. How much money will I have by the end of the 30 day time period? (Is there a way of solving this problem without a chart?) Penny Nom lui répond.
	Negative exponents		2002-01-16
		Julie pose la question : If z to the power of -4= 1/z4 then how would you solve 1/t-2? Penny Nom lui répond.
	Exponential form		2001-12-11
		Crystal pose la question : Hi, I am asking a question on behalf of a homeschooling grade 11 student. She is having trouble with changing something like (3-4)2 into a exponential form. First of all she needs to know what the term means "exponential form" and then the process of it. Penny Nom lui répond.
	Water in a conical tank		2001-10-20
		Sarah pose la question : The problem: Water flows into a conical funnel at a continuous rate of one gallon per minute (One gallon = 231 Cu.In.). The height of the funnel is 5" and the diameter is 8". The 1st formula: I need to develop a formula that will give the volume, in cubic inches, of the water in the funnel at any time t (in seconds). V = f(t). The 2nd formula: I need to develop a formula that will give the height of the water in the funnel at any time t (in seconds). h = f(t). Penny Nom lui répond.
	Rules of exponents		2001-10-14
		Carissa pose la question : how do you work this out? Investigate the relationship between a,b,c and d if 2a*2b=4c/4d? Leeanne Boehm lui répond.
	Zero as an exponent		2001-10-04
		Wendy pose la question : How do I explain to kids that i.e. 5 exponent 0 = 1? Does 0 exponent 0 = 1? Leeanne Boehm and Penny Nom lui répond.
	1:5		2001-09-27
		Sandy pose la question : A colleague and I have a disagreement about dilutions. I seem to remember that I was taught (although it was a long time ago) that a RATIO was written thusly: 1:5 , and read " one part to five parts", for a total of 6 parts. On the other hand, a fraction is written: 1/5 and is read" one part in five" for a total of 5 parts. My colleague says that the ratio reads "one part in five" and is essentially the same as a fraction. Which is right? Have I been doing dilutions wrong all this time? I teach Animal Nursing and need to know where I can find a consise answer to such questions for making up medicated fluids, etc. Penny Nom lui répond.
	Earthquake warning		2001-09-03
		Dillon pose la question : In the city of Skangai there are 6 million people.Each person has to tell 2 more people that theres going to be an earthquake. After they do they leave the city. There will be no duplications.It takes 3 minutes to tell each person. How long will it take for the whole city to know about the earthquake? Penny Nom lui répond.
	A phone bill		2001-06-18
		Janet pose la question : What is the formuala to calculate cost per minute? Here is the data below # of calls - 238 # of minutes - 443 cost - $70.06 Penny Nom lui répond.
	Exponential form		2001-06-06
		A student pose la question : Hello can u please answer my question what is the exponent form of 8x8x8x8 Penny Nom lui répond.
	Conservation, consumption and population growth		2001-06-04
		Steve pose la question : I'm trying to quantify the relation between conservation/consumption and population growth. For instance let's consider California: The 2000 census states that California's population grew from 29,760* in 4-1990 to 33,871 in 4-2000. I want to find r or rate of growth per year. Based on the exponential growth formula for population growth: . . . Penny Nom lui répond.
	A pile of sand		2001-05-14
		Gul pose la question : Sand for use on icy roads is stored in a conical pile 14.2 m high and with a base diameter of 34.4 m calculate the volume of the pile if one sander can take 6.9 m of sand, how many sanders can be filled from the pile? Penny Nom lui répond.
	Powers		2001-03-04
		A student pose la question : Hey, can you show me how you do .. (2xy)to the 3rd power (x) to the 2nd power? Penny Nom lui répond.
	Faces		2001-02-21
		Sandy pose la question : How many faces are there on a sphere? What are the faces of a cone? What is the definition of a "face" of a 3D object? Walter Whiteley lui répond.
	Multiplying one and two digit numbers		2001-02-11
		Marty pose la question : When multiplying do you put the number you are multiplying by on the top or the bottom. Example if you are multiplying by 6's would you write the problem 6 x 2 or 2 x 6 Maybe it just doesn't matter. But when you get to double digits, the double digit always goes on the top? Penny Nom lui répond.
	Bicycles and phone calls		2001-02-08
		Sarah pose la question : A bicycle has a diameter of 66 centimeters. How many times must the tire rotate to travel 1 kilometer?explain answer. Becky want to make a long distance call to her friend Sarah from a pay telephone.She has $5.00 in change.The call costs $0.90 for the first three minutes and $0.24 for each additional minute.How long can Becky talk to Sarah? Leeanne Boehm lui répond.
	(-2b+3)(-b-1)		2001-02-06
		Melissa pose la question : Alright, lets say you are multiplying (-2b+3)(-b-1) and you are using "FOIL" first you would get : 2b2+2b-3b-3 then you add like-terms. when multiplying,if the bases are the same, add the exponents...does the same thing apply when you are adding the results of the multiplication even though it's addition? would the answer be 2b3-3b-3 or would it be 2b2-b-3? Penny Nom lui répond.
	1 + 1 = 1		2001-01-23
		Stephanie pose la question : My friend has this as a bonus question the other day and I want to figure it out. I don't know how 1+1 in any form could equal 1. Please let me know how you come about geting that. Claude Tardif lui répond.
	Polynomials and exponents		2001-01-15
		A student pose la question : I am duing a project in math on polynomials and exponents. I need a real life usage of polynomials and exponents for my project. Penny Nom lui répond.
	Exponents		2001-01-14
		A student pose la question : I am wondering if a number raised to the second power is "squared" and a number raised to the third power is "cubed" is there a name for any number raised to any other power. Harley Weston lui répond.
	Calculating the tax		2000-12-22
		A grocer pose la question : I have a small grocery store. I have a bag of money containing $325. This represents the mornings receipts and a tax of 5.75% is included in the total. How can I separate the gross take from the tax take so that I'll know how much is mine and how much is the state's? Penny Nom lui répond.
	Graphing F(x) = 3x		2000-11-06
		Jose pose la question : graph the exponential problem F(x)=3x Harley Weston lui répond.
	Isolating an exponent		2000-09-24
		C. Scott pose la question : Suppose you invest $500.00 in an account that pays 10% interest compounded annually. How long will it take for this value to triple? A=p(1 + i)a A=1500 i=0.1 1500=500(1.1)a p=500 a=unknown How do you solve this problem algebraicly? How do you isolate the variable (a) when it is an exponent? Harley Weston lui répond.
	Manipulating powers		2000-09-13
		Phil pose la question : 21/5 x 42/5 = ? Penny Nom lui répond.
	Making a paper cone		2000-07-30
		John pose la question : The question of how to lay out & cut out of paper, cones came up. I would like the cone have : A base of 4 inches and height of 4 inches, 6 inches, 8 inches. Harley Weston lui répond.
	Calculator and telephones keypads phones		2000-06-27
		Thomas Smith and Veronica Yates-Riley pose la question : On a keyboard, why is the number "7" on the top of the keypad as opposed to the number "1" at the top a telephone keypad? Penny Nom lui répond.
	Volume of a sphere		2000-05-21
		Kevin Partridge pose la question : Does anyone have a way to physically demonstrate how to explain the volume formula for a sphere? Or perhaps how to derive the formula without calculus? Harley Weston lui répond.
	Radioactive decay		2000-05-18
		Catherine Sullivan pose la question : Please help me with the following: The radioactive isotope carbon-14 is present in small quantities in all life forms, and it is constantly replenished until the organism dies, after which it decays to carbon-12 at a rate proportional to the amount of C-14 present, with a half life of 5730 years. Suppose C(t) is the amount of C-14 at time t. Find the value of the constant k in the differential equation: C'=-kC In 1988 3 teams of scientists found that the Shroud of Turin, which was reputed to be the burial cloth of Jesus, contained 91% of the amount of C-14 contained in freshly made cloth of the same material. How old is the Shroud according to the data? Harley Weston lui répond.
	A colony of bacteria		2000-04-22
		Nicci Demmin pose la question : Suppose that the bacteria in a colony can grow unchecked, by the law of exponential change. The colony starts with one bacterium and doubles every half hour. How many bacteria will the colony contain at the end of 50 hours? Penny Nom lui répond.
	Lining a cone		2000-04-06
		Jim Campbell pose la question : I am not a student, I am trying to solve a business problem. The question. If I want to put a lining in a chute that is cone shaped, how do I calculate the size steel plate I need to do that. The cone is 10' in diameter at the top and has a 20" hole at the bottom. The total height of the chute is 8'. Harley Weston lui répond.
	y = x^x^x^x...		2000-04-05
		Michael Hackman pose la question : Find the derivative of: y = x^x^x^x... on to infinity. Claude Tardif lui répond.
	Compounding continuously		2000-03-21
		Gina pose la question : You deposit $1500 in an account that pays 6.5% annual interest, compounded continuously. Find the balance after 10 years. I'm not sure what to do with the "compounded continuously" part. Penny Nom lui répond.
	Functions that satisfy f' = f		2000-03-16
		Kevin Palmer pose la question : Recently my calculus teacher asked his students to try and find any functions whose derivatives where the exact same as the original function. The only function then I have determined that statement to be accurate in is all the natural exponential functions. Ex. f(x) = ex, f'(x) = ex If possible could you please email me all the functions that you can find in which the original function and its derivative is identical. Claude Tardif lui répond.
	Saving for college		2000-03-01
		Andrew Kunz pose la question : SAVING FOR COLLEGE In this project, you will forecast a friend's finances. Jane has received $75 from her grandparents on every birthday since she was one year old. She has been saving the money in an account that pays 5% interest. She is saving her money to help you pay for her college education, which she will start this fall after her 18th birthday. She also has been receiving birthday checks from her other relatives, but these didn't start until she was 12 years old. The amounts of these checks from her 12th birthday until her 18th birthday are $45, $45, $55, $50, $55, $60, $65. How much money will she have saved just from her birthdays by the time she starts college? IS this a reasonable amount to pay for a used car during her junior year in college? If she had invested her money in a different accoutn that had earned 7% interest, how much more money would she have saved? Penny Nom lui répond.
	Slant height of a cone		2000-02-24
		Jocelyn Wozney pose la question : I need help with this problem for my high school calculus class. Any help you can give me will be greatly appreciated-I am pretty stumped. "Express the volume of a cone in terms of the slant height 'e' and the semi-vertical angle 'x' and find the value of 'x' for which the volume is a maximum if 'e' is constant. Harley Weston lui répond.
	More on googols		2000-02-23
		Kevin Brennan pose la question : Could you please give me a couple of examples of when you MATH guys would use a google. Do youu measure, like, galaxies with it ? Or was it created to keep track of Mr Gate's bank account. Penny Nom lui répond.
	An unbelievable story		2000-01-17
		Melissa pose la question : good morning-i am taking a course "math for elementary teachers" and i have a take home problem that i really need help on. here is the question -the million dollar problem a recent item in the newspaper described a robbery in which the robber had held up a local bank for 1 million dollars in small bills, had the tellers put the money in a briefcase which he gave them, and fled the scene on foot. is this story believable? explain your answer! Harley Weston lui répond.
	Phone Number Possibilities		2000-01-09
		Hamilton Weston pose la question : How do phone companies arrive at the possible number of phone numbers that can be generated for customers? Harley Weston lui répond.
	Logarithms		1999-12-16
		Pierre pose la question : Can you please answer those three question inverse or the exponential function. logx 81 = 4, x expo4 = 81, x = +or- 4square root 81, x = +or- 3 s.s = {3} Why is -3 not acceptable. . . . Harley Weston lui répond.
	Log Cancel		1999-12-03
		Justin Murray pose la question : Ok I feel like a goof because I know this and I cant think of an answer But I want to isolate the x in the function y=2^x how do I do this? Harley Weston lui répond.
	Zero to the zero		1999-12-02
		A middle school teacher pose la question : I am a middle school teacher who is looking for a precise explanation of why zero raised to the zero power is undefined. I am hoping to get an explanation using something other than the fact that diividing by zero is undefined. Penny Nom lui répond.
	Get rich quick		1999-12-02
		Holly Hutson pose la question : If one cent were placed in an investment that doubles in value every day, what would be the value of the investment at the end of 30 days? Penny Nom lui répond.
	A matching quiz		1999-11-20
		William J. Ricciardi pose la question : I gave a matching quiz the other day and one of my students got all 9 incorrect. That got me thinking......What is the probability that someone could get all 9 questions incorrect? Peny Nom lui répond.
	Two derivatives		1999-11-16
		Gina Renicker pose la question : The derivative of: y=e(xlnx) and y=x2arctan(x1/2) Harley Weston lui répond.
	Nines and ones		1999-11-05
		Greg Miller pose la question : Using the numbers 1, 1, 9, 9, only once each, how can I create an expression that equals 10 using only the basic functions of addition, subtraction, multiplication, division, and/or parentheses? Claude Tardif lui répond.
	(-5)^2, -5^2 and -(5)^2		1999-10-13
		Jennifer Brown pose la question : What is the difference between the following problems: (-5)2, -52 and -(5)2 Our text book (Beginning Algebra, fourth edition, published by McGraw Hill, by Streeter, Huthison and Hoetzle) says the second and third problem are exactly the same. I don't see how that can be. Is there a mathematical rule that explains this? Penny Nom lui répond.
	A googol		1999-10-06
		Kevin Brennan pose la question : describe to me a guegoll is that how u spell it? it sounds like that Penny Nom lui répond.
	Surface area of a cone		1999-09-18
		Frothy pose la question : I don't understand how to find the surface area of a cone. The height is 12cm and the radius is 5cm. Walter Whiteley lui répond.
	2 to the x and x squared		1999-09-17
		John pose la question : For what values of x is 2 to the exponent x greater than x squared? Harely Weston lui répond.
	Slopes of curved lines		1999-06-09
		Stephen Ehrler pose la question : When one plots the graphs of y=2x, y=3x, y=xx When each of these graphs pass through point (0,1) do they have the same slope? I know they are different lines but is it possable that they have the same slope at point (0,1). Harley Weston lui répond.
	The Binomial Theorem for rational exponents		1999-04-15
		Angela Evans pose la question : The full question is this: Isaac Newton generalized the Binomial Theorem to rational exponents. That is, he derived series of expansions for such expressions as (x+y)-3 (x+y)2/3 (x+y)5/6 What did Newton find? What are the first four terms of the series expansions of binomials above? How can this extended Binomial Thrm. be used to aid in calculations? Penny Nom lui répond.
	Large Numbers		1999-04-05
		CK pose la question : Hello. I need a lesson plan for grades 4 to 7 dealing with the concept of large numbers. Specifically, how to teach scientific notation. The lesson plan has to deal with the following: the size of the universe is so huge that is is almost beyond the ability of the mind to comprehend. One way is to measure... Chris Fisher lui répond.
	Non-Euclidean Geometry		1999-02-10
		Robert Smith pose la question : Is non-euclidean geometry necessary for the college bound student? I have students that are inerested in teaching math one day. My school is restricted to Euclidean Geometry. Walter Whiteley and Jack LeSage lui répond.
	Primary Mathematics		1999-02-08
		Syairul pose la question : Mr Wu earned $2365 in January. He earned $375 more in February than in January. If he spend $4250 in the two months and saved the rest, how much did he save? Jack LeSage lui répond.
	Money and Counting		1999-02-03
		Deborah Goodman pose la question : I am looking for ways to tutor my daughter in money counting and handwriting skills. Jack LeSage lui répond.
	-(4)^0 = ?		1998-12-02
		Derek Yau pose la question : I would like to know why any number to the exponent 0 equals to 1 also, I would like you to please answer this question: -(4)^0 = ? I know the answer is 1 but I am confused as to if it is a negative one or a positive one. Jack LeSage and Penny Nom lui répond.
	French Francs		1998-10-01
		Richie Franklin pose la question : 1.what did one dollar equal in France francs ten years ago, twenty years ago, and fifty years ago? Chris Fisher lui répond.
	15 to the zero		1998-06-24
		Mike Husken pose la question : My daughter has the problem: 15 with an exponent of zero=1. Could you help explain why? I would appreciate an answer soon as she has class tomorrow. thanks, Penny Nom and Patrick Maidorn lui répond.
	A Logic Problem		1998-06-07
		Anthony Bacigalupo pose la question : My name is Anthony Bacigalupo and I take Sequential ][ Math and am taking a practice regents. When doing a logic problem, I encountered the following statements, where I am trying to prove P ( I left out steps unrelated to the question).... Chris Fisher lui répond.
	Pay Phone Problem		1998-02-26
		Shameq pose la question : Hi, I've been given a problem that I'm having some trouble with. I'd really appreciate any help. Here's the question (it's called the Pay Phone Problem) A pay phone will take only 10p, 20p, 50p, and £1 coins"(It's British). A woman has plenty of 10p and 20p coins. She has no other coins. She can put the coins into the pay phone in any order. INVESTIGATE the number of different ways, she could put the 10p and 20p coins into the pay phone. Penny Nom lui répond.
	(50^20)(20^50)		1998-02-24
		fion pose la question : 50 power of 20 X 20 power of 50? How many zero can be found in the answer and why? Penny Nom lui répond.
	Some Calculus Problems.		1997-10-30
		Roger Hung pose la question : What real number exceeds its square by the greatest possible amount? The sum of two numbers is k. show that the sum of their squares is at least 1/2 k^2. . . . Penny Nom lui répond.
	Diagramming Powers		1997-10-15
		David Fill pose la question : I am a teacher in Massachusettes. We have been diagramming numbers such as two to the third (a 3-D cube). One of my students asked me how you would diagram two to the fourth. I have searched through all of my teachers books and cannot seem to find the answer to this question. Is there a way to diagram this? If there is, how would you do this? Your help would be greatly appreciated. Penny Nom lui répond.
	Formulae for Surface Area.		1997-04-28
		Gary Millward pose la question : I'm trying to help my son with his Math homework (Grade 10) and he has to find the surface area of a cone and rectangluar pyramid. We have the formulas for the volume of these solids, but can't seem to locate the formulas for surface area. Walter Whiteley lui répond.
	Natural Logarithm Functions		1997-04-23
		Rickson pose la question : The following two questions are some of my son's homework that he is having trouble with......any advice or assistance would be appreciated. (eX)5=1000.............the X and 5 are exponents lnx + ln(x+3) = ln10 In each question the problem is to find x. Harley Weston lui répond.
	Smith, Rodriguez and Jones		1996-11-07
		Rafayel Ambartsumyan pose la question : On a train, Smith, Rodriguez, Jones are the fireman, brakeman, and engineer, but not in that order. Also aboard the train are three businessman who have the same names, a Mr. Smith, a Mr. Rodriguez, and a Mr. Jones. ..... Who is the engineer? Penny Nom lui répond.
	How do you raise a number to an imaginary/complex power?		1996-07-03
		Andy Golden pose la question : How do you raise a number to an imaginary/complex power? I know how you raise "e" to a complex power, like e^(pi*i): cos pi + i * sin pi But what about numbers other than "e"? What if I want to raise 5 to the 2i power? How is that done? Chris Fisher lui répond.
	a to the power zero		1996-06-03
		Beti pose la question : Why is a number to the power 0 equal to 1? Harley Weston lui répond.
	Exponents		1996-02-25
		Eric Cote pose la question : I want to know why the grade six math books tell you that the little number at the top right of another number (exponent) is called the power, but the grade seven and up books tell you it's called the exponent? Harley Weston lui répond.

		Page 1/1