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	il y a deux contenant		2007-01-23
		Eric pose la question : il y a deux contenant un de 3 litre et un de 5 litre les deux sont vide comment en les remplisant on peux obtenire 4 litre Claude Tardif lui répond.
	isomorphisme		2000-08-10
		Romain Kroes pose la question : Pour les beoins d'un ouvrage d'économie que je suis en train de terminer, pouvez-vous me dire qui est (sont) l'inventeur de l' "isomorphisme" en mathématiques (calcul tensoriel)? Claude Tardif lui répond.
	Arranging 10 digits		2019-10-09
		Laxmi pose la question : 1)The integers 0 to 9 are arranged along a straight line in some order.a) find a possible arrangement in which the sum of any three adjacent numbers is less than 15.b)is there an arrangement of this kind 0 is not included in the numbers. Penny Nom lui répond.
	Creating a number sentence		2018-06-29
		trish pose la question : First I have to solve the problem. Then write a number sentence for the problem. The problem: By installing a $120.00 thermostat that reduces the temperature setting at night a family hopes to cut its annual fuel bill for heating oil by 8%, and recover the cost of the thermostat in fuel savings after 2years. What was the family's annual fuel bill before installing the thermostat? Thanks can't figure this one out! Penny Nom lui répond.
	The inverse square law		2018-06-05
		Amy pose la question : Question about inverse square law ; Hi, I'm trying to understand some nuances about this law and have been reading about it a lot online and trying out some homework for personal interest (hobby ) - not school related. I understand that the simple formula is ; 1/d^2 I was wondering about what appears to be an oddity to me, that I came across when I was working with a test example I found at this link ; http://www.softschools.com/formulas/physics/inverse_square_law_formula/82/ The problem that caught my interest was this one on that page ; "1) If a bright flashlight has a light intensity of 15.0 candela at a distance 1.00 m from the lens, what is the intensity of the flashlight 100.0 m from the lens?" So I have a few different questions about this, but the most important one is, what does it mean if we replace the "1" in ; 1/d^2 with a different value such as a ratio in the form of a decimal value, so instead we have something like this ; 0.75/d^2 ??? Does this ratio represent a curve then? I am thinking that the "1" in the normal formula represents a straight line Some of the links I was researching ; http://wisptools.net/book.php?c=3&s=2 http://www.softschools.com/formulas/physics/inverse_square_law_formula/82/ https://www.nde-ed.org/GeneralResources/Formula/RTFormula/InverseSquare/InverseSquareLaw.htm 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.
	The tens digit of a number is five times the unit digit		2016-05-19
		sanjeev pose la question : The tens digit of a number is five times the unit digit. Find the number? Penny Nom lui répond.
	Four equations in 3 unknowns		2015-08-23
		damien pose la question : solve: S x U - T = 44 T - U x S = 36 U + T - S = 7 U x U / S = 4 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 tennis ball in a triangular prism		2014-10-06
		Anna pose la question : Hi, I need to find the the base and the height of a triangular prism, but I only know the diameter of a tennis ball that fits exactly in the triangular container.. The diameter for the ball is 8.50cm. Can you help me find the formula? Thank you! Penny Nom lui répond.
	What are the possible lengths of the hypotenuse?		2014-03-07
		audrey pose la question : The three sides of a right angles triangle measure x-2, x+5, and 2x-1 in length. What are the possible lengths of the hypotenuse? ... I'm doing the equation c2=a2+b2 and subbing in the numbers but nothing makes sense Penny Nom lui répond.
	The hypotenuse		2012-09-06
		Jeevan pose la question : how can i find the height and base of a right angle triangle if i have the hypotenuse only ? Penny Nom lui répond.
	Three tennis balls		2012-05-17
		eiman pose la question : Three tennis balls are placed inside a container . the tennis balls are tangent to the top, bottom,and sides of the container . find the volume of air inside the container surrounding the tennis balls if the diameter of the tennis balls is 6 inches Chris Fisher 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.
	Figures with dots		2012-02-15
		A pose la question : Okay so my daughter came home and had this question for homework from her teacher. I have no idea what it means HELP!! The question shows a figure that is a square. It has 5 dots on the top, bottom and on the sides looks similar to this: . . . . . .       . .       . .       . . . . . . they want to know 3 more ways to show the number of dots in the figure. They have already shown one with just counting them and the other one that they showed was circling the four corner dots and then taking the dots in between with a number sentence set up like this: 4+4*(5-2) = 4+4*3= 16. They also besides giving 3 ways want us to write a number sentence and an algebraic sentence to show the number of dots in the figure with "n" sides. Please help! So confusing ! I don't know if my square turned out or not but it should be 5 across the top and bottom and on the sides and no dots in teh middle it is just the outside. Penny Nom lui répond.
	Ten percentage of 24 hours		2012-01-23
		robin pose la question : Hai.. Myself Robin.. May i know the ten percentage of 24 hours? Pls help me.. Thank you. Penny Nom lui répond.
	Extended real numbers		2011-12-12
		Justin pose la question : Hi there, I was wondering does +infinity=+infinity in the extended real number system? Basically, I was wondering does +infinity=+infinity since -infinity and any extended real number (except +infinity) are less than +infinity? Sincerely, Justin Robert Dawson lui répond.
	Expanded form		2011-10-12
		Chris pose la question : Write this number in expanded form 4 326 180 501 Thanks!!! Penny Nom lui répond.
	Tennis schedule		2011-04-04
		Toni pose la question : I need to create a doubles tennis schedule for 6 players playing over a 32 week schedule where no player repeats with a partner. Victoria West lui répond.
	A two digit number		2011-03-01
		jhoanna pose la question : the sum of the digits of a two digit number is 10. The value of the number is 16 times the units digit.Find the number. 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.
	A division sentence for an array		2010-10-05
		Laura pose la question : On a math test Grace needs to look at an array and write a division sentence for the array. Grace writes 18/3=6 on her answer sheet. Describe what the array on Graces test looks like. 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.
	The hypotenuse of a triangle		2010-05-22
		linda pose la question : find the length of the hypotenuse of a triangle with legs of 12in. and 17in. round to the nearest hundredth Tyler Wood lui répond.
	The hypotenuse		2010-02-27
		Dannielle pose la question : how do you find the hypotenuse if a=8 and b=6? Penny Nom lui répond.
	A square corner		2010-02-11
		Trevor pose la question : I am building a new house and wish to set it out on site with the use of profile boards and string. I want to be certain it is correct in terms of squareness. I have a vague idea that the square on the hypotenuse should be equal to the sum of the squares of the other two sides. I get a little lost here and need some help. The building is a rectangle measuring 40x30 feet to exterior brickwork. I guess that the length of the hypotenuse should be exactly the square root of the combined squares of the two sides. Using the above measurements could you give me calculations from nuts to soup as to the correct length of the diagonal. And what adjustments are needed if everthing is not in accord. Trevor. Robert Dawson lui répond.
	The extended real numbers		2009-11-02
		Justin pose la question : Hello there, I was wondering is the set of extended real numbers a closed set or an open set? Justin Robert Dawson lui répond.
	The hypotenuse of a right triangle		2009-10-18
		steven pose la question : the perimeter of a right triangle is 20 cm. its area is 15 sq cm. find its hypotenuse. Penny Nom lui répond.
	The extended real number system		2009-06-30
		Justin pose la question : Hi again, thanks a lot for answering my previous question! I was also just wondering again if the extended real number system has a potential or actual infinity because it includes positive infinity as a point that exists at the end of it? All the Best, Justin Robert Dawson lui répond.
	Potential infinity and actual infinity		2009-06-29
		Justin pose la question : Hi there, I was just wondering what is the difference between the potential infinity and actual infinity in math? Thanks a lot for your help with this question! All the Best, Justin Robert Dawson lui répond.
	Is one Infinity larger than another in the extended real number system?		2009-06-24
		Justin pose la question : Hello there, I was wondering if one infinity is larger than another in the extended real number system (just like in the transfinite ordinals and cardinals with respect to infinite sets) or are all infinities the same size in the extended real number system? Thanks sooo much for answering my question! I greatly appreciate it! All the Best, Justin Robert Dawson lui répond.
	An array with 2 more rows than columns		2009-02-28
		Mario pose la question : Write a division sentence modeled by an array that has 2 more rows than the number in each row. Penny Nom lui répond.
	Augmented matrix: independent, dependent, or inconsistent?		2009-02-23
		Anna pose la question : Perform row operations on the augmented matrix as far as necessary to determine whether the system is independent, dependent, or inconsistent. x + y + z = 11 x - y + 3z = 5 2x + 2y + 2z = 15 Harley Weston lui répond.
	A tennis schedule		2009-01-26
		Lorraine pose la question : I need to create a tennis schedule. We have 8 players, but only 4 play at one time. I need to create a schedule for 34 matches, but of the 34 each player plays 17 times. Each player must also play with each of the other 7 the same number of times. For instance player 1 will play 17 times, and will play with the other players the same number of times as player 2 does. Is this even possible? Robert Dawson lui répond.
	The tens digit of 0! + 1! + 2! + 3! + 4! .............+9999! + 10000!		2009-01-23
		Kaylyn pose la question : determine the tens digit for the expression: 0! + 1! + 2! + 3! + 4! .............+9999! + 10000! Robert Dawson and Penny Nom lui répond.
	The third vertex of a right triangle		2008-12-10
		prashant pose la question : how to calculate coordinates of third vertex in a right angle triangle given the coordinates of hypotenuse as (1,3) and (-4,1) Robert Dawson lui répond.
	The part before the repetend		2008-11-02
		Puerto pose la question : Hello, I teach mathematics in a bilingual programme using English. I have learned that the group of digits that repeat in a repeating decimal is called repetend but i need to know how are called the previous ones when the decimal is a delayed-repeating one. I mean, in 0.34555555 5 is the repetend, the period is one and...how are called 34? Thanks in advance. Stephen La Rocque and Penny Nom lui répond.
	A falling block		2008-10-18
		KOBINA pose la question : A 50 kg block being held at rest 20m above the ground is released. the block falls (no friction). how fast is the block traveling (in m/sec) when it has lost 40% of its original potential energy. Stephen La Rocque lui répond.
	Repeating fractions		2008-09-09
		Juli pose la question : My teacher recently put my math class to the test... We were deiscussing repeating fractions and she asked us to find out what the bar over a repeating decimal is called. I found out it was called the vinculum. But she also said to find out what the number under the vinculum was called. I can't seem to find it anywhere. Penny Nom lui répond.
	How do you write 92 tenths as a decimal?		2008-09-05
		Miriam pose la question : How do you write 92 tenths as a decimal? Penny Nom lui répond.
	Ten acres		2008-05-25
		RICHARD pose la question : hi, i am getting 10 acres of ground from a aunt which is going to be taken out of a 50 acre tract.both the north and south lines are 1320 feet long.i need to know how long the east and west lines will be to make the 10 acres and what the square footage will be for the 10 acres Harley Weston lui répond.
	Girls, cats and kittens		2008-05-16
		leria pose la question : There are 7 girls in a bus. Each girl has 7 backpacks In each backpack, there are 7 big cats For every big cat, there are 7 little cats. How many legs are there in the bus? One hint? it's a 6 digit number Penny Nom lui répond.
	A solid figure with 3 rectangular faces and 2 triangular faces		2008-04-17
		Emily pose la question : I am in the 3rd grade and my teacher gave us a question. What is a solid figure with 3 rectangular faces and 2 triangular faces? Penny Nom lui répond.
	Women, cats and kittens		2008-02-12
		Paige pose la question : There are 7 women on a bus. Each has a backpack. In each backpack there are seven cats. Each cat has seven kittens. How many legs are there total on the bus? Penny Nom lui répond.
	A 45-45-90 triangle		2007-12-13
		Aaditya pose la question : explain to me please how to do the 45-45-90 theorem when one of the legs(not the hypotenuse) is 3. How do you find the remaining two sides? please help me out. Leeanne Boehm lui répond.
	A right triangle		2007-12-06
		Shubhomoy pose la question : The co-ordinates of a hypotenuse are (1,3) and (-4,1). Find the equations of the perpendicular sides. Harley Weston lui répond.
	A right triangle		2007-11-21
		Jason pose la question : One leg of a right triangle is 12 inches long. The other leg is 3 inches shorter than the hypotenuse. Find the lenght of the hypotenuse. Penny Nom lui répond.
	A ten digit number		2007-11-11
		jeff pose la question : find the greatest ten-digit positive multiple of 12 using each digit once and only once Penny Nom lui répond.
	Area and side length of a hexagonal tent		2007-10-09
		Mark pose la question : Trying to buy a tent with 6 sides, in the catalog they give me sq. ft., what is the distance from side to side of a hexagonal tent with an area of 90 sq. ft. Stephen La Rocque lui répond.
	How many ten thousands makes one million?		2007-10-02
		Payton pose la question : how many ten thousands makes one million? Penny Nom lui répond.
	The hypotenuse		2007-09-20
		Kasey pose la question : What is the hypotenuse of 96 squared and 108 squared? Penny Nom 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.
	Number sentences		2007-09-15
		jen pose la question : list the addition number sentences that can be written using two sets of cards with the numbers 5 6 and 7. which number sentences have the same addends but show a different order?,,,,,,,,,,,,,,Ithis is for my son in 3rd grade and for the life of us we can't figure it out,,thanks for this elementary help Harley Weston lui répond.
	The tens digit		2007-08-21
		Arul pose la question : Hi.. Please help me on this question.. Sequence 2, 7, 22,…after the first three terms, each term is three times the previous term plus 1, a(n+1)=3an + 1. What is the sum of tens digit 33rd and tens digit of the 35 term? Penny Nom lui répond.
	The tension in a single strand of wire		2007-08-13
		Gene pose la question : Seeking an equation that calculates the tension in a single strand of wire or rope. Conditions: the wire is fixed at both ends, A known weight is suspended from the center of the span. The weight will dipslace the strand downward some distance Y. Let the distance between the fixed ends be X= 500mm. Weight W=0.5kg. Original tension in the strand is T= 10 newtons.Your help sincerely appreciated. Gabriel Potter and Stephen La Rocque lui répond.
	A right triangle		2007-08-11
		Peter pose la question : Ok, is it possible to find the height and base of a right triangle when all the information you are given is the length of the hypotenuse? I also know that the angle between side b and the hypotenuse is 45 degrees. please help. Walter Whiteley lui répond.
	Height of an antenna (angle of elevation)		2007-07-16
		Fhay pose la question : An antenna stands on the edge of the top of a 52 story building from a point 320 ft. from the base of the building, the angle of elevation to the top of the antenna is 64 degrees in each story is 12 ft. high. Find the height of the antenna Stephen La Rocque lui répond.
	Grams of vodka		2007-07-10
		Andrew pose la question : milliliters to grams..vodka 80 proof? Stephen La Rocque lui répond.
	Dried grapes and percentage of water content		2007-07-09
		Jyoti pose la question : Fresh grapes contain 90% water by weight while dried grapes contain 20 % water by weight. what will be the weight of dry graprs available from 20kg of fresh grapes? Stephen La Rocque lui répond.
	Finding the hypotenuse without Pythagorus		2007-05-11
		Shelbie pose la question : How do i find the hypotenuse of a right traingle not using the pythagorean thereom if i have the measurements of the legs? Stephen La Rocque lui répond.
	Hypotenuse		2007-05-03
		ashley pose la question : how do you find the hypotenuse Penny Nom lui répond.
	Pythagoras was right		2007-04-11
		Vineet pose la question : in a right angle triangle, hypotenuse side is less than the sum of other two sides, how the square of hypotenuse is equal to the sum of squares of other two sides? Stephen La Rocque lui répond.
	What is the hypotenuse of a right traingle		2007-04-04
		debbie pose la question : what is the hypotenuse of a right triangle with sides of 38 meters and 24.2 meters. Stephen La Rocque lui répond.
	Algebra		2007-04-03
		Emily pose la question : 9,365 and 2,242 added to the difference between 255 and half of a number is 11,784. What is the number? Haley Ess lui répond.
	What is the intensity 5m below the surface?		2007-03-31
		david pose la question : I have this question which I am supposed to set it up and solve as a differential equation. I know how to solve the diffrential equation but I am having hard time understanding this question. Here is the question: The intensity of light in the ocean decreases the deeper you dive. In fact, the rate at which the intensity decreases is proportional to the current intensity. Setup the corresponding differential equation and solve for I(Y), the intensity I as a function of current intensity Y. If the light intensity 2m below the surface is 25% of the intensity at the surface, what is the intensity 5m below the surface. Can you please explain to me what does it mean by current intensity and how do I set this equation up. Thanks for the help. Penny Nom lui répond.
	The tens digit of a really large number		2007-03-05
		Sai pose la question : How can i find the tens digit of a really large number? i was gven 63^15 + 15^63 in a competitive exam. Penny Nom lui répond.
	A gymnast is swinging on a high bar.		2007-02-14
		William pose la question : A gymnast is swinging on a high bar. The distance between his waist (center of mass) and the bar is 1.1 m. If his speed at the top of his swing is zero and his gain in speed is due entirely to his change in gravitational potential energy, find his speed at the bottom of his swing. Stephen La Rocque lui répond.
	The hypotenuse		2006-10-02
		Ashley pose la question : How do you find the hypotenuse of a right triangle? I don't understand how to find c. Stephen La Rocque lui répond.
	Volume of a tennis ball can		2006-04-16
		Jon pose la question : Tennis balls are generally packaged in circular cylinders that hold 3 balls each. The diameter of a tennis ball is 6.5 cm. Find the volume of a can of tennis balls. Stephen La Rocque lui répond.
	An array problem		2006-01-31
		Cynthia pose la question : Write a number sentence for this array........ It's a rectangle box 3 down and 4 wide. Penny Nom lui répond.
	Percentage increase in sound intensity		2006-01-29
		David pose la question : I am doing some emotion response mapping. Being a composer I know how to push the heart beat tempo by a % increase of BPM in my music. I want to know how to calculate an increase in intensity of sound. Now I have 60 decibels. I want an increase of intensity by a factor n% with out going over 156 decibels. Penny Nom lui répond.
	how can i find the height of a triangle if i have the base and the hypotenuse		2006-01-27
		Kelsey pose la question : how can i find the height of a triangle if i have the base and the hypotenuse Penny Nom lui répond.
	I want to place four sticks equal distance apart into a tennis ball.		2005-12-13
		Bev pose la question : I want to place four sticks equal distance apart into a 3 inch tennis ball. The circumference of the ball is 9 inches. Where should I place the sticks and how many inches apart. Chris Fisher lui répond.
	A television antenna sits on a roof.		2005-07-30
		Liz pose la question : A television antenna sits on a roof. Two 76-foot guy wires are positioned on opposite sides of the antenna. The angle of elevation each makes with the ground is 24 degrees. How far apart are the ends of the two guys wires? Penny Nom lui répond.
	If the distance of a person from a tower is 100 m...		2005-02-15
		Agustin pose la question : If the distance of a person from a tower is 100 m and the angle subtended by the top of the tower with the ground is 30 degrees, what is the height of the tower in meters? Harley Weston lui répond.
	Tennis balls and probability		2004-11-01
		Jeremy pose la question : I have a hopper of tennis balls that contains 25 new tennis balls and 10 old tennis balls. In the hopper the tennis balls are mixed up randomly. If i take one ball out of the hopper and hit it and then put it back and then take another ball out of the hopper and hit it and put it back, what is the probability that i hit two new tennis balls? Also a tennis ball becomes old after being hit just once. Penny Nom lui répond.
	The hypotenuse of a right triangle		2004-09-20
		Shannon pose la question : I am trying to find the hypotenuse of a right triangle with only the length of the opposite side. What is the formula as I don't have the length of the adjacent side? Can I compute it without knowing what the other two angles are? Penny Nom lui répond.
	The length of a cut		2004-09-17
		Florita pose la question : My daughhter, who is a 9th grader is attempting to cut a piece of wood after determining the length of the cut for the hypotenuse. These are the measures: a=4squared, b=6squared. She determined that c should equal 52. But when she measured the actual piece to be cut, c measured 39.5 inches! Can you offer any insight as to what she is doing wrong? I have suggested that she may be working with an Acute rather than a Right angle . But she insists that it is a Right angle after using a "framing square". Claude Tardif lui répond.
	X bar		2003-11-04
		mary pose la question : Remind me what this means: _ X Andrei Volodin lui répond.
	10,000		2003-10-08
		Nathan pose la question : what two numbers make the product of 10,000. Neither number can end in a zero Penny Nom lui répond.
	The digits in 349		2003-09-12
		Franik pose la question : in the number 349, which number has the least value, and why? Penny Nom lui répond.
	Converting from base 10 to base 5		2003-09-10
		Susy pose la question : My son, who is 9 in grade 5 has been asked to convert base 10 numerals into base 5. His first question of: 24(10) he has calculated to be 4x5 + 4x1 = 44 (5) The next question however is the tricky one.Ý We know the answer is supposed to be 100 but we find it difficult to get this in the way he understands it. 25 (10) = _________________ 100 (5) Can you help us figure out how we reach the answer. Claude Tardif and Penny Nom lui répond.
	Converting to base 10		2003-08-28
		Karen pose la question : My son is in 5th grade.Ý He is learning how to convert numbers from base 2 to base 10, and base 5 to base 10.Ý Can you explain it to me in the simplest terms? Penny Nom lui répond.
	Round to hundredths		2002-11-19
		Brittany pose la question : Can u tell me how to do a problem like this: 35 divded by 4.8= Round to hundreths. Penny Nom 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.
	Catenary		2002-01-02
		Jason pose la question : I am a high school math teacher. I was asked by a friend who is in architectural design for a method for determining the volume of what he called a Catenary. The Catenary curve is modeled by the equation y=a cosh(x/a). I ran into a mess when I tried to compute the volume of the solid formed by revolving that curve around the y-axis. Any help you can provide would be greatly appreciated. Harley Weston lui répond.
	Tenths, hundredths, and thousandths		2001-10-17
		Cheri pose la question : I would like the French terms for the decimal place values of tenths, hundredths, and thousandths. (I would be interested in the Spanish terms also if you had them.) Maria Torres and Claude Tardif lui répond.
	The repetend in repeating decimals		2001-03-21
		Sharon pose la question : What is the name for the bar over the repetend in repeating decimals? Also, what is the name of the long division "house"? Penny Nom lui répond.
	The hypotenuse of a right triangle		2001-01-22
		Phillipe pose la question : How do you find the hypotenuse of a right triangle? Penny Nom lui répond.
	The sum of all ten-digit numbers.		2001-01-10
		John pose la question : Compute the sum of all ten-digit numbers. Can you determine the sum of all n -digit numbers? Sukanta Pati lui répond.
	Static electricity on an airplane		2000-11-12
		John pose la question : What discharges an airplane of static electricity in a electric storm when it is flying. I assume the charge is on the out side of the plane but when does it get discharged, or does it occur at landing? Ted Mathie lui répond.
	Lobbing a tennis ball		2000-10-31
		Alex pose la question : If a tennis ball is lobbed into the air with an initial upward velocity of 12 meters per second, its velocity and height will be functions of time in flight described by the following rules: V=12-9.8T and H=1+12T-4.9T 2 Find the maximum height of the tennis ball and the time it takes to reach that height. Penny Nom lui répond.
	Ten stools		2000-02-06
		Haim pose la question : In a cafe with ten stools, three customers want to be seated, so that no two are next to each other. How many ways can this be done? Do not consider it to be a separate seating if two customers switch seats. Denis Hanson and Walter Whiteley lui répond.
	Tennis doubles		2000-02-04
		Brittany Allinson pose la question : Cheri, Beth and Jacinta are daughters of Mr. Sullivan, Mr. Marchand, and Mr. Benoit. Four of these people are playing tennis doubles. Mr. Benoit's daughter and Mr. Sullivan are partners. Cheri's father and Mr. Marchand's daughter are also partners. There aren't any father/daughter combinations. Who is Cheri's father? Penny Nom lui répond.
	0! + 1! + 2! + 3! + ... + 2000!		1999-10-21
		Melissa pose la question : My name is melissa. I am a 9th grade student I am having trouble finding out how to do this: What is the tens digit of 0! + 1! + 2! + 3! + ... + 2000! I know how to find these, but my calculator cant go any higher than 69! Is there any way i can do this problem? Penny Nom lui répond.
	Measuring the fourth dimension		1999-06-07
		Suzanne Hall pose la question : Hi! The other day, two of my students asked a very interesting question: Is the fourth dimension measured with hypercubes? Their reasoning went like this: Lines are 1D and are measured with line segments, which are part of a line. Planes are 2D and are measured with squares, which are part of a plane. Space is 3D and is measured with cubes, which are part of space. So, logically, hypercubes would be used to measure the fourth dimension. Chris Fisher lui répond.
	Place Value		1999-01-05
		Reg pose la question : I work in a Section 27 classroom with various grades. I am looking for assistance on how to deliver a lesson on place value:decimal numbers keeping in mind that they need to see it (visual) to comprehend. I am looking for grade 4-6 level. Jack LeSage lui répond.

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