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	Ses points de discontinuités est les irrationnelles		2002-01-08
		Un eleve pose la question : Je voudrait montrer qu'il n'existe pas de fonction de R--->R tels que ses points de discontinuités est les irrationnelles, en utilisant la methode de "baire". Claude Tardif lui répond.
	9 games with 3 possible outcomes		2020-09-13
		Daniel pose la question : Hi I’d like to know how many different outcomes would be in a Soccer week played if there is 9 different games 2 teams and 3 outcomes Win, tie or lose Thank you Penny Nom lui répond.
	A system of inequalities		2020-02-01
		Isaac pose la question : Austin has x nickels and y dimes, having a maximum of 15 coins worth a minimum of $1 combined. No more than 4 of the coins are nickels and no less than 11 of the coins are dimes. Solve this system of inequalities graphically and determine one possible solution. Penny Nom lui répond.
	Roll two dice and record the difference		2019-12-09
		Barbara pose la question : Suppose you roll two dice 100 times. Each time you record their difference (always subtracting the smaller one from the bigger one to get a positive difference). The possible values you get are 0,1,2,3,4 and 5. You record the frequency of each value in the following table: Difference of two dice 0 1 2 3 4 5 Observed frequency 12 31 26 13 10 8 Let your null hypothesis be that the dice are fair, and the alternative hypothesis be that they are not fair. Using a confidence level of α = 0.10, test the null hypothesis by a goodness-of-fit test. Hint: begin by completing table: x 0 1 2 3 4 5 f(x) Penny Nom lui répond.
	The area of a patio		2019-06-23
		Miguel pose la question : Stephanie has 60 feet of metal fencing material to only fence 3 sides of a rectangular patio. A tall metal wall serves as the fourth side of the rectangle. write a function for the area the garden (A) in terms of width in feet (x) What measures of the width would give an area of at least 150 feet? 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.
	A parallelogram, a rhombus and a rectangle		2018-02-07
		Sambo pose la question : what do parallelogram, rhombus and rectangle have in common? Penny Nom lui répond.
	A pair of linear inequalities		2017-08-08
		Hempstone pose la question : Solve the inequalities 3x-5<2x+5>4x+9 Penny Nom lui répond.
	A 13 game bet		2016-02-28
		farah pose la question : I'm trying to calculate the odds of a 13 game bet. Each game has 2 teams with 3 possible outcomes (win,draw,lose). What are the odds. Penny Nom lui répond.
	Seven switches with 3 stages each		2015-09-15
		jeff pose la question : We are trying to solve a combination problem. If I have 7 things that can be in 3 states (say on/partially on/off), and all 7 have to a state. How many different combinations can there be? It doesn't seem like we should treat it as 21 independent things, but not sure how to break the problem apart. Penny Nom lui répond.
	An inequality		2015-04-19
		mr. pose la question : Simplify the inequality √x>x and represent on a number line Penny Nom lui répond.
	A region described by inequalities in cylindrical coordinates		2015-02-21
		Rahul pose la question : I am not able to visualize a solid given by inequalities as under (in cylindrical coordinate system) 0= I know that (can visualize) first 2 inequalities say it is a cylinder of infinite length. It seems that third inequality poses the restriction to the height as well as it makes us to remove a cone. But I just can not understand it clearly. Thanks in advance! Regards, Rahul Penny Nom lui répond.
	1 + cot x divided by sin x + cos x		2015-01-15
		Torrie pose la question : I need to solve this problem in terms of Sin, but I'm having trouble. 1 + cot x divided by sin x + cos x Robert Dawson and Penny Nom lui répond.
	An inequality		2014-03-27
		James pose la question : a step on a stairway is at least 8 inches high. write and solve an inequality to represent the maximum number of steps between floors that are 10 feet apart Penny Nom lui répond.
	An inequality		2014-01-17
		Rosie pose la question : 4x/x-2<3 four x divided by x-2 is less than or equal to 3 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.
	Why can't we add or subtract speed?		2013-11-21
		kashish pose la question : why we cannot add or subtract "speed" / directly in any given distance , speed , time questions? Chris Fisher lui répond.
	Solve 2x^4+x^3-37x>26x^2+12 using a graphical approach.		2012-12-29
		Tehmas pose la question : Solve 2x^4+x^3-37x>26x^2+12 using a graphical approach. I don't know how to find the x-intercepts or y-intercepts in this form. Penny Nom lui répond.
	The last 4 digits of a cell phone number		2012-12-22
		Jacob pose la question : If the last 4 digits of a cell phone number, XXX-XXX-ABCD, are restricted where: A cannot be 0 or 1 and B cannot be 0 / how many possible 4 digit combinations are left? Penny Nom lui répond.
	-5<2x+1<-1		2012-11-11
		Rahul pose la question : How does -5<2x+1<-1 changes to 1<|2x+1|<5. What is the rule? Can we apply absolute value function throughout the first inequality i.e. can we say |-5|<|2x+1|<|-1|. But then it becomes 5<|2x+1|<1 which is impossible because 5 is not less than 1. Penny Nom lui répond.
	A proof by contraposition		2012-10-19
		Rahul pose la question : I am not able to understand the following, To prove that if for all e>0, |x|0, then |x|>=e. I understand the approach very well but I do not understand why if |x|=e then |x|>=e. If it is so then why not |x|= Thanks in advance!' Rahul. Penny Nom lui répond.
	Changing the sign of an inequality		2012-09-19
		Bryauna pose la question : Why do you change the signs in inequalities?! Penny Nom lui répond.
	Properties of real numbers applied to subsets		2012-02-01
		Mark pose la question : Hello - The questions that I have for you is do the properties of real numbers (such as the associative, commutative, identity, inverse, and distributive law) apply to ALL the subsets of real numbers? In other words, do all those properties work for the Natural Numbers? The Whole Numbers? And so on and so forth. I understand that they are all real numbers, but for instance: the identity is whenever you add zero to a number, you get that number back. But does that work with, say, with only the odd numbers? Zero isn't odd so can that property actually apply to JUST the odd numbers? Any consideration would be greatly appreciated! Robert Dawson lui répond.
	A trig identity		2012-01-08
		Joe pose la question : Prove this Trig. Identity : ((cos2θ + sinθ-1) / tanθ ) + sin2θ = cosθ Penny Nom lui répond.
	Linear inequalities		2011-03-25
		Alice pose la question : OK. I'm in algebra 1 and the linear inequality is y<2x-1 y>2 I don't completely know how to graph y>2 and I'm getting really frustrated Please help me in any way possible! Thank You! Penny Nom lui répond.
	An inequality		2010-12-13
		jimmy pose la question : 1.7b-1.1 <2.3 Stephen La Rocque lui répond.
	Linear inequalities with absolute values		2010-12-01
		ryan pose la question : Good day! We we're given this assignment in algebra concerning linear inequalities with absolute value. In this number I'm confused how to isolate the absolute value, considering there is a variable in the absolute value and there is a variable in the outside. 2+5 |4-3t|+t ≤ -3-4t Penny Nom lui répond.
	Bbippities, bops, and boos		2010-11-05
		Stacey pose la question : six bippities equal three bops,and six bops equal two boos. How many boos are there in one bippity,one bop, and one boo?? Stephen La Rocque lui répond.
	4 > -3m-7 >= 2		2010-06-05
		pamela pose la question : The question is 4>-3m-7>=2 Penny Nom lui répond.
	6 items are taken 3 at a time		2010-04-12
		Kristen pose la question : Explain the three different scenarios that could occur and would result in the following number of outcomes when 6 items are taken 3 at a time. Give real-life examples. a. 63 = 6 x 6 x 6 = 216 possibilities b. 6! / (6 - 3)! = 6 x 5 x 4 = 120 possibilities c. 6! / (6 - 3)! 3! = 20 possibilities Tyler Wood lui répond.
	Frank makes picture frames		2010-02-20
		Carol pose la question : Frank makes picture frames his revenue from sales is R=$13.60x for frames sold. The cost making frames is C=$5.80x+$120 for frames made. What is the minum number of frames Frank must make and sell in order for his revenue to be greater than his costs. Penny Nom and Melanie Tyrer lui répond.
	1/a + 1/b + 1/c < 1		2010-02-01
		Mrityun pose la question : suppose a,b and c are natural numbers such that 1/a + 1/b + 1/c < 1. Prove that 1/a + 1/b + 1/c < = 41/42. Penny Nom and Claude Tardif lui répond.
	Growth rates		2010-01-26
		Bhavya pose la question : Dear Sir/Ma'am, I read in the text book that the growth rates of these 3 functions are as below- n2/3 < n/lg n < n0.99 I tried the substitution method to check the correctness of this. But it gets really tough as n increase. Is there any simpler way to understand the correctness of these growth rates? Thanks and Regards, Bhavya Robert Dawson lui répond.
	A trig identity		2010-01-24
		Natalie pose la question : hi, i need help proving the following trig identity. i cant seem to figure out how to do it. thanks so much. (1+sin2x)/cos2x = cos2x/(1-sin2x) Penny Nom lui répond.
	Probability, counting and cards		2010-01-15
		Julie pose la question : Hello, Select a card from the deck(card deck of 52 cards). Place the card back in the deck. What is the probability that both cards will be black? Is it 25/104, 24%? Select a card from the deck. Do not replace the card. Select another card. What is the probability that a red and a face card are the two cards you selected? Is it 2/221, .9%? Remove the red cards from the deck and assume that the remaining cards have been shuffled: select a card from the remaining deck. Place the card back in the deck. Select another card. What is the probability that both cards will be black? Is it 26/26 x 26/26= 1 x 1 = 1 , 100%? Select a card from the remaining deck. Do not replace the card. Select another card. What is the probability that a red 3 and a face card are the 2 cards you selected? Is it 0/26 x 6/26 = 0, 0%? Seperate 12 face cards from the rest of the deck. Assume that the face cards have been shsuffled. Select 3 cards from the pile of face cards. How many different arrangements can be made by selecting 1 of each card (jack, king, queen) from the pile? is it 1/4 x 1/4 x 1/4 x 1/4 = 1/64? How many different ways are there of selecting the queen of clubs, then the king of diamonds, and then the jack of hearts from the pile? Is it 1/12 x 1/12 x 1/12 = 1/1728? Robert Dawson lui répond.
	A trig identity		2010-01-05
		Christine pose la question : I need help with this whole paper here is one problem csc^2x-cot^2x/1-sin^2x=sec^2x by the ^2 i mean squared pleease Penny Nom lui répond.
	sin x / 1+ cos x = csc x - cot x		2009-11-18
		Mansi pose la question : i need a hint on how i could prove the following identity: sin x / 1+ cos x = csc x - cot x Harley Weston lui répond.
	Probability		2009-09-27
		Ed pose la question : My mother died 3 years to the day after her daughter died. what are the odds of that happening by chance? thanks Chris Fisher lui répond.
	2(x-4)>-4+2x		2009-08-27
		jorna pose la question : 2(x-4)>-4+2x Penny Nom lui répond.
	Inequalities		2009-07-22
		Sindhu pose la question : prove that 4^79 < ( (2^100) + (3^100) )< 4^80 ? Robert Dawson lui répond.
	Solve -1<5-2x<10 for x		2009-05-12
		Helen pose la question : solve the following inequality for x -1<5-2x<10 Te less then sign by the one, should be less then or equal to. Stephen La Rocque and Penny Nom lui répond.
	An inequality with logs		2009-03-06
		Indrajit pose la question : (x/10)^(logx - 2)<100..........how to solve this one?? Stephen La Rocque lui répond.
	An annuity		2009-02-27
		Jules pose la question : R 20 000 is deposited in the bank,at the end of each year R 5 000 is withdrawn from it, the interest is 13 percent compounded monthly. Calculate how many years that person will be able to use his/her money ? Stephen La Rocque lui répond.
	How can other infinites can be larger than each other?		2009-02-17
		Justin pose la question : Hello again, I was just wondering even in the context of set theory, how can other infinites can be larger than each other, I thought infinity itself is the largest possible quantity? Justin Victoria West and Robert Dawson lui répond.
	Solving an equality		2009-02-10
		Deborah pose la question : 2(v+10)<18 Penny Nom lui répond.
	Saving for his daughter's education		2009-01-15
		George pose la question : To save for his daughter’s university education at the end of each month Mr McLean sets aside £50 in a savings scheme paying 10% p.a. compounded monthly. He begins saving when his daughter is 3 years old. How much will he have saved by the time his daughter is 18? Harley Weston lui répond.
	Trig identities		2009-01-05
		Michael pose la question : 1) Determine if the following is an identity. If it is, prove it, If it isn't state it. tan x + cot x = sec x * csc x and 1 - (cos^2) x = 1+ (cot^2) x Robert Dawson and Harley Weston lui répond.
	Solving an inequality		2009-01-02
		jarred pose la question : 3x+8>2 Penny Nom lui répond.
	Student who is inverting digits		2008-12-09
		Tammie pose la question : Do you have any strategies for addressing inversion of digits in two digit numbers. For example - The student the teacher is working with will write "14" and the number is 41. She has tried highlighting, practice writing numbers, and hundreds charts and finding patterns. Help! Thank you! Robert Dawson and Victoria West lui répond.
	Two inequalities		2008-10-08
		s pose la question : 3y > 4x 2x-3y>-6 Stephen La Rocque lui répond.
	Three addends that sum to ten		2008-09-13
		Alfred pose la question : How many probabilities are there to have 3 addends to get a sum of 10? What is the formula? Harley Weston lui répond.
	How do you solve for x when (x^4)-x is greater than or equal to 0?		2008-08-14
		Katie pose la question : How do you solve for x when (x^4)-x is greater than or equal to 0? Penny Nom lui répond.
	-5x < 25+10		2008-04-25
		Courtney pose la question : What is the answer to -5x<25+10 Stephen La Rocque lui répond.
	How is the square root of 3/4 is greater than 3/4?		2008-04-22
		Serena pose la question : How is the square root of 3/4 is greater than 3/4? Penny Nom lui répond.
	Two consecutive odd numbers		2008-04-01
		prinsilla pose la question : of all pairs of consecutive odd integers whose sum is greater than 75. find the pair whose sum is least? Stephen La Rocque lui répond.
	2 tan theta /(1 + tan^2 theta) = sin 2theta		2008-03-25
		Charmaine pose la question : I'm having trouble on where to begin proving identities. I must prove that (2 tan theta / 1 + tan^2 theta) = sin 2theta Penny Nom lui répond.
	Drawing blocks from a box		2008-02-11
		Inez pose la question : A box contains 3 red blocks and 1 green block. A block is chosen without looking and not put back. Then another block is chosen. What are the possible outcomes? Penny Nom lui répond.
	Small group activities		2008-02-11
		Rain pose la question : I need to have a meet and greet with 40 people and need to do small group activities so that each person meets every other person but only once. I'm not into math, need someone to tell me how many groups I would need to have? Victoria West lui répond.
	Blood type probabilities		2007-12-01
		Noelle pose la question : Question from Noelle, a student: Blood Type % Population O+               37.4% O-                 6.6% A+               35.8% A-                 6.3% B+                8.5% B-                 1.5% AB+              3.4% AB-                 .6% I need to make another table showing the probablility of meeting someone in each of the eight blood groups. I'm not sure how to find the probability with percentages. Thanks for your help. Penny Nom lui répond.
	Multiplying an inequality by a negative number		2007-11-27
		Lisa pose la question : Why is it that you have to switch the sign of the inequality when you divide or multiply by an negative number to solve for a variable? Penny Nom and Walter Whiteley lui répond.
	A normal distribution problem		2007-09-27
		m.j. pose la question : Car Loan Rates The national average for a new car loan was 8.28%. If the rate is normally distributed with a standard deviation of 3.5%, find these probabilities. a. One can receive a rate less than 9%. b. One can receive a rate less than 8%. Harley Weston lui répond.
	Variable expressions - part 2		2007-09-04
		lisa pose la question : how do I write a variable expression for word phrase example x less than = 2 or 2 less than p 4 fewer than job please help Penny Nom lui répond.
	Combining probabilities		2007-08-20
		Arul pose la question : Xavier, Yvonne, and Zelda each try independently to solve a problem. If their individual probabilities for success are 1/4, 1/2 , and 5/8 , respectively, what is the probability that Xavier and Yvonne, but not Zelda, will solve the problem ? Stephen La Rocque lui répond.
	Trig identities		2007-07-30
		Suzanne pose la question : I'm a UR University Graduate (with High honours!) but not in math: I'm taking GeoTrig, Sk Learning version, and the text is poorly written. But I was flying through the material until I hit the Trig Identities. I just don't get WHY we have them, why we should know them? What good is this "theory". All that "simplying" rarely yeilds a simple-er version! Also, give me advice for how to study them. Thanks Suzanne Harley Weston lui répond.
	Trig identities		2007-07-05
		Alex pose la question : Use the identities tan_=sin_/cos_ and/or sin*_+cos*_=1 to simplify 1-cos*_ Stephen La Rocque lui répond.
	Simultaneous inequalities		2007-06-18
		Freddy pose la question : Watson Electric has production facilities in Valley Mills, Marlin,and Hillsboro. Each one produces radios,stereos,and TV sets. There production capacities are Valley Mills: 10 radios, 12 stereos, and 6 TV sets per hour Marlin: 7 radios, 10 stereos, and 8 TV sets per hour Hillsboro: 5 Radios, 4 Stereos, amid 13 TV sets per hour QUESTION How many hours should each plant be scheduled to fill an order of 1095 radios, 1230 stereos, and 1490 TV sets? Stephen La Rocque lui répond.
	An inequality		2007-06-16
		jerry pose la question : Two real numbers a and b satisfy the equation ab=1. i) Prove that a^6 + 4b^6 >4 ii) Find out whether the inequality a^6 + 4b^6 >4 holds for all a and b such that ab = 1 Stephen La Rocque lui répond.
	A linear system		2007-03-23
		Adam pose la question : Solve the system by graphing: 4y>6x -3x+2y<-6 Stephen La Rocque and Penny Nom lui répond.
	3x > -12		2007-01-11
		Jen pose la question : In the following inequality, would one flip the inequality symbol? 3x > -12 Stephen La Rocque lui répond.
	x + 2y < 6		2007-01-06
		Mike pose la question : I understand solving by graphing, but i am having trouble with the graphing of in equalities. i solved : x + 2y<6 Penny Nom lui répond.
	The proof of inequality by mathematical induction		2006-12-07
		Carol pose la question : S(n) = 2^n > 10n+7 and n>=10 Stephen La Rocque lui répond.
	Linear inequalities		2006-12-01
		Susan pose la question : how would I graph a linear inequality of y>3. Stephen La Rocque lui répond.
	2x > -6 and x - 4 < 3		2006-11-27
		Alyssa pose la question : 2x > -6 and x - 4 < 3 , i need to know how to solve it and how to graph it. Stephen La Rocque lui répond.
	Inequalities		2006-10-03
		Maleeha pose la question : a)Use algebra to find the set of values of 'x' for which x(x-5)>36. b)Using your answer to part a, find the set of values 'y' for which y2(y2-5)>36 Penny Nom lui répond.
	Two trig questions		2006-04-04
		mandy pose la question : I have a few questions that I need help with for my precal class in college. The following have to prove the trigonometric identities: cos4x + 2cos2x sin2x + sin4x = 1 sin4x - cos4x = 1 - 2cos2x thanks you, Stephen La Rocque lui répond.
	cos(3X)		2006-03-29
		Joshua pose la question : I'm having trouble proving that cos(3X)=cos3X -(cosX)(sin2 X) Penny Nom lui répond.
	A pair of trig equations		2005-12-05
		Kevin pose la question : I am trying to solve for A and B but haven't been able to find a trig identity that will help me. 1.414 = .5cosA + cosB .5 = .5sinA - sinB how do I solve this? Penny Nom lui répond.
	The distributive property		2005-11-12
		Jennifer pose la question : I am trying to help my daughter . How do you name the property for 6(4w - 3z)=(6 x 4w)-(6 x 3z) Penny Nom lui répond.
	Open dots and closed dots		2005-09-29
		Cynthia pose la question : When graphing the solutions of an inequality, what is the difference between an open dot and a closed dot? Penny lui répond.
	Graphing a linear inequality		2005-08-26
		Gina pose la question : When graphing a linear inequality, how do you know if the inequality represents the area above the line? Penny Nom lui répond.
	50^99 and 99!		2005-05-23
		Romel pose la question : Which number is greater, 5099 or 99! Claude Tardif lui répond.
	Graphing an inequality		2005-05-02
		Janice pose la question : I need to know how to graph inequalities. I need to know just abot everything. From graphing an equation to shading. Leeanne Boehm lui répond.
	An inequality		2005-03-31
		Ambross pose la question : demostrate the following inequality: 2.Sqrt(K+1)-2.Sqrt(k)<1/Sqrst(K)<2.Sqrt(K)-2.Sqrt(k-1) Penny Nom lui répond.
	Graphing inequalities		2005-02-15
		Melanie pose la question : Solve and Graph the following variable inequalities: y<2x+4 y>-2x+6 3x+4y<-24 4x-6y>-24 Penny lui répond.
	0.999..., asymptotes and infinity		2004-12-17
		Mike pose la question : My Name is Mike and I teach high school. I had a student ask me to explain why .9 repeating is equal to 1. Then he asked me about an asymptote, or why a parabola or any other curve for that matter can continually approach a value (like 1) and yet never attain a value of 1. He is thinking that these two should represent the same concept and yet they contradict each other. Do you have a solid explanation for him? Of by the way he is a 7th grader. Great little thinker!!!!! Claude Tardif and Harley Weston lui répond.
	Probabilities in poker		2004-11-04
		Ben pose la question : Please can someone tell me the odds of getting a royal flush while playing texas hold em. Please can you also let us know the odds of a royal flush while playing texas hold em if you must be dealt two of the needed cards. Chris Fisher lui répond.
	Square roots and inequalities		2004-10-25
		Waheed pose la question : Q1. What is the simplest way of finding a square root of any number using just a pen and paper? (I am asking this question because I browsed a few sites a didn't find any method that is simpler than the one I use. so I am just curious.) Q2. Is it possible that you take an equation and turn it into an inequality by performing same mathematical operations on both sides? Claude Tardif and Penny Nom lui répond.
	An ineqlality with absolute values		2004-07-05
		Uneeza pose la question : abs(x2 - 4x) > 3 Claude Tardif lui répond.
	Undercapatalized small businesses		2004-06-26
		Greg pose la question : Suppose that 30% of all small businesses are undercapitalized. 40% of all undercapitalized small businesses fail and 20% of all small businesses that are not undercapitalized fail. A small business is chosen at random. The probability that the small business succeeds if it is undercapitalized is? Greg Penny Nom lui répond.
	Different infinities		2004-05-27
		Plober pose la question : How can I explain to a friend (in a bar, using as a pen and a paper napkin) that the integer's infinity is 'smaller' than the irrationals's one? The demo I tried was that you couldn't match the integers with the real numbers between 0 and 1 (that 0.xxxxx replacing the Nth number from a different one... that demo), but she used my argument >:| saying that you can add one to the integer's infinite, and the number I was creating was only one more... I can't think of any other way, and I KNOW the real's cardinality is greater than the integer's one Claude Tardif and Penny Nom lui répond.
	Some trig expressions		2004-05-23
		A student pose la question : Prove: sin A + sin B = 2sin(A+B/2)cos(A-B/2) cos A - cos B = -2sin(A+B/2)sin(A-B/2) cos A + cos B = 2cos(A+B/2)cos(A-B/2) sin A - sin B = 2cos(A+B/2)sin(A+B/2) Penny Nom lui répond.
	Solving inequalities		2004-05-03
		Joe pose la question : Let x be a real number find and graph the solution to the following sentances: 2x-10+9 4X+2<15 5X+3>(x-1) Peny Nom lui répond.
	Probabilities and olivies		2004-02-14
		Annetta pose la question : A bowl contains five green olives and eight black ones. Wilma sticks a fork into a bowl and brings out two olives. What is the probability that she gets one green and one black olive? Harley Weston lui répond.
	Inequalities		2004-01-08
		Michael pose la question : How do you use inequalities in your job and in your everyday life? Penny Nom lui répond.
	An inequality whose solution is all points		2003-11-25
		Katie pose la question : Hi my name is Katie and I am in the 9th grade and I would like help on this question. Is it possible to have a system of inequalities whose solution is all points? 1.I need to know why (explanation) 2.how to do it(example) Penny Nom lui répond.
	Cathy's Clothing		2003-07-15
		Cathy pose la question : I am supposed to write a practical and useful word problem that would use the following algebriac inequality to solve it: 12x + 25 > 15x + 10. State the quanity that represents x and solve the inequality. Penny Nom lui répond.
	A binomial probability		2003-04-30
		Erica pose la question : In a biathlon, athletes shot at 20 targets. A particular athlete had a probability of 0.18 of missing a target. Assuming a binomial distribution, what is the probability, to the nearest thousandth, that the athlete hit exactly 16 targets? Andrei Volodin lui répond.
	A fractional inequality		2003-04-08
		Jessica pose la question : Solve for x. Write in interval notation. [(x2)-9]/[x-5] >= 0 Penny Nom lui répond.
	y < 2x + 1		2003-03-01
		Erika pose la question : how can I solve and graph y<2x+1 and which side in the graph should i shade after i finish solving my inequality? Penny Nom lui répond.
	The horse race		2002-11-19
		Pat pose la question : The Horse Race Three horses run a race. In how many different ways can the three horses finish the race if ties are allowed? Penny Nom lui répond.
	An identity in trigonometry		2002-10-17
		Alex pose la question : I really need help with proving this identity. (1+cosx+sinx)/(1+cosx-sinx) = secx + tanx Penny Nom lui répond.
	Three algebra problems		2002-10-13
		Veronica pose la question : Solve the following inequality: 5(xsqured-4)/(xto the 5th(2x-5)to the 3rd) < or equal 0 Solve the following equations for all roots square root of x+2=-1+square root of 2x+3 what's ZERO FACTOR PROPERTY??? The hypotenuse of an isosceles right triangle is 7cm. long. Determine the lenghts of the other sides. Leeanne Boehm lui répond.
	When does an inequality represent the area above the line?		2002-08-25
		Tamara pose la question : How do you determine that an inequality represents the area above the line and when do you include the line in the solution? Penny Nom lui répond.
	Some inequalities		2002-07-25
		A student pose la question : 1)-5 <= -3X+1 < 1 2)4X-2 < 6 OR X+2 > 9 Penny Nom lui répond.
	The median with ties		2002-02-27
		Marcel pose la question : What, exactly, is the proper way to determine the median of a set of numbers when doubles or triples of a number are part of that set? Do the doubles count as two and the triples three, or does each count only as one toward determining the median. Harley Wston lui répond.
	Inequalities		2001-11-13
		Pat pose la question : When writing the solution to an inequality, why is the solution written in set notation? {x/ } Penny Nom lui répond.
	Theme day		2001-10-14
		A teacher pose la question : I woulld like a math theme for a theme day in a high school, grades 9-12. Our last theme was fractal fest. Penny Nom and Claude Tardif lui répond.
	Binomial probabilities		2001-10-08
		Amna pose la question : I had a few binomial probability questions which I can not use from the tables as instructed: If 60 % of television viewers are watching a certain program, what is the probability tha tmore than half of those selected in a random sample of five will be watching the specified program? If it is known according to Mendel's Law, that we can expect in teh long run to have 3 white, 1 brown rabbits in every 4 rabbits of a certain type, what is the probability that 2 in a litter of 3 will be white? On the average, 2% of the items sold in a department store are returned for refunds. what is the probability that of its next five items sold, at most two will be returned for refunds? Leeanne Boehm lui répond.
	A linear inequality		2001-09-17
		Eric pose la question : How can I solve |x + y| + |x - y|< =6? Penny Nom lui répond.
	Don't worry too much about your difficulties in math...		2001-09-07
		Matt pose la question : Do you know who said,"Don't worry too much about your difficulties in math, I assure you that mine are still greater"? Thanks for your help. this for extra credit and I can't find it ANYWHERE! Penny Nom lui répond.
	Probabilities and dice.		2001-05-04
		Carmen pose la question : Hi! My name is Carmen! I am a member of a grade 5 class in Edmonton, AB. We were talking about probability in math, and I was wanted to know what the probability (odds) of rolling two sixes would be rolling two dice? If it is not to diffucult could you tell me what the probability (odds) of rolling any number with two dice were? Andrei Volodin and Penny Nom lui répond.
	Winning percentages		2001-02-21
		Mike pose la question : TEAM A WINS 55% OF GAMES PLAYED TEAM B WINS 40% OF GAMES PLAYED AGAINST THE SAME OPPONENTS WHAT WINNING PERCENTAGE SHOULD BE EXPECTED WHEN TEAM A PLAYS TEAM B (NEUTRAL SITE)? Harley Weston lui répond.
	Two inequalities		2001-02-12
		A student pose la question : If 3 Leeanne Boehm lui répond.
	Which fraction is greater?		2001-02-01
		Carol pose la question : Hello My name is Carol I am a student teacher! I am asked to aproach these students on their problems. I am unsure of how to explain to them that these are wrong. Can you help? Thanks. Iris claims that if we have two positive rational numbers, the one with the greatest numerator is the greatest. Shirly claim that if we have two positive rational numbers, the one with the greatest denominator is the least. Thanks! Claude Tardif lui répond.
	A problem with distance		2001-01-16
		A student pose la question : For what values of a is the distance between P(a, 3) and Q(5, 2a) greater than the square root of 26. Penny Nom lui répond.
	< and > Which one is which?		2000-12-06
		Alice pose la question : This grandmother forgot and wants to know the correct for greater and the one for lesser..... the two are < and > Which one is which? Penny Nom lui répond.
	False Positives		2000-10-29
		James pose la question : A rare disease infected 1 in 1000 people in the population. A test for the disease is accurate 99% of the time when given to an infected person and also when given to a heathy person. Fill out a two-tier tree diagram and find the probability of the false positive(i.e the conditional probabily of being healty even when tested postive by the test) Comment on the result? ... Penny Nom lui répond.
	Larger and smaller		2000-10-10
		Nicole pose la question : which one of these arrows < , > points to the greater number? which arrows points to the smaller number. Penny Nom lui répond.
	Inequalities		2000-09-02
		Jennifer pose la question : I would like some help with equations and inequalities. My first inequality is 3p-6>21 and 3q+11+8q>99. Paul Betts lui répond.
	Graphing an inequality		2000-08-02
		Lori pose la question : How do I find x and y and graph this problem 3x + y < 5 Penny Nom 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.
	Proving a trigonometric identitiy		1999-12-17
		Ryan pose la question : I need to figure out how to prove that sec2x + csc2x = sec2x csc2x. I am not sure where to start out with it and whether I should use reciprocal, quotient, or pythagorean. Penny Nom lui répond.
	Inequalities and absolute values		1999-12-07
		Austin Cline pose la question : Solve for x: The absolute value of x-1 is less than or equal to the absolute value of x-2 Harley Weston lui répond.
	|6-2x|<4		1999-10-20
		Tchilco pose la question : Solve |6-2x|<4 Harley Weston lui répond.
	A trig problem		1999-06-03
		Stu Barnes pose la question : cos(theta) / 1+ sin(theta)=sec(theta)-tan(theta) I've being having trouble with this one on my correspondance course. Harley Weston lui répond.
	Work jobs		1999-04-19
		Cindy Miller pose la question : Hi. I'm a college student, majoring in Elementary Education. This semester I am taking a math class for elementary school teachers. I'm not sure if you can help out, but here is what I need. For the class, I am supposed to make 10 work jobs for students. Simple things that teach math that students can work on individually, for example after finishing a test. If you have any suggestions, I would really appreciate it. Penny Nom lui répond.
	Reversing the direction of an inequality.		1999-03-06
		Mallory White pose la question : If the Problem was -4a plus -5 is less than or equal to 14, why would you change the sign to greater than or equal to? Jack LeSage and Harley Weston lui répond.
	Rowing on the Charles River.		1997-09-17
		Fawwaz Muraisi pose la question : On the Charles River in Boston, the Harvard bridge and the Longfellow bridge are 1 mile apart. The MIT crew starts rowing upstream at the Longfellow bridge. As the crew passes under the Harvard bridge, the coxswain's hat falls into the river. Ten minutes later, the coxswain notices and turns the boat around instantaneously. He has t he crew row back to get it, rowing at the same constant rate. By the time the team reaches the hat, they are back at the Longfellow bridge. How fast is the river flowing? Harley Weston lui répond.
	Graphing Inequalities of Conic Sections		1997-03-24
		James Sheldon pose la question : I'm trying to graph Systems of Conic Sections with inequalities, but I'm running into problems on which area to shade: x^2+y^2 is greater than or equal to 16 xy > 4 So I graph these two equations, and then my teacher said to substitute a point into it but I'm still not sure how to do it... Penny Nom lui répond.
	How do you graph these inequalities?		1996-05-17
		Robert pose la question : How do you graph the inequalities 5+gg, and g+h>6 on one coordinate plane? Harley Weston and Maxine Stinka lui répond.
	A trig identity		1996-03-11
		Azmat Hussain pose la question : Is there an easier/another way to prove the trig identity cos(a+b) = cos(a)cos(b)-sin(a)sin(b)? Penny Nom lui répond.
	Trig identities		1995-11-30
		Azmat pose la question : Why do we work on the two sides of a trig identity separately? Harley Weston lui répond.

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