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	y = |x| - 1		2018-11-30
		alexis pose la question : what does this mean y=|x|-1 Penny Nom lui répond.
	Converting decimals to common fractions		2018-05-08
		Ruth pose la question : what does the 0 represent in .018 versus the decimal .180? As in, changing these to fractions? Thank you. Penny Nom lui répond.
	Positive and negative values of a function		2018-01-30
		Grayson pose la question : f(x)=x^6-x^4 Interval: ( negative infinity, negative one ) Test Value: negative two Function Value f(x): positive forty eight Interval: ( negative one, zero ) Test Value: negative one Function Value f(x): zero Interval: ( zero, positive one ) Test Value: positive one Function Value f(x): zero Interval: ( positive one, positive infinity ) Test Value: positive two Function Value f(x): positive forty eight What is the sign of f(x) for each Interval? Penny Nom lui répond.
	A five digit number		2016-10-12
		Massa pose la question : Explain why any four digit number is less than any five digit number? Penny Nom lui répond.
	The modulus of a complex number		2016-07-29
		Cheyenne pose la question : There's a question on my Summer Assignment I cant figure out. Here it is: Find the absolute Value of the complex number. -5i Please help? Penny Nom lui répond.
	Maximizing the area of a two lot region		2016-04-03
		yousef pose la question : A man wishes to enclose two separate lots with 300m of fencing. One lot is a square and the other a rectangle whose length is twice its width. Find the dimensions of each lot if the total area is to be a minimum. Penny Nom lui répond.
	A place value drawing		2016-02-24
		Kristin pose la question : Make a place value drawing of a number that has double the number of tens as ones and three times the number of thousands as hundreds write the number. Penny Nom lui répond.
	A concrete container		2015-11-12
		Karstin pose la question : The exterior of a concrete container will be 10 feet by 8 feet by 4 feet tall. The walls and the bottom are 6 inches thick. What will it cost to construct it if concrete is $98.95/cubic yard? Penny Nom lui répond.
	A six digit number		2014-06-30
		anupam pose la question : hi, my daughter asking a solution for the below question, kindly help. Write the smallest 6 digit number wit digits ( 2,4,3,0,5,7). plz this is an urgent requirement. regards, anupam Penny Nom lui répond.
	A table of values		2014-03-27
		Marisol pose la question : A table value X 0,1,2,3,4,5,6 and Y 3,7,11,15,19,23,27 . what relationship of X to Y is represent by which equation? A . y= 4x. B y =x+3 . C y =4x+3 or . D y =4x-3 Penny Nom lui répond.
	$9.50 in coins		2014-01-15
		dana pose la question : you have $9.50 in coins. it has twice as many nickels as quarters and three times as many dimes as nickels. how many of each coin do you have? Penny Nom lui répond.
	What is the value of |2((i)^(1/2))|?		2013-07-22
		Delilah pose la question : What is the value of |2((i)^(1/2))| ? i.e. absolute value of 2 multiplied by square root of i. Penny Nom lui répond.
	Transposition error		2012-12-03
		Carol pose la question : What is the correct term for when a child writes 61 instead of 16, or 83 for 38--when they switch the place values of a number? Chris Fisher 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.
	Expected value		2012-08-25
		melanie pose la question : The probabilities are 0.24 , 0.35 , 0.29 , and 0.12 that a speculator will be able to sell a subdivision lot within a year at a profit of P120, 500 , at a profit of P80,000 , at a profit of P40,000 , or at a lost of P60,000 respectively . What is his expected profit ? 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.
	Expected value		2012-02-24
		Lara pose la question : A life insurance company sells a $250,000 1-year term life insurance policy to a 20-year-old male for $350. According to the National Vital Statistics Report the probability that the male survives the year is 0.998734. Compute and interpret the expected value of this policy to the insurance company. I'm very confused on how to do this. I assume x is the profit the insurance company makes in the year of $350 but beyond that I don't know what to do. Thanks. Penny Nom lui répond.
	Rounding		2011-12-14
		seth pose la question : A decimal number rounded changed to 23.7 after it was rounded. Give a decimal number that is less than 23.7 and another that is greater than 23.7 that each round to 23.7. Explain to what place each number was rounded. 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.
	Expanded form		2011-10-12
		Chris pose la question : Write this number in expanded form 4 326 180 501 Thanks!!! Penny Nom lui répond.
	Place value		2011-09-20
		Ivana pose la question : the digit in the ones place is a hand with out a thumb(4) 2) the digit in the thousands place is 2 less than the digit in the one's place. (4-2= 3) the digit in the ten's place is the sum of 2 and 6 (2+6= 4) the digit in the hundreds place is what you get when you get when you subtract 5 from the digit in the ten's place (ten's-5= what is the number? Penny Nom lui répond.
	What does 163,100,000 look written in words?		2011-03-22
		Alicia pose la question : What does 163,100,000 look written in words? Penny Nom lui répond.
	The greatest value of 5 – | x – 3|		2011-01-16
		pranav pose la question : What is the greatest value of 5 – | x – 3 | for any integral value of x. --< br /> PRANAVM Penny Nom 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.
	A 35% profit		2010-11-19
		Ana pose la question : You have a stamp collection and make a 35% profit by selling it on E-Bay for $2700. Find the original cost of the collection by using the formula:New value × 100 / 100 + percent change = Original value Stephen La Rocque lui répond.
	|x+ 3| = |x-1|		2010-09-21
		Jack pose la question : |x+ 3| = |x-1| Penny Nom lui répond.
	Compound interest		2010-06-01
		Kenneth pose la question : Hello: I have a question regarding the following compound interest and future value calculation. Year 1 P + rP equals balance after the first year. Year 2 (P + rP) + r(P + rP) equals balance after the second year. Year 3 ? equals balance after the third year. This question is in two parts. 1. What would follow for year three? 2. I know that a pattern will develop. What will it be so that I can determine the extended pattern for following years ? Penny Nom lui répond.
	Percentage increase		2010-05-20
		Rebecca pose la question : Question from Rebecca: In 2008 my land was valued at $84,000. In 2009 my land was re-valued at $235,000.00. What is the percent increase between the two values? I want to be able to express "the value was increased by x%." Harley Weston lui répond.
	The value of 1 acre		2010-05-13
		Rebecca pose la question : If 38,121 sq feet equals $19,846.58 at 75% of its current value, what would the value of 1 acre be at 100% of value? Penny Nom lui répond.
	The rejection region		2010-05-01
		Mong pose la question : In Tests of Hypothesis, what is the decision when the test statistic we compute from the sample information is exactly equal to the critical value? that is, we reject null hypothesis or do not reject it? Thanks! Chris Fisher lui répond.
	Modelling the roof of a house		2010-03-23
		Sandi pose la question : This question has been haunting my dreams at night. It states the cross section of the roof of a house is modelled by the function y= -5\12|x-12|+5, where y>0 or y. Now I'm suppose to graph the function. b) Find the slope, height, length of sides, and base of the isosceles triangle. c)Explain what transformation must be applied to the graph of y=|x| to obtain the graph of y= -5\12|x-12|+5, where y>0 or y=0. 1st I put the equation into my calculator and graphed it. I got 10 for the height. We have had 2 sub teachers this past week. The first one told me the height should be 12 the other one told me 5. So I'm really confused. If I use my 10 units as height and the Pythagorean Theorem I get my sides to be 26 units the base 48 and my slope I calc to be 5/12. Both teachers are pretty sure I'm wrong and they are right but we all have different answers. Please help put this problem to rest so I can rest soundly at night. Thank you for your time. Penny Nom lui répond.
	|-3|-|-4|		2010-02-10
		Nick pose la question : I have another question. This is how i solved it and i know its suppose to be a negative. z= |-3|-|-4| Penny Nom lui répond.
	Excluded values		2009-11-14
		Janie pose la question : I have to State the excluded values for this equation and then solve, but not sure how to do this. Here is the problem (x+6)/x+3=(3)/(x+3)+2 Harley Weston lui répond.
	f(x) = |3x - 6| + 1		2009-10-26
		kelsey pose la question : find the coordinates of the vertex f(x)= l3x-6l + 1 Penny Nom lui répond.
	The worth of a word		2009-09-23
		Kaliegh pose la question : If each letter of the alphabet is worth one cent more than the previous letter and the letter "a" is worth one cent. What words would have a worth equal to 1 cent,10 cents,50 cents,87 cents 64 cents and $1.00? Robert Dawson lui répond.
	y=2x+1 and y=2x-1		2009-08-28
		MARICELA pose la question : Need help of how to work this problems y=2x+1 and y=2x-1 First of all what is the difference? Second I think is easy just to work with the X y with the line in the middle but how do you get the numbers for each side. Penny Nom lui répond.
	|1/(x+1)| <1		2009-05-16
		Nazrul pose la question : What is the solution of absolute value of (1/(x+1))<1? Please explain. Stephen La Rocque lui répond.
	Expected value		2009-04-11
		jp pose la question : you pay $.50 and pick a four-digit number. The state chooses a four-digit number at random and pays you $2500.00 if your number i chosen. What are the expected winnings from a $.50 Pick 4 wager? Stephen La Rocque and Harley Weston lui répond.
	y = |x| - 4		2009-01-28
		tiana pose la question : how do you find where to plot Y in a problem that states y=|x| -4? Robert Dawson and 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.
	The table of values for y=3x-10		2009-01-09
		Jade pose la question : How can I know the value of x for y=3x-10 in this table of values pls. include the deatails if x=-2 y=-16 if x=3 y=-1 but how if y=2 what is x Penny Nom lui répond.
	Separating variables		2008-11-04
		Terry pose la question : by separating variables solve the initial value problem (x+1)y' + y = 0 y(0) = 1 Harley Weston lui répond.
	Absolute value		2008-11-04
		Shane pose la question : What is the absolute value of -4 Penny Nom lui répond.
	What number has 5 hundreds and 12 tens?		2008-10-21
		kellee pose la question : What number has 5 hundreds and 12 tens? I would say the number is 620. But, my daughter thinks that is wrong. Harley Weston lui répond.
	What is the exact value of pi?		2008-09-27
		mahesh pose la question : what is the exact value of pi. 22/7 is accurate value of pi, if not then how can i find out the exact pi value. Harley Weston lui répond.
	Extraneous solutions		2008-09-25
		crystal pose la question : /6x+7/=5x+2 Penny Nom lui répond.
	The minimum value of f(x)=maximum{x,x+1,2-x}		2008-09-21
		Saurabh pose la question : The minimum value of the function defined by f(x)=maximum{x,x+1,2-x} ? Penny Nom lui répond.
	The Intermediate Value Theorem		2008-09-16
		A. pose la question : When dealing with the intermediate value theorem you have the function x^2. It bounces on the axis so you can't tell if lies on the interval [a,b]. So is the ivt proven false or does the ivt not tell you all the roots for sure. Harley Weston lui répond.
	Hundreds, tens, and units digits		2008-09-05
		Cynthia pose la question : write an expression for the value of a three-digit number whos hundreds, tens, and units digits are x, y, and z, respectively Penny Nom 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.
	Excluded values		2008-05-09
		Andrew pose la question : Finding Excluded Values j+1 ---- 2j-6 Penny Nom lui répond.
	Excluded values		2008-04-16
		Jenny pose la question : Give the excluded values for the fraction m+5/mn+3m m= n= Penny Nom lui répond.
	f(x) =ax^blnx		2008-04-13
		charles pose la question : supposef(x) =ax^blnx is a real- valued function. Determine exact values(not decimal approximations) fro nonzero constants a and b so that the function f has a critical point at x=e^3 and a maximum value of 1/2e Harley Weston lui répond.
	Expected value and standard deviation		2008-03-19
		Patrick pose la question : Heres a question i cant figure out: a small airline company has only three flights per day. The number of delayed flights per day is regarded as a random variable, and I'm supposed to calculate the expected value and standard deviation of the number of delays. the probability distribution looks like: No. of Delays: 0 1 2 3 Prob. of delay: 05. 0.3 .1 .1 Harley Weston lui répond.
	Absolute value		2008-01-24
		Cara pose la question : Give the absolute value of this equation. {-3 + 1} - {5 - 7} note: the brackets are the absolute value lines. Penny Nom lui répond.
	Which expression gives the greatest value?		2007-12-18
		Jordan pose la question : 'Look at these expressions' n-2, 2n, n(squared), n over 2, and 2 over n (sorry I can't type the expressions out) A) Which expression gives the greatest value when n is between 1 and 2? B) Which expression gives the greatest value when n is between 0 and 1? c) Which expression gives the greatest value when n is negative? As you can see, this IS ONE question split in to three parts lol! Can you tell me how I go about tackling this question? I lost marks on the test because of not understanding the question. Stephen La Rocque lui répond.
	p-values and t-distributions		2007-11-13
		Don pose la question : I have a t-test statistic of 1.28 and a degree of freedom of 6. I know the p-value is .248 I cannot figure out how to calculate that value. I have used software to get it but I want to know how to calculate it using the t-distribution table. Harley Weston lui répond.
	Place value		2007-10-27
		eric pose la question : True or False: In the number 378, there are 3 hundreds, 7 tens, and 8 ones. Penny Nom lui répond.
	The largest number you can add ...		2007-10-26
		Dryden pose la question : What is meant by asking what is the greatest number you can add to that number without having to regroup in any place? Penny Nom lui répond.
	The average rate of change of a function		2007-10-11
		vern pose la question : Find the average rate of change of the function over the given interval. Compare this average rate of change with the instantaneous rates of change at the endpoints of the interval. f(X)=sinX for the inverval [0,pi/6]? Harley Weston lui répond.
	I have a 6 digits		2007-09-28
		Kim pose la question : I have a 6 digits. My hundred-thousands digit is 1 less that my ones digit, 8 more than my thousands digit, twice my tens digit, and 4 times my hundreds digit. My ten-thousands digit is 0. What number am I? Stephen La Rocque 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.
	A place value chart		2007-09-12
		glenwood pose la question : draw a million chart then place the following numbers in the proper place. one hundred and nine million, seven hundred and twenty-three Penny Nom lui répond.
	What number am I?		2007-08-11
		Belinda pose la question : What number am I? My millions digit is 4. My billions digit is two time = my millions digit. My hundred thousands digit is two more than my = millions digit and three more than my ones digit. My ten millions digit = is one less than my ones digit. My other digits are zero. Write my = short word form. Penny Nom lui répond.
	A statistics example		2007-08-02
		Claudia pose la question : A particular employee arrives to work some time between 8:00 am - 8:30 am. Based on past experience the Company has determined that the employee is equally likely to arrive at any time between 8:00 am - 8:30 am. On average, what time does the employee arrive? What is the standard deviation of the time at which the employee arrives? Find the probability that the employee arrives exactly at 8:12 am? Find the probability that the employee arrives between 8:20 am - 8:25 am? Har lui répond.
	sin|x| and cos|x|		2007-06-25
		Mac pose la question : Can anyone tell me whether sin|x| and cos|x| is differentiable at x=0 ? As far as i know, cos(x) and sin(x) is differentiable at all x. Penny Nom and Stephen La Rocque lui répond.
	Normal distribution		2007-05-24
		Paula pose la question : Consider a data set that is normally distributed. The mean of the data set is equal to 10,000. a.) Suppose that, for this data set, 10,625 has a "z-value" = 2.5. Solve for the standard deviation of the data set. b.) Solve for the "z-value" of 9,900. 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.
	Continuity of y = |x|		2007-05-02
		moulipriya pose la question : Is the curve y = | x | continuous everywhere? Penny Nom lui répond.
	Expected value		2007-03-30
		Katrina pose la question : A term life insurance policy will pay a beneficiary a certain sum of money upon the death of the policy holder. These policies have premiums that must be paid annually. Suppose a life insurance company sells a $250,000 one-year term life insurance policy to a 20-year-old male for $350. According to the National Vital Statistics Report, Vol. 47, No. 28, the probability the male will survive the year is 0.99865. Compute the expected value of this policy to the insurance company. Does the company expect to make money at this rate? Penny Nom lui répond.
	Write the interval in absolute value notation		2007-03-20
		Timothy pose la question : 1. Write interval in absolute value notation i) xE[0,9] ii) xE[-2,20] 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.
	The absolute value of imaginary and complex numbers		2006-12-11
		Keith pose la question : i don't get how to find the absolute value of imaginary and complex numbers here is an examples from the text book the answers are given but they don't show the work so i can follow along just show me the work please and explain how it is done problem 3+4i Stephen La Rocque and Penny Nom lui répond.
	What is the expected number of ripe and ready to eat watermelons		2006-11-29
		James pose la question : An agricultural cooperative claims 95 percent of the watermelons shipped out are ripe and ready to eat. If 20 watermelons are shipped out , what is the probability that the number of watermelon that are ripe and ready to is (i) exactly 14 (ii) more than 18 (iii) of the 20 watermelons that are shipped what is the expected number of ripe and ready to eat watermelons Penny Nom lui répond.
	y = |x| - 10		2006-11-03
		Pam pose la question : what is the process for finding the vertex point for an equation such as this, y= |x| - 10. Penny Nom lui répond.
	Place value		2006-10-12
		Sue pose la question : We have extended the place value chart out 14 places and want to know what comes after hundred trillions? Stephen La Rocque lui répond.
	Excluded values		2006-06-05
		Mike pose la question : i need to find the excluded values of: 2n2-9n+4 / 2n2-5n-12 Penny Nom lui répond.
	Absolute Value vs. Standard Deviation ?		2006-04-24
		Sonia pose la question : Why we don't just take the average of the absolute value of difference scores (use the mean deviation) to describe variability instead of calculating the standard deviation? Claude Tardif lui répond.
	A table of values		2006-03-28
		Cindy pose la question : Create a table of values for each of the following functions: y=5x, y=52, and y=5x. I dont know to do this. Stephen La Rocque lui répond.
	The Mean Value Theorem		2005-12-22
		Candace pose la question : Verify that the function satisfies the hypotheses of the Mean Value Theorem on the given interval. Find all numbers "c" that satisfy the Mean Value Theorem. 11. f(x)=3x2 + 2x +5 [-1, 1] Penny Nom lui répond.
	Whats the value of the digit 7 in 756,809?		2005-09-14
		Anastasia pose la question : Whats the value of the digit 7 in 756,809? Penny Nom lui répond.
	|ax+b| = cx + d		2005-03-22
		Angel pose la question : |ax+b| = cx + d how to show sometimes the above has 2 roots, sometimes 1 root and sometimes no roots. Hopelessly lost on how to start... Penny Nom lui répond.
	Four and five digit numbers		2004-09-21
		Josy pose la question : The question I have now in front of me is....Is a 4-digit number always less than a 5-digit number? Hi Josy, The digits in order are 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9. Thus the largest four digit number is 9999. The smallet 5 digit number is 10000. Penny Go to Math Central Penny Nom lui répond.
	The p-value		2004-07-25
		Kathy pose la question : Ms. Lisa Monnin is the budget director for the New Process Company. She would like to compare the daily travel expenses for the sales staff and the audit staff. She collected the following sample information. At the .10 significance level, can she conclude that the mean daily expenses are greater for the sales staff than the audit staff? What is the p-value? Having problems finding the p-value & unsure of the formula. Kathy Penny Nom lui répond.
	An ineqlality with absolute values		2004-07-05
		Uneeza pose la question : abs(x2 - 4x) > 3 Claude Tardif lui répond.
	Place Value		2004-04-25
		Santosh pose la question : Q. Write the Place value of the digits in the following numerals. 1. 5 in 54 2. 3 in 63 Penny Nom lui répond.
	|x^2 - 12x| = 8		2004-01-24
		Sherre pose la question : |x2 - 12x| = 8 Penny Nom lui répond.
	Absolute value		2003-09-23
		Crystal pose la question : I am trying very hard to understand Absolute Value, and I cannot seem to grasp the idea. I do not know why we use it, what the point of it is. I do not know how to use it. I know that it is always positive or zero, and I assume it relates to distance, but how can you use it in equations. Please explain it to me as simply as possible, thank you. Walter Whiteley 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.
	|x+3| = -15x		2003-07-19
		Nathan pose la question : Without the use of trial and error, is there a way of solving for x where |x + 3| = -15x? I know that x = -0.1875, but how do I find whether x + 3 is positive or not if I did not have this information (In other words, how would I solve whether the x-value was -3 or less, or if it was more than -3)? Claude Tardif and Penny Nom lui répond.
	E(X + Y) and V(X + Y)		2003-07-10
		Reuben pose la question : I'm a teacher trying to find a way to make some stats work from first principles. The topic is expectation algebra and it is for the top age level in high school. By using a set of data I can show how the mean is the same as the expected value ie 2,2,3,4,4 is 15 / 5 = 3 also, 2x0.4+3x0.2+4x0.4=3. I can also show this to work for the variance in the same style but using Sum(x-mean)2/n and the Var(X) version of squaring x then multiplying by the probability ( all this for random independant samples). Now comes the tricky bit.....when I try to show E(X+Y) = E(X) + E(Y) from setting up two data sets I get it to work only if I add each item from X to each item from Y. However, I can't get it to work for V(X+Y)=V(X) + V(Y) from two sets of data. There must be something missing in my knowledge of how the sets are required to add together or my knowledge of expectation algebra. I am familiar with proofs but still want to show my students that the basic formulae work from groups of data whether done the long way or by use of formulae. Can you help please? Penny Nom lui répond.
	Excluded values		2003-02-22
		Josh pose la question : Why do you think it is necessary to include the "excluded values" when you write your answers to rational expressions? 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.
	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.
	Overlapping circles		2002-05-29
		Naman pose la question : There are two circles, big circle with radius R and small one with radius r. They intersect and overlap in such a way that the common area formed is 1/2 pi r 2 (half the area of the small circle) If r=1, find the Radius of the big circle (R)? Harley Weston lui répond.
	| n + 4 | + | 3 - 2n | = 16		2002-05-24
		Randall pose la question : I don't seem to be able to solve this: | n + 4 | + | 3 - 2n | = 16 Penny Nom lui répond.
	Linear regression		2002-01-16
		Murray pose la question : If you have a set of coordinates (x[1],y[1]),(x[2],y[2]),...,(x[n],y[n]),find the value of m and b for which SIGMA[from 1 to m=n]AbsoluteValue(y[m]-m*x[m]-b) is at its absolute minimum. Harley Weston lui répond.
	What is a group of three numbers called in a large number?		2002-01-15
		Laurie pose la question : What is a group of three numbers called in a large number? My son has this question on his 4th grade worksheet. I've taught middle school math for 7 years and nver heard of it. Paul Betts lui répond.
	Absolute Value		2001-10-14
		Susan pose la question : I am a homebound teacher, and my nineth grade algebra I student is having trouble understanding absolute value. Please send me an idea about how to best help her. She may be out of the classroom the entire year. Chris Fisher 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.
	The Mean Value Theorem		2001-07-23
		Corrie pose la question : I need to find if the mean value theorem exists. and if so, find all values c guaranteed by the theorem. f(x) = |x2-25| on the interval [-10,0] Harley Weston lui répond.
	Expected value		2001-04-24
		Cindy pose la question : A game consists of rolling a single fair die. If a number great than 4 is rolled you win the number of dollars showing on the die. If any other number is rolled, you receive $1.00. What is the expected value of this game? Andrei Volodin lui répond.
	The domain of the derivative		2001-02-22
		Wayne pose la question : I know that the domain of f'(x) is a subset of the domain of f(x). Is it necessarily true that the subset will have at most one less element than the domain of the original function? Harley Wesston lui répond.
	Place value chart		2001-01-11
		Charles pose la question : Can you send me a pictorial example of a place value chart? Harley Weston lui répond.
	How many tens are in 400?		2000-11-07
		A student pose la question : How many tens are in 400? Penny Nom lui répond.
	Expected number		2000-11-02
		James pose la question : 1)There are 40,25,50 students in the traditional,reformed,and reformed traditional Calculas sections taught by three teachers. On one fine day the three sections congregate together to watch the NOVA video tape on Fermat's Last Theorem. a) A student is randomly selected from he crowed of students.What is the expected number of students in the same section of this student? ****this question which i did not have any idea to do as follow for the part b b) If one of the three teachers is selected at random, what is the expected number of students taught by is teacher? Harley Weston lui répond.
	The smaller of a and b		2000-09-14
		Jenna pose la question : For any two real numbers, a and b, give a mathematical expression in terms of a and b that will yield the smaller of the two numbers. Your expression should work regardless of whether a>b, a Penny Nom lui répond.
	7 - - - - 77		2000-09-13
		Peter pose la question : Does anyone know how to solve the following: 7 _ _ _ _ 77 ? I have to find the missing values. Chris Fisher and Walter Whiteley lui répond.
	Two geometry problems		2000-09-09
		Becky pose la question : What are all the real values of x that are solutions for the inequality [x-2] < 6? ( it's less than or equal to) What is the distance between the points with (x,y) coordinates (3,-2) and (-3,-1)? Peny Nom lui répond.
	Solving an equation		2000-08-26
		Patrick pose la question : My question is how would u do a problem like this.......... [2x-37] =15?....u have to solve it for absolute value equations....???? Harley Weston lui répond.
	PreCalculus		2000-08-09
		Angela pose la question : Use absolute values to define the interval or pair of intervals on the real line. <--|--- |--- ]--- |--- |--- |--- [---| ---|--> 18 19 20 21 22 23 24 25 26 A car is moving at the rate of 50 miles per hour, and the diameter of its wheels is 2.5 feet. a) Find the number of revolutions per minute that the wheels are rotating. b) Find the angular speed of the wheels in radians per minute. Harley Weston lui répond.
	An expected value		2000-04-24
		Carl Pride pose la question : Suppose that in a statistics class of size 23, each student has a probability of passing of 73 percent. sample: What is the expected number of students who will pass?? Harley Weston lui répond.
	Taxicab geometry		2000-01-16
		Jack pose la question : Im doing an investigation entitled 'taxicab geometry', ive attempted it and have done most of the practical part of it. But i cant seem to see the equation behind it all. please guide me in the right direction. They provide a regular grid with regular horizontal and vertical lines. The lines are roads and the actual squares are blocks of hoouses/ buildings. In taxicab geometry the distance between place A & B is worked out by adding together the horizontal and vertical distances. each square is counted as i unit. Part 1 (I've done this) A taxix cab firm is based at A. the posistion B is 7 units away from A. investigate all the posistions of B at 7 units. investigate for different distances. . . . Penny Nom lui répond.
	Absolute value		1999-12-29
		Alex Waller pose la question : What are some practical applications for absolute value? Harley Weston lui répond.
	Advanced Calculus		1999-12-07
		Kay pose la question : Hi, my name is Kay. Please help---these problems are driving me crazzzzy!!!! Your help would be greatly appreciated! Let a,b be contained in R, a . . . Claude Tardif 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.
	Instant Winner		1999-04-07
		FSSTAN pose la question : The probabilities of being an "instant winner" of $25 or $50 in a lottery are 1/600 and 1/1200, respectively. The mathematical expectation of being an "instant winner" of $25 or $50 is? Jack LeSage and Penny Nom lui répond.
	Finding Excluded Values		1999-04-01
		Lorraine Le Cam pose la question : The question asks me to find the value of the variable that must be excluded in each rational expressionion. The operation is: a ______ a - 2 How do I work this out? Harley Weston lui répond.
	Grade 4 curriculum		1999-02-09
		John pose la question : My daughter is in grade 4 and her math teacher has asked her to write out the number 1 to 10,000. She is currently at 4567 and is sick of it. When I complained that this was not a usefull exercise she said that the Ministry of Education curriculum requires this and gave a photocopy of the page. It states: "read and write whole number to 10,000 in standard, expanded, and written forms (eg., 9367=9000+300+60+7 = nine thousand three hundred sixty-seven). Has the teacher interpreted this the wrong way? Thanks John PS. Do you have a web address for Ontario Math and Science Teachers organization? Jack LeSage lui répond.
	Absolute value of i		1999-01-06
		Wayne Bagley pose la question : I would like to know what is the absolute value of i. I need an answer suitable for the secondary level. Harley Weston 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.
	Two Questions		1997-10-28
		Melissa Kelley pose la question : I would appreciate any help you could give me. Why isn't 1 a prime number? How can the absolute value of a number be negative? Penny Nom lui répond.
	A Limit Problem		1997-09-16
		Robert Reny pose la question : what is the limit, as x approaches 0, of 3x/2x-[x]? [] means absolute value. Harley Weston lui répond.
	Billions and more!		1997-09-15
		Mahabir B. Gupta pose la question : I would like to know how you americans write the number 1 billion. Do you say "One thousand million"..can you answer by giving me examples? 1,000,000----> 1 million 1,000,000,000---->1 billion Why is it that in spanish it is different? Penny Nom lui répond.
	Thousands, millions, billions and trillions		1996-08-22
		Blaine pose la question : What are the names of the periods in groups of numbers like 123,456,789. I need to know the names of them for school. I already know the first ones: units thousands millions billions trillions. Penny Nom and Diane Hanson lui répond.

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