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Proportionality 2009-11-03
Nazrul pose la question :
If x is proportional to y , how can I prove that (x^2-y^2) is proportional to xy. Please explain the process.
Penny Nom lui répond.
The roots of a polynomial 2009-11-03
Jess pose la question :
Find the value of a positive integer k such that f(x)=x^2 - 2kx + 55 has roots at k +3 and k - 3.
Penny Nom lui répond.
A single die is rolled twice 2009-11-03
Michelle pose la question :
A single die is rolled twice. Find the probability of getting two numbers whose sum exceeds 5. I can't seem to come up with any of these answers, Help. A. 0.72 B. 0.89 C. 0.68 D. 0.58
Penny Nom lui répond.
A number puzzle 2009-11-03
Jacqui pose la question :
Write a number sentence. Use every digit once, 7, 4, 3, 6, 5,10. Insert math symbols +, - , *,/ and end up with the number 3. Use parentheses if necessary.

Jacqui

Claude Tardif and Penny Nom lui répond.
What's the next term? 2009-11-03
bharat pose la question :
if
1=5
2=25
3=325
4=4325
5=?

Robert Dawson and Penny Nom 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.
Guess and check 2009-11-01
Laura pose la question :
There is a game at the fair in which you toss balls into bowls to win fish. There are 52 bowls. The larger bows contain five fish, and the smaller ones contain three fish. If there are 202 fish total, how many bowls of each size are there?

Laura

Penny Nom lui répond.
A lottery question 2009-11-01
munirah pose la question :
assume the chances of winning the lottery are 1 in 1000.how many times would you have to play to attain 0.5 probability of winning at least once?
Robert Dawson and Claude Tardif lui répond.
At what rate are the people moving apart? 2009-11-01
saira pose la question :
A man starts walking north at 4 ft/s from a point P. 5 minutes later a woman starts walking south at 5 ft/s from a point 500 ft due east of P. At what rate are the people moving apart 15 minute after the woman starts walking ?
Harley Weston lui répond.
Consecutive positive integers 2009-11-01
Madi pose la question :
I'm doing my homework, and there are questions on Consecutive Positive Integers. I was just wondering, what is a consecutive integer? Or to be more specific, what is a consecutive POSITIVE integer?
Penny Nom lui répond.
Sarah's age 2009-10-31
Kenneth pose la question :
2/3 of Mary’s age equals Sarah’s age and 3/4 of Ruth’s age equals Sarah’s age. If the total ages equal 46, how old is each girl?
Claude Tardif lui répond.
A path around a pond 2009-10-31
adeniji pose la question :
find the area of a concrete path 2m wide surrounding a circular pond 12m in diameter
Penny Nom lui répond.
Where is the Father? 2009-10-30
Jeffrey pose la question :
A mother is 21 years older than her kid and within 6 years the child will be 5 times younger than the mother. Where is the Father? Jeffrey
Robert Dawson and Claude Tardif lui répond.
Rationals 2009-10-30
Jawsh pose la question :
I don't quite understand the whole idea of rationals. If you have 3Squareroot 49. Is that equal to 3Squareroot 7^2? Can you break it down with an example for me please.
Robert Dawson lui répond.
The intersection of two graphs 2009-10-30
asma pose la question :
by using the suitable scales,draw both the graph of x/2 + y/4 =3 and y=2 on the same graph paper.Find the points of intersection of the two graph.
Penny Nom lui répond.
 
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