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The game of 24 |
2006-11-28 |
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John pose la question :
Math 24 with 9, 8, 4, 2?
Stephen La Rocque and Penny Nom lui répond. |
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Creating a triangle in a circle |
2006-11-28 |
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Dirk pose la question :
My daughter has a school project where she must draw a circle and then draw an equilateral triangle inside the circle. She said you have to identify six points on the circle to correctly draw the triangle. How do you accomplish this?
Penny Nom lui répond. |
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What proportion of cups of coffee have at least one defect |
2006-11-28 |
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Ayman pose la question :
coffee machine may be defective since it dispenses the wrong amount of coffee (C) & or the wrong amount of suger ( S ) the probability of these defects are P(C) = 0.05, P(S) = 0.04 & P( C&S ) = 0.01 find
1- what proportion of cups of coffee have at least one defect
2- what proportion of cups of coffee have no defect
Penny Nom lui répond. |
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Quel est ce nombre? |
2006-11-28 |
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Dourlent pose la question :
je multiplie un nombre par 10 et il augmente de135. Quel est ce nombre?
Claude Tardif lui répond. |
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The sum of prime numbers |
2006-11-28 |
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Rambabu pose la question :
I would like to know the sum of prime numbers below some X say 10000. Provide me with easy way to get this done
Penny Nom lui répond. |
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An arithmetic series |
2006-11-28 |
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Jillian pose la question :
Find the sum of 21 terms of an arithmetic series that has an eleventh term equal to 30.
Penny Nom lui répond. |
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solve; |
2006-11-28 |
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Monique pose la question :
solve; f(f(x)) = 2x + 4 ; if f(x) = 1
Penny Nom lui répond. |
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A geometric sequence |
2006-11-28 |
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Jillian pose la question :
Find x so that 2x, x + 5, x - 7 are consecutive terms of a geometric sequence.
Stephen La Rocque lui répond. |
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2x > -6 and x - 4 < 3 |
2006-11-27 |
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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. |
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A spherical bowl |
2006-11-26 |
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Lynne pose la question :
A spherical bowl of internal radius 15cm is partly filled with liquid. If the radius of the horizontal liquid surface is 12cm, calculate (taking the value of pi to be 3.142), the height of this liquid surface above the center of the bowl.
Penny Nom lui répond. |
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A problem involving logs |
2006-11-26 |
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Beth pose la question :
any help would be appreciated on how to solve without using the change of base formula for logarithms in the solution and check of the solution!!!
log256 (x) + log16 (x) + log4 (x) + log 2 (x) = 7/4
Stephen La Rocque and Penny Nom lui répond. |
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Arithmetic with base -2 |
2006-11-26 |
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Yuva pose la question :
can we do arithmetic ,base -2. If yes, how and if not, why.
Stephen La Rocque lui répond. |
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The area of a semicircle |
2006-11-25 |
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Melinda pose la question :
If the radius of a semi-circle is 9ft what is the area?
Karen McIver and Penny Nom lui répond. |
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How many licence plates are possible? |
2006-11-24 |
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Naomi pose la question :
The state of New York has licence plates with five numbers followed by either a letter A or a letter B (eg. 36457A ,59972B ). How many licence plates are possible?
Penny Nom lui répond. |
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(x - 5)/3 - 3/2 = (4x + 7)/6 |
2006-11-23 |
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Terri pose la question :
I have never had algebra before and I am finding it difficult.Can you please help me work this problem out?
(x - 5)/3 - 3/2 = (4x + 7)/6
Penny Nom lui répond. |
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