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Volume in cubic feet |
2007-12-20 |
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From kim:
if i have the inches and need to convert them to cubic feet, how do i do that? i thought it was height X width X length.
Answered by Penny Nom. |
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F( x - 2) = (x + 3)/ (x - 4) |
2007-12-20 |
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From Sean:
If F( x - 2) = (x + 3)/ (x - 4) , then F(5) = 10/3
How do you solve this problem and what section of calculus can I learn the technique to solve this type of problem?
Answered by Stephen La Rocque. |
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Find the lengths, and explain in a 'let statement' |
2007-12-20 |
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From Cordilla:
the length of the sides of a triangle are 3 consecutive whole numbers. The perimeter of the triangle is 102 meters. Find the lengths, and explain in a' let statement'.
Answered by Stephen La Rocque and Harley Weston. |
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Smallest cone containing a 4cm radius inscribed sphere |
2007-12-19 |
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From Eva:
A sphere with a radius of 4cm is inscribed into a cone. Find the minimum volume of the cone.
Answered by Stephen La Rocque. |
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Simplifying square roots |
2007-12-19 |
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From Ciara:
How would you calculate 2 to the square root of 8 plus 4 to the square root of 2 minus 5 to the square root of 2?
Answered by Stephen La Rocque. |
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Percentage change |
2007-12-19 |
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From Aaron:
I understand how figure percent of change and I can figure it on a calculator but if I have to do it without I'm not sure how to divide when the original amount is larger than the amount of change. For example, the decreased amount is 5.00 on 29.99, what would the percent be. Like I said I can do it on a calculator but need to know how to figure it without one.
Answered by Penny Nom. |
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Partitioning a clock face |
2007-12-19 |
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From Kim:
Using a clock with a regular circular faced dial, draw two straight lines such that the sum
of the numbers in each of the three areas is equal.
Answered by The team at Math Central. |
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Linearize a graph |
2007-12-19 |
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From Justene:
My daughter has a physics lab where she must linearize a graph of acc vs. mass. I have no idea how to help her.
Answered by Stephen La Rocque. |
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Which expression gives the greatest value? |
2007-12-18 |
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From Jordan:
'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.
Answered by Stephen La Rocque. |
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Circumcentre of a triangle |
2007-12-18 |
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From Kathryn:
Find the coordinates of the circumcentre of the triangle whose vertices are:
(5, -3), (3, -1), (-1, 5)
Answered by Stephen La Rocque. |
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Profit percentage (markup and margin) |
2007-12-18 |
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From Laura:
If my husband says he sold $11,000 worth of tools and made $1400 on the deal, what is the percent of profit?
Answered by Stephen La Rocque. |
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For how many positive integers n is n^2 + 96 is a perfect square? |
2007-12-18 |
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From Rajesh:
For how many positive integers n is n^2 + 96 is a perfect square ?
Answered by Penny Nom. |
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Three workers working together |
2007-12-18 |
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From Rajesh:
Worker A can do a piece of work in 15 days, worker B in 12 days, and worker C in 10 days. Worker A works 2 days, worker B 3 days, and worker C 3 days. In what time can worker A and worker B finish the job by working together?
Answered by Penny Nom. |
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What size room would I need for 220 cubic feet? |
2007-12-18 |
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From Andy:
What size room would I need for 220 cubic feet? What is the calculation I would use to find the answer to this problem?
Answered by Penny Nom. |
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800 poules pondent 800 oeufs en 8 jours |
2007-12-17 |
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From LINDA:
800 POULES EN 8 JOURS PONDENT 800 OEUFS, COMBIEN 400 POULES
VONT-ELLES PONDENT D'OEUFS EN 4 JOURS?
Answered by Claude Tardif. |
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