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The weight of a bar of steel |
2008-04-22 |
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Himmler pose la question :
if a steel weighs 0.30 pounds per cubic inch, then the weight of a 2 inch square steel bar 90 inches long is------------pounds.
Penny Nom lui répond. |
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How is the square root of 3/4 is greater than 3/4? |
2008-04-22 |
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Serena pose la question :
How is the square root of 3/4 is greater than 3/4?
Penny Nom lui répond. |
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Why does -2^2 = -4 when -2 * -2 = 4? |
2008-04-22 |
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blaine pose la question :
Why does -2^2 = -4 when -2 * -2 = 4?
Penny Nom lui répond. |
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What is the integral of 13sin^3(x)*cos^7(x)dx? |
2008-04-22 |
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Cathrine pose la question :
I am having trouble integrating this problem. It says to evaluate the integral but I don't know what to do or how to do it.
It is the integral of
13sin^3(x)*cos^7(x)d
Harley Weston lui répond. |
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Find the quadratic equation with roots at (3-i) and its complex conjugate |
2008-04-22 |
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Tiffany pose la question :
Find the quadratic equation with roots at (3-i) and its complex conjugate.
Penny Nom lui répond. |
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The isoperimetric inequality |
2008-04-21 |
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Dutch pose la question :
I'm searching for the proof that the sphere has the smallest volume of any figure and maximizes the volume of any figure.
Chris Fisher lui répond. |
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f(x)=sin^3(3x^2) find f ' (x) |
2008-04-21 |
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Michael pose la question :
f(x)=sin^3(3x^2) find f ' (x)
Harley Weston lui répond. |
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The perimeter of a half acre square |
2008-04-20 |
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s pose la question :
Measured in feet. What would be the perimeter of a square area of land measuring
1/2 acre?
Penny Nom lui répond. |
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Why can't a square be twice another square? |
2008-04-20 |
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kim pose la question :
why can't a square number double another one
Penny Nom lui répond. |
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The sum of the ages of Petra and her mother is 45 |
2008-04-20 |
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Wendy pose la question :
The sum of the ages of Petra and her mother is 45. Her mother is 12 years more than twice as old as Petra. How old are Petra and her mother?
Leeanne Boehm lui répond. |
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Ratios and fractions |
2008-04-20 |
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Alissa pose la question :
What is the formula for writing the ration of two numbers as a fraction?
Leeanne Boehm lui répond. |
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x/3 -5 = 3(x-2) |
2008-04-20 |
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Mrs pose la question :
I am having trouble helping my son solve the following equation:
x/3 -5 = 3(x-2)
Penny Nom lui répond. |
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What is the % of the resulting solution? |
2008-04-20 |
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RON pose la question :
USING 4 PARTS OF 80% SOLN AND 1 PART OF 20% SOLN, WHAT
IS THE % OF THE RESULTING SOLN? FOR 120ML USE 96 ML OF
THE 80% SOLN AND 24 ML OF THE 20% SOLN BUT WHAT IS
THE % OF THE RESULTING SOLN? PLEASE SEND HOW TO
CALCULATE THE %. IS THE ANSWER 68% ??
Penny Nom lui répond. |
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A water alcohol mixture |
2008-04-20 |
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Mary pose la question :
How many oz. of solution that is 90% alcohol ( and 10% water) is needed to be mixed with 5 ounces of a solution that is 50% alcohol in order to obtain a solution that is 80% alcohol?
Penny Nom lui répond. |
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The dimensions of a rectangle |
2008-04-20 |
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Brandy pose la question :
Find the dimensions of a rectangle with a primeter of 54 cm if the length is 5 less than three times the width.
Penny Nom lui répond. |
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