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A cubic inch |
2011-03-13 |
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From wyatt:
what is a cubic inch?
Answered by Penny Nom. |
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Four coins |
2011-03-11 |
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From Nestor:
exact amount: philip has a quarter, a dime, a nickel, and a penny. for how many different prices could he give the exact amount?
Answered by Penny Nom. |
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The mass of a metal box |
2011-03-11 |
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From Pamela:
A metal block has the dimensions of 3.16 inches wide, 2.15 inches
high, 4.98 inches long. What is the volume of the block in cm^3?
What is the block's mass if the metal has a density of 5.89g/cm^3.
Answered by Robert Dawson. |
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Three consecutive odd numbers |
2011-03-11 |
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From George:
Write an equation three consecutive odd numbers whose sum is 75
Answered by Penny Nom. |
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Regular and irregular polygons |
2011-03-10 |
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From thaera:
the difference between regular shape and irregular shapes.
Answered by Penny Nom. |
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Working backwards |
2011-03-10 |
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From Kevin:
Duwayne wrote a two -digit number.He multiplied it by 3,added 18, and divided by 8.His final answer was 9.What number did Duwayne write
Answered by Penny Nom. |
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The interior angles of a pentagon |
2011-03-10 |
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From Daima:
I need help!
The interior angle of a pentagon i s5 ( I hope ) or 540 degrees.
The interior angle of a pentagon is what? Explain to me please.
Daima
Answered by Penny Nom. |
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Fencing a park |
2011-03-07 |
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From taniel:
Find the number of feet of fence needed to fence a park that is 1 3/8 mi long and 5/8 wide.
Answered by Penny Nom. |
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Average speed |
2011-03-07 |
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From West:
Calculate the distance (in km) that Larry runs if he maintains an average speed of 8km/hr for 45 minutes
Answered by Penny Nom. |
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40% margin |
2011-03-07 |
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From Blake:
An item costs a store owner $1.79 and he wants to make a 40% margin on the item. What should the item be sold at in order to get the 40% margin?
Answered by Penny Nom. |
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6 faces and 8 corners |
2011-03-04 |
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From noemi:
jeff made a figure with 6 faces the figure has 8 corners all of the faces are the same size and shape what figure did jeff make
Answered by Penny Nom. |
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Vertices and sides of a polygon |
2011-03-04 |
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From RINA:
My questions is : would a vertices and sides of a polygon be the same number. For example, a octagon it has 8 points and 8 sides. Am i correct?
Answered by Robert Dawson. |
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Factor 10x^2+17x-6 |
2011-03-03 |
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From Jeff:
Factor 10x^2+17x-6 with steps and explanation.
Answered by Penny Nom. |
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ln(12 x) = 6 |
2011-03-03 |
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From Carolyn:
solve the equation
ln12x = 6
Thank you
Carolyn
Answered by Penny Nom. |
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A family of circles |
2011-03-01 |
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From steffi:
Find the equation of the family of the circle passing through the the point of intersection of x^2+ y^2 -4x-28=0 and x^2 +y^2 -4x-20+52=0; the member tangent to x=7.
Answered by Penny Nom. |
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