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Choose the equation that models the following problem.
When the side of a square is doubled, its area is increased to 28 cm2. **Weegy:** The sides of the square are both 8cm(its a square, and 8 squared is 64)
So the diameter of the circle is 8cm, and the radius is 4.
The area = pi(4^2) = 16pi. (More)

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Asked 9/24/2012 5:53:53 AM

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Use the discriminant to describe the roots of each equation. Then select the best description.
7x2 1 = 5x **Weegy:** 15x² + 7x - 2 =
(3x + 2)(5x - 1) (More)

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Asked 9/24/2012 6:10:50 AM

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Use the discriminant to describe the roots of each equation. Then select the best description.
7x2 1 = 5x
double root
real and rational root
real and irrational root
imaginary root **Weegy:** PleaseMathematically speaking, the answer would be x = 1/14 (5-i sqrt(3)). Source: Wolfram|Alpha (More)

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Asked 9/24/2012 6:12:55 AM

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Perspiration _____.
**Weegy:** Perspiration (sweating, transpiration, or diaphoresis) is the production of a fluid consisting primarily of water as well as various dissolved solids (chiefly chlorides), that is excreted by the sweat glands in the skin of mammals. (More)

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Updated 3/5/2014 12:10:31 PM

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After a caterpillar eats a leaf, it can convert the chemical energy into _____ energy to help it build a cocoon.
heat
nuclear
chemical
mechanical

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Updated 326 days ago|8/15/2014 6:31:03 AM

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After a caterpillar eats a leaf, it can convert the chemical energy into mechanical energy to help it build a cocoon.

Added 326 days ago|8/15/2014 6:31:01 AM

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