Simplify the expression. Use positive exponents. Assume variables represent nonzero real numbers.

A. p7
B.
C. p-3
D. p-7

Answer: A

Mathematics

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Use a system of linear equations in two variables to solve the problem.A flat rectangular piece of aluminum has a perimeter of 62 inches. The length is 9 inches longer than the width. Find the width.

A. 11 in. B. 20 in. C. 31 in. D. 29 in.

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Find the surface area of the solid.Find the surface area of a right square pyramid with a side 10 inches and a slant height of 10 inches.

A. 300 in.2 B. 200 in.2 C. 125 in.2 D. 225 in.2

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Write the rational expression in lowest terms.

A.
B.
C.
D.

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0 ? t <  and cos t is given. Use the Pythagorean identity sin2 t + cos2 t = 1 to find sin t.cos t = 

A.
B.
C.
D.

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