Solve the problem.If a roof's slope is 0.5, how high will the roof rise over a 9-foot run?

A.  feet
B. 4 feet
C. 18 feet
D. 9 feet


Answer: B

Mathematics

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Rewrite the expression as an equivalent expression that does not contain powers of trigonometric functions greater than 1.8 cos2 x

A. 16 cos x B. 1 + cos 2x C. 4 - 4 cos 2x D. 4 + 4 cos 2x

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Multiply.

A. 89,800 B. 987,800 C. 98,780 D. 9878

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Solve the problem.Find the producer's surplus if the supply function is given by  Assume that supply and demand are in equilibrium at 

A. 10,836 B. 10,638 C. 10,386 D. 10,368

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Express the sum without using summation notation.

A. 8 + 40 B. 1 + 2 + 3 + 4 + 5 C. 8 + 16 + 24 + 32 + 40 D. 4 + 4 + 4 + 4 + 4

Mathematics