Compute.

A. 5 lb 11 oz
B. 7 lb 11 oz
C. 5 lb 7 oz
D. 7 lb 7 oz

Answer: C

Mathematics

Use a calculator to evaluate the expression. Round the answer to three decimal places.(3.15)-3

A. 31.256 B. 0.032 C. -0.032 D. -31.256

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Mathematics

Simplify. Express your answer with positive exponents. Assume that all variables are nonzero.(5x4y7)-2

A. 25x⁸y¹⁴
B.
C.
D.

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Mathematics

Determine the period of the function and sketch its graph.y = cos

A. period: 2?

B. period: 4?

C. period: 4

D. period: 4?

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Mathematics

Write the quotient in standard form.

A. -1 - 2i B. 1 + 2i C. -1 + 2i D. -1 + 5i

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Mathematics