Simplify. Assume that no radicands were formed by raising negative quantities to even powers.

A. 7m4
B. 7m5
C. 7m6
D. 14m2

Answer: B

Mathematics

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Multiply the polynomials.(x + y + 9)2

A. x2 + y2 + 81 B. x2 + y2 + 18x + 18y + 81 C. x2 + 2xy + y2 + 18x + 18y + 81 D. x2 + 2xy + y2 + 81

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Solve the problem.Find the length of the curve y = ln(sin x), ?/6 ? x ? ?/2

A. ln( + 2)
B. ln( + 1)
C. ln()
D. 1 - ln( + 2)

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Solve the problem.If u = , v = , and w = , evaluate u ? w + v ? w.

A. -34 B. -43 C. -32 D. -39

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Find the domain of the rational function.f(x) = 

A. {x|x ? -2} B. {x|x is any real number} C. {x|x ? -2, 2} D. {x|x ? -7}

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Mathematics