Find .v = 6i + 5j - 6k

A.
B. 5
C.
D.

Answer: D

Mathematics

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Given y = f(u) and u = g(x), find dy/dx = f'(g(x))g'(x).y = tan u, u = -10x + 18

A. - sec2(-10x + 18) B. -10 sec2(-10x + 18) C. -10 sec (-10x + 18) tan (-10x + 18) D. sec2(-10x + 18)

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Mathematics

Simplify. Assume all variables represent nonnegative values.

A. x63
B.
C. x7
D. 3z

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Mathematics

Find the unknown diameter or radius as indicated.

A. 16 m B. 8? m C. 4 m D. 4? m

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Mathematics

Solve.Tamiko, who doesn't smoke, pays an annual premium of $517 for her life insurance policy. Her twin sister Yoko, who is a smoker, pays an annual premium of $1003 for the same policy. What is the percent increase for Yoko? Round to the nearest percentage point.

A. 48.5% B. 94.0% C. 9.4% D. 91.2%

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Mathematics