Find the derivative of y with respect to the appropriate variable.y = 9 tanh-1 (cos x)

A.
B. ln  sin x
C.
D.

Answer: C

Mathematics

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Factor the trinomial.27 + 6x - x2

A. (9 - x)(3 - x) B. (9 + x)(3 - x) C. (9 - x)(3 + x) D. (x + 9)(x - 3)

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Find the graph of the equation. ? ?

A. ?


B. ?


C. ?


D. ?


E. ?


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Find the average rate of change for the function over the given interval.y = x2 between x = -5 and x = 10

A. -5 B. 1 C. 15 D. 5

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Evaluate. If necessary, find common denominators and simplify completely.13 - 7

A. 5
B. 4
C. 5
D. 6

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