Provide an appropriate response.Find cos B to the nearest ten-thousandth if a = 14.5, b = 7.8, and c = 16.5. 

A. 1.1379
B. 0.8788
C. 1.8590
D. 0.4727

Answer: B

Mathematics

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Perform the requested operation on the given function.f(x) = , g(x) = 5x - 2Find (fg)(x).

A. 15x - 2
B. 5x - 2 
C.    + 10x
D. 15x2 - 6

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Find the first term and the common ratio of the geometric sequence.2, -8, 32, -128, 512, . . .

A. a1 = 2, r = -4
B. a1 = -4, r = 4
C. a1 = -4, r = 8
D. a1 = 2, r = - 

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Identify the numerical value and direction.-18

A. The value is -18 and the direction is to the right B. The value is -18 and the direction is to the left. C. The value is 18 and the direction is to the left. D. The value is 18 and the direction is to the right.

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Factor the trinomial completely. 

A.
B.
C.
D.
E. not factorable

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