Find the value of a so that the trigonometric function passes through the given point.y = a cos x(?, 5)
A. ?
B. 5
C. 1
D. -5
Answer: D
Mathematics
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Solve the problem.$4000 is invested at 9% compounded quarterly. In how many years will the account have grown to $14,500? Round your answer to the nearest tenth of a year.
A. 12.8 years B. 1.2 years C. 14.5 years D. 14.9 years
Mathematics
Solve the problem.Find the work done by a force of 10i (newtons) in moving an object along a line from the origin to the point 
(distance in meters).
A. 50.00 joules B. 64.03 joules C. 44.61 joules D. 12.81 joules
Mathematics
Multiply.10 × 36.901
A. 3690.1 B. 389.01 C. 369.01 D. 3640.1
Mathematics
For the pair of functions, find the indicated sum, difference, product, or quotient.f(x) = 8 - 9x, g(x) = -5x + 9Find (f + g)(x).
A. -14x + 17 B. -4x + 17 C. 3x D. -5x + 8
Mathematics