Use an identity to write the expression as a single trigonometric function or as a single number.4 sin 2x cos 2x
A. cos 4x
B. 
sin 16x
C. 2 sin 4x
D. cos 8x
Answer: C
Mathematics
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Convert the units.7 yd = 
in.
A. 21 B. 0.19 C. 84 D. 252
Mathematics
Determine the linear inequality associated with the given solution.
A. y ? x + 5 B. y ? 5x C. y ? 5x D. y ? x - 5
Mathematics
Solve the inequality.x2 - 5x - 6 ? 0
A. [6, ?) B. (-?, -1] C. [-1, 6] D. (-?, -1] or [6, ?)
Mathematics
Perform the indicated operation for the given f(x) and g(x).f(x) = x - 5, g(x) = -4x2 + 14x + 3
Find (fg)(3).
A. -264 B. -108 C. -18 D. 72
Mathematics