For problems 4-6 use the power rule to rewrite the expression as a product and simplify as much as possible.
A. 
B. 
C. 7
D. 
E. None of these
Answer: A
Mathematics
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Perform the indicated operations.7.8 + (-3.6) + (-4.7)
A. 16.1 B. 6.7 C. -0.5 D. 8.9
Mathematics
Simplify.
A. 
B. 
C. 12
D. 1
Mathematics
Solve the problem.Let f(x) = cos x, g(x) = x - ?/2, and h(x) = 4x. Find f(h(g(x))).
A. 4 cos(x - ?/2) B. cos(4x - ?/2) C. cos(4[x - ?/2]) D. 4 cos(4[x - ?/2])
Mathematics
Perform the indicated operation and write the answer in the form 
where a and b are real numbers.(8 + 4i)(2 + 9i)
A. -20 - 80i B. 52 - 64i C. 36i2 + 80i + 16 D. -20 + 80i
Mathematics