Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. 
B. -4
C. 2
D. - 
Answer: A
Mathematics
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Evaluate the integral by using multiple substitutions.
dx
A. 
sin6 (x3 - 7x)+ C
B. 2 sin6 (x3 - 7x) + C
C. 
cos6 (3x2) + C
D. 15 sin4 (x3 - 7x) + C
Mathematics
Solve the problem.Jackie's sisters weigh 117 lb, 142 lb, 121 lb, and 126 lb. The average female in her city weighs 136.2 lb. How much does Jackie weigh if she and her sisters have an average weight of 136.2 lb?
A. 126.5 lb B. 126 lb C. 175 lb D. 128.4 lb
Mathematics
Simplify the expression. Assume that all variables are positive.
A. 4z8 B. 16z5 C. 4z10 D. 4z5
Mathematics
Divide and, if possible, simplify.
÷ 
A. 
B. 
C. z - 2
D. 
Mathematics