Use the rules for exponents to rewrite the expression and then evaluate the new expression. (-2)2(-2)3
A. -64
B. -32
C. 
D. 
Answer: B
Mathematics
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Use a calculator to evaluate the expression. Round your answer to the nearest thousandth.
A. 9.799 B. 9.762 C. 8.775 D. 6.304
Mathematics
Perform the operation, if possible.Let A = 
and B = 
. Find A + B.
A. 
B.
C. 
D. 
Mathematics
Solve the problem.Find an equation of the line containing the centers of the two circles x2 + y2 - 2x + 10y + 25 = 0
and x2 + y2 + 6x - 4y + 9 = 0
A. 7x - 4y - 13 = 0 B. -7x - 4y - 13 = 0 C. -3x + 2y - 13 = 0 D. -7x + 4y - 13 = 0
Mathematics
Graph the function over a one-period interval.y = - 
cos
+ 3
A. 
B. 
C. 
D. 
Mathematics