Perform the indicated operation.(8a8)(7a4)
A. 1532
B. 56a12
C. 56a32
D. 1512
Answer: B
Mathematics
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Find the derivative.
A. 
x7 sin (x6)
B. 6x5 sin (x6)
C. -cos (x6) - 1
D. sin (x6)
Mathematics
Find the center and radius of the circle.(x + 8)2 + (y + 5)2 = 121
A. Center: (-8, -5); radius: 11 B. Center: (-5, -8); radius: 121 C. Center: (8, 5); radius: 11 D. Center: (5, 8); radius: 121
Mathematics
Multiply.-9(-9)
A. 90 B. 81 C. -90 D. -81
Mathematics
Find the length of the third side of the right triangle. Assume that c represents the length of the hypotenuse. Give an exact answer and, if appropriate, an approximation to three decimal places.a = 1, b = 7
A. c = 8
B. c = 
; c ? 7.071
C. c = 
; c ? 2.828
D. c = 
; c ? 6.928
Mathematics