Simplify using the laws of exponents.(-9x2)(-9x3)
A. -18x5
B. 81x5
C. -81x6
D. -18x6
Answer: B
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Find the length of the curve.The spiral r = 6?, 0 ? ? ? ?
A. 16((?2 + 1)3/2 - 4)
B. 6
C. 3(?
+ ln (? + 
))
D. 36
Solve the problem.The following graph
A. has a Hamilton path that starts at G and ends at E. B. has a Hamilton path that starts at D and ends at G. C. has no Hamilton path. D. has a Hamilton path that starts at A and ends at B. E. none of these
Solve the problem. Round as appropriate.The time T necessary to make an enlargement of a photo negative varies directly as the area A of the enlargement. If 135 seconds are required to make a 3-by-5 enlargement, find the time required for a 
enlargement.
A. 308 sec B. 252 sec C. 224 sec D. 280 sec
Find the domain of the function and identify any vertical and horizontal asymptotes.
?
?
A. Domain: all real numbers xVertical asymptote: x = 0Horizontal asymptote: y = 0 B. Domain: all real numbers x except x = 9Vertical asymptote: x = 0Horizontal asymptote: y = 0 C. Domain: all real numbers x except x = 3Vertical asymptote: x = 0Horizontal asymptote: y = 9 D. Domain: all real numbers xVertical asymptote: x = 0Horizontal asymptote: y = 9 E. Domain: all real numbers x except x = 3Vertical asymptote: x = 3Horizontal asymptote: y = 0