Evaluate the integral.
A. sin-1 
- 2
+ C
B. 
tan-1 
+ 
+ C
C. 5 tan-1 
- 
+ C
D. 5 sin-1 
- 
+ C
Answer: D
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and the hemisphere 
A. 457?
B. 
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C. 
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D. 
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A delivery truck must deliver packages to 6 different store locations (A, B, C, D, E, and F). The trip must start and end at A. The graph below shows the distances (in miles) between locations. We want to minimize the total distance traveled.
How many different Hamilton circuits would we have to check if we use the brute-force algorithm? (Do not count the same circuit traveled backward.)
A. 6 B. 60 C. 15 D. 30 E. none of these
Find the area of the region under the curve 
over the indicated interval.
?
?
A. 2 sq units B. 3 sq units C. 4 sq units D. 8 sq units E. 1 sq units
Perform the indicated operation. Assume that all variables represent nonnegative real numbers.8
+ 2x
A. 68
B. 68x
C. 12x
D. (8
+ 12
)x