A mail truck must deliver packages to 5 different homes (A, B, C, D, and E). 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.
The cheapest-link tour starting with vertex A is given by:
A. A, B, C, D, E, A.
B. A, C, D, B, E, A.
C. A, E, C, D, B, A.
D. A, D, B, E, C, A.
E. none of these
Answer: A
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Calculate the mean of the set of data values. If necessary, round to one more decimal place than the data values have. The number of hours that Bill spent exercising in each of the last eighteen weeks: 
A. 8.26 hr B. 7.80 hr C. 8.02 hr D. 7.39 hr
Graph the given functions on the same rectangular coordinate system. Describe how the graph of g is related to the graph of f.f(x) = 
, g(x) = 
- 4
A. g shifts the graph of f vertically up 4 units
B. g shifts the graph of f vertically up 4 units
C. g shifts the graph of f vertically down 4 units
D. g shifts the graph of f vertically down 4 units
Solve the problem.If f(?) = csc ? and f(a) = 5, find the exact value of f(-a).
A. 5
B. -5
C. 
D. - 
Provide an appropriate response.Use the Binomial Theorem to expand and simplify: (x2 + 7)5.
A. x5 + 35x4 + 490x3 + 3430x2 + 12,005x + 16,807 B. x10 + 35x8 + 980x6 + 6860x4 + 12,005x2 + 16,807 C. x7 + 35x6 + 490x5 + 3430x4 + 12,005x3 + 16,807 D. x10 + 35x8 + 490x6 + 3430x4 + 12,005x2 + 16,807