Solve.Elissa wants to set up a rectangular dog run in her backyard. She has 32 feet of fencing to work with and wants to use it all. If the dog run is to be x feet long, express the area of the dog run as a function of x.
A. A(x) = 16x - x2
B. A(x) = 15x - x2
C. A(x) = 18x2 - x
D. A(x) = 17x - x2
Answer: A
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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.
In applying the cheapest-link algorithm to this graph, the fourth edge added to the circuit is:
A. AD. B. BF. C. CE. D. BC. E. none of these
Plot and label the points.E: (1, 4)F: (2, 0)G: (-3, 1)H: (2, -4)
A. 
B. 
C. 
D. 
?You are in a boat 2 miles from the nearest point on the coast. You are to go to point Q located 3 miles down the coast and 1 mile inland (see figure). You can row at a rate of 1 miles per hour and you can walk at a rate of 2 miles per hour. Toward what point on the coast should you row in order to reach point Q in the least time?
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?
A. ?3 miles B. ?8 miles C. ?2 miles D. ?1 mile E. ?5 miles
For the given function, use the graph to identify thex-value for which
. You may use the derivative to check your conclusion.
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A. 
B. 
C. 
D. 
E. 