Solve the problem. If necessary, round to the nearest tenth.A diagonal crosswalk at an intersection of First Street and Grand Avenue is the hypotenuse of a triangle in which crosswalks across each street are the legs. First Street is 27 feet wide and Grand Avenue is 45 feet wide. How much shorter is the distance traveled by pedestrians using the diagonal crosswalk rather than using both crosswalks that form the legs of the triangle.
A. 19.5 feet
B. 18 feet
C. 52.5 feet
D. 7.5 feet
Answer: A
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Is the function graphed below one-to-one?
A. Yes B. No
Simplify the expression. Assume that variables represent nonzero numbers.(w6)2(9w5)
A. 9w13 B. 9w60 C. 9w17 D. w13 + 9
Solve the problem. Round your answer, if appropriate.A man 6 ft tall walks at a rate of 3 ft/sec away from a lamppost that is 23 ft high. At what rate is the length of his shadow changing when he is 60 ft away from the lamppost? (Do not round your answer)
A. 
ft/sec
B. 
ft/sec
C. 30 ft/sec
D. 
ft/sec
Solve the problem.The average per-person annual consumption of hot dogs is shown in the table. Let C be the average per-person consumption of hot dogs at t years since 2002. C = 0.97t + 18.41 can be used to model the data.
What is the t-intercept and what does it mean in this situation?
A. (0, 18.41); In 2002 the average consumption was 18.41 hot dogs per-person. B. (-18.98,0); In 2002 the average consumption was 18.98 hot dogs per-person. C. (-18.98,0); In 1983 the average consumption was 0 hot dogs per-person. D. (0.05, 0); Each year the average consumption is increased by 0.05 hot dogs per person.