Evaluate the integral.
A. 17?
B. 34?
C. 51?
D. 
?
Answer: D
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Solve the problem.Over a specified distance, speed varies inversely with time. If Joe can drive from his house to his office in 40 minutes at an average speed of 40 miles per hour, what average speed is needed to drive the same distance in half an hour? If necessary, round your answer to the nearest tenth.
A. 60 miles per hour B. 30 miles per hour C. 53.3 miles per hour D. 50 miles per hour
Solve.y2 = 7
A. 
B. ±
C. 3.5
D. 49
Using a sum or difference identity, write the following as an expression involving functions of x.sin 
A. -cos x
B. 
cos x + 
sin x
C. 
cos x - 
sin x
D. sin x
A waste water system is being installed in a small town.The large pipes required to reach from the town to the water treatment plant come in 20-foot and 24-foot lengths. The city planner finds that twelve fewer of the 24-foot pipes will be required than if the 20-foot pipes were used. What is the distance from the town to the water treatment plant?
What will be an ideal response?