Solve the problem.The price p and the quantity x sold of a certain product obey the demand equation: 
What is the revenue to the nearest dollar when 400 units are sold?
A. $152,000
B. $88,000
C. $170,000
D. $10,000
Answer: B
Mathematics
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Evaluate the integral.
A. 
sin 2x - 
sin 14x+ C
B. - 
cos 14x - 
sin 14 x + C
C. 
sin 2x + 
sin 14x+ C
D. - 
cos 14x - 
cos 2x + C
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Calculate the median of the set.2% 2% 27% 21% 38% 43%
A. 21% B. 24% C. 23.5% D. 27%
Mathematics
Solve the problem.A 80-m-long, 8.9-mm-diameter rope hangs free from a ledge. The density of the rope is 55 g/m. How much work is needed to pull the entire rope to the ledge?
A. 176g J B. 176,000g J C. 4.4g J D. 16g J
Mathematics
Find the value of sin 158.8° rounded to four significant digits.
A. 0.3616 B. 0.5616 C. 0.1808 D. -0.3616 E. -0.1808
Mathematics