Solve the problem.A pest control company sprays insecticide around the perimeter of a 490 ft by 350 ft building. If the spray costs $0.14 per foot, how much did the job cost to the nearest dollar?
A. $24,010
B. $118
C. $235
D. $2001
Answer: C
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Evaluate the integral.
A. 
ln
- 
ln 
+ C
B. ln
- ln 
+ C
C. 
ln
+ 
ln
+ C
D. 
ln
- 
ln
+ C
What value of x gives a minimum for 
? Restrict your attention to the horizontal span of 9 to 15. Be careful. You are asked about a minimum, not a maximum. Round your answer to two decimal places.
?
A. 47.69 B. 15.00 C. 37.26 D. 11.82
Find the expected value.A new light bulb has been found to have a 0.02 probability of being defective. A shop owner receives 500 bulbs of this kind. How many of these bulbs are expected to be defective?
A. 20 B. 100 C. 10 D. 500
Solve the problem.Two recording devices are set 3400 feet apart, with the device at point A to the west of the device at point B. At a point on a line between the devices, 300 feet from point B, a small amount of explosive is detonated. The recording devices record the time the sound reaches each one. How far directly north of site B should a second explosion be done so that the measured time difference recorded by the devices is the same as that for the first detonation? Round to the nearest hundredth when necessary.
A. 1673.32 ft B. 664.29 ft C. 1517 ft D. 5378.97 ft