Solve the problem.Two recording devices are set 3600 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, 200 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?
A. 1241.22 ft
B. 1788.85 ft
C. 425 ft
D. 7375.64 ft
Answer: C
Mathematics
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high and 
in diameter. It is full of oil weighing 
How much work does it take to pump the oil to a level 
above the top of the tank? Give your answer to the nearest ft ? lb.
A. 4,137,854.52 ft ? lb B. 8,275,709.03 ft ? lb C. 3,620,622.7 ft ? lb D. 3,448,212.1 ft ? lb
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Name the quadrant, if any, in which the point is located.(-2, 0)
A. III B. II C. IV D. None
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Factor a negative number or a GCF with a negative coefficient from the polynomial.-7x - 35
A. -7(x - 5) B. 7(-x - 5) C. -7(-x + 5) D. -7(x + 5)
Mathematics
Find the magnitude of the vector.
?
?
A. ?
B. ?
C. 
D. ?
E. ?
Mathematics