Solve the problem.Two recording devices are set 2600 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. 1072.57 feet
B. 1284.52 feet
C. 4449.72 feet
D. 436.36 feet
Answer: D
Mathematics
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We use ln to denote the natural logarithm. The solution for t of the equation
is:
?
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A store owner finds that the demand function for a product he sells is 
, where D(p) is the number of items that can be sold in one day at a price of p dollars. Find the elasticity function for this demand function.
A. E(p) = 
B. E(p) = 
C. E(p) = 
D. E(p) = 
Mathematics
Perform the addition. 
A. 398 B. 4,953 C. 5,944 D. 5,844
Mathematics
Write the equation as an equivalent logarithmic equation.53 = 125
A. log125(5) = 3 B. log5(3) = 125 C. log5(125) = 3 D. log3(125) = 5
Mathematics