Find the inverse of the function.f(x) = e7x
A. f-1(x) = 
ln(x)
B. f-1(x) = 7 ln(x)
C. f-1(x) = -7 ln(x)
D. f-1(x) = ln 
Answer: A
Mathematics
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Solve the equation.
= 
+ 5
A. {5} B. {0} C. ? D. {-5}
Mathematics
Graph the function.f(x) = 2(x + 2)
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The intensity of a radio signal from the radio station varies inversely as the square of the distance from the station. Suppose the the intensity is 8000 units at a distance of 2 miles. What will the intensity be at a distance of 3 miles? Round your answer to the nearest unit.
A. 3582 units B. 3520 units C. 3539 units D. 3556 units
Mathematics
Factor out the greatest common factor.25y - 100
A. 25(y - 4) B. 100 C. No common factor (except 1) D. 25y
Mathematics