Solve the problem.If f(x, y) = (4000ey)/(1 + 
/2) represents the population density of a planar region on Earth, where x and y are measured in miles, find the number of people within the rectangle -6 ? x ? 6 and -3 ? y ? 0.
A. 8000(1 - e-3) ln 
? 15,807
B. 8000(1 - e-3) ln 4 ? 10,538
C. 4000(1 - e-3) ln 4 ? 5269
D. 16,000(1 - e-3) ln 4 ? 21,076
Answer: D
Mathematics
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?
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