Simplify the expression. Assume all variables represent nonnegative real numbers.4 -1/2
A. -2
B. 
C. - 
D. 2
Answer: B
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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 -9 ? x ? 9 and -2 ? y ? 0.
A. 8000(1 - e-2) ln 5 ? 16,587
B. 4000(1 - e-2) ln 
? 5896
C. 8000(1 - e-2) ln 
? 11,792
D. 16,000(1 - e-2) ln 
? 23,585
Find the flux of the curl of field F through the shell S.F = exi + eyj + 4xyk; S is the portion of the paraboloid 1 - x2 - y2 = z that lies above the 
A. 4 B. -4 C. 0 D. -4?
Find all possible functions with the given derivative.y' = 
A. 
+ C
B. 7
+ C
C. 
+ C
D. 
+ C
Solve the problem.How much money should you invest now to have $5000 in 12 years if you invest the money at a rate of 1.4%, compounded semiannually?
A. $2500.00 B. $4229.24 C. $4598.50 D. $3577.30