Find the flux of the vector field F across the surface S in the indicated direction.F = 
k ; S is the upper hemisphere of x2 + y2 + z2 = 4; direction is outward
A. - 2
B. 2
C. 2?
D. - 2?
Answer: C
Mathematics
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Solve the differential equation.x2 
= 8y
A. y = Ce- 8/x
B. y = Ce8/x
C. y = Ce- 8x
D. y = - 
+ C
Mathematics
Simplify. Assume that all variables represent positive numbers.
A. 64x6
B. 8x6x
C. 8x
D. 8x6
Mathematics
What is the annual percentage yield (APY) for money invested at the given annual rate? Round results to the nearest hundredth of a percent.5% compounded semiannually
A. 5.00% B. 5.13% C. 5.09% D. 5.06%
Mathematics
Find the exact value of the expression.cot-1 
A. 
B. 
C. 
D. 
Mathematics