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 = 25; direction is outward
A. - 10?
B. - 10
C. 10
D. 10?
Answer: D
Mathematics
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Simplify the expression. If any variables are present, assume that they are positive.
A. 
B. 2xy
C. 4
D. 2
Mathematics
Which of the following is more probable? A. Flipping a coin 4 times and obtaining at least 3 heads.B. Flipping a coin 5 times and obtaining at least 3 heads.?
A. A B. B C. same D. cannot tell
Mathematics
Graph the sinusoidal function.y = -4 sin (
x)
A. 
B. 
C. 
D. 
Mathematics
Multiply or divide as indicated. Write the answer in lowest terms. 
? 
A. 
B. 
C. 
D. 
Mathematics