Using the Divergence Theorem, find the outward flux of F across the boundary of the region D.F = x
i + y
j + z
k ; D: the thick cylinder 1 ? x2 + y2 ? 3 , 
A. 
?
B. 
?
C. 
?
D. 208?
Answer: B
Mathematics
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and the xy-plane
A. 20?
B. 80?
C. 
?
D. 200?
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Give the rectangular coordinates for the point.(3, 90°)
A. (-3, 0) B. (0, 3) C. (0, -3) D. (3, 0)
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Solve the equation by factoring.3x2 + 7x = 20
A. 
B. 
C. 
D. 
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Factor completely. If the polynomial is prime, state so.25x2 - 81y2
A. (5x - 9y)2 B. (5x + 9y)2 C. (5x + 9y)(5x - 9y) D. prime
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