Using Green's Theorem, compute the counterclockwise circulation of F around the closed curve C.F = (x2 + y2)i + (x - y)j; C is the rectangle with vertices at (0, 0), (6, 0), (6, 6), and (0, 6)
A. 252
B. 0
C. -180
D. 180
Answer: C
Mathematics
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, -
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A. 
B. 
C. 
D. 
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The graph shows sales in thousands of dollars for 1989 and 1990. Use it to answer the question. 
What month in 2007 had the lowest sales?
A. Month 12 B. Month 5 C. Month 2 D. Month 3
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Determine if the given set of whole numbers is closed under multiplication.{1, 42, 43, 44, . . . }
A. Closed B. Not closed
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Give the rectangular coordinates for the point.(8, 225°)
A. (-4?, -4?)
B. (-4
, -4
)
C. (4
, 4
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D. (-4
, -4
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