Calculate the circulation of the field F around the closed curve C.F = - 
x2yi - 
xy2j; curve C is r(t) = 10 cos ti + 10 sin tj, 0 ? t ? 2?
A. - 
B. 0
C. - 
D. - 
Answer: B
Mathematics
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Simplify.
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A. 21
B. 21
C. 18
D. 42
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Find the zero of the linear function.f(x) = 6x - 6
A. -1 B. 0 C. 1 D. -6
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Solve.A sales representative is paid a commission rate of 4.4%. Find her commission if she sold $141,680 worth of goods last month.
A. $6233.92 B. $3220.00 C. $147,913.92 D. $32,200.00
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Find the best buy and give the unit price.Brand X 4 oz for $0.56Brand Y 6 oz for $0.90
A. Brand X, $0.14 B. Brand Y, $0.15 C. Brand Y, $0.14 D. Equal value
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