Use Stokes' Theorem to calculate the circulation of the field F around the curve C in the indicated direction.F = x2i + xyj + yk; C: the counter-clockwise path around the perimeter of the rectangle in the x-y plane formed from the x-axis, y-axis , x = 3 and y = 9

A. 243
B.
C. -243
D. - 


Answer: B

Mathematics

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Find the surface area of the figure. Use 3.14 as an approximation for ?. Round your result to the nearest tenth.A right circular cylinder with r = 4.7 in., h = 6.8 in.

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Solve the problem.In Country X, the average hourly wage in dollars from 1960 to 2010 can be modeled by  f(x) = Use f to estimate the average hourly wages in 1965, 1985, and 2005.

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Mathematics