Use Stokes' Theorem to calculate the circulation of the field F around the curve C in the indicated direction.F = 3yi + 7xj + z3k; C: the counter-clockwise path around the perimeter of the triangle in the x-y plane formed from the x-axis, y-axis , and the line y = 2 - 4x
A. - 4
B. 1
C. 4
D. 2
Answer: D
Mathematics
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Find the work done by F over the curve in the direction of increasing t.F = -4zi + 7xj + 6yk; C: r(t) = ti + tj + tk, 0 ? t ? 1
A. W = 18
B. W = 
C. W = 9
D. W = 3
Mathematics
Identify the unknown amount as the percent, part, or whole.What percent of 90 is 4?
A. whole B. part C. percent
Mathematics
Identify the property illustrated by the expression.24 + (2 + 22) = (24 + 2) + 22
A. identity element for addition B. commutative property of addition C. associative property of addition D. distributive property
Mathematics
Express the phrase as a ratio in lowest terms.90 cm to 60 cm
A. 
B. 
C. 
D. 
Mathematics