Calculate the flux of the field F across the closed plane curve C.F = xi + yj; the curve C is the counterclockwise path around the circle x2 + y2 = 9
A. 6?
B. 18?
C. 0
D. 36?
Answer: B
Mathematics
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Match the graph to one of the polar equations.
A. r = 6 cos ? B. r = 3 + sin ? C. r = 6 sin ? D. r = 3 + cos ?
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Solve the equation.x2 - 3 = 0
A. ±3
B. ±3i
C. ±
D. ±i
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Solve.
= 
A. 5.68 B. 11.5 C. 1.388 D. 1.094
Mathematics
Complete the sentence.The absolute value of 13 is _____.
A. 26 B. 0 C. -13 D. 13
Mathematics