Express the number in terms of j (if necessary, round the result to three significant digits). 

A. 9
B. 81j
C. 9j
D. -9j
E. -9


Answer: C

Mathematics

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Evaluate the line integral of f(x,y) along the curve C.f(x, y) = y2 + x2, C: the perimeter of the circle x2 + y2 = 9

A. 27? B. 6? C. 54? D. 18?

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Indicate whether the value of x shown is a solution to the given equation.2x = 14, x = 7

A. Yes B. No

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Find the distance between the pair of points. Give your answer in exact form and where appropriate find an approximation to three decimal places. and 

A.  ? 0.808
B.  ? 0.439
C.  ? 0.714
D.  ? 4.048

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