Simplify the expression. Assume all variables represent nonzero real numbers.(4xy)2

A. 16xy
B. 8xy
C. 16x2y2
D. 8x2y2


Answer: C

Mathematics

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Use a finite approximation to estimate the area under the graph of the given function on the stated interval as instructed.f(x) =  between x = 2 and x = 8 using the "midpoint rule" with two rectangles of equal width.

A.
B.
C.
D.

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Compute AB, if possible.A =  and B = 

A.
B.
C. not possible
D.

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Approximate to three decimal places.

A. 4.464 B. 3.463 C. 3.474 D. 3.464

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Determine whether the pair of lines is parallel, perpendicular, or neither.y = - x + 2y = x + 2

A. Parallel B. Perpendicular C. Neither

Mathematics