Approximate the area under the curve and above the x-axis using n rectangles. Let the height of each rectangle be given by the value of the function at the right side of the rectangle.f(x) = 2x2 + x + 3 from x = -2 to x = 1; n = 6

A. 11
B. 13
C. 7
D. 9


Answer: B

Mathematics

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A.

B.

C.

D.

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