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) = x2 from x = 0 to x = 4; n = 4
A. 30
B. 33
C. 27
D. 36
Answer: A
Mathematics
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A. 
?
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?
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