Question

Measurements of a lake’s width were taken at 15-foot intervals, as shown: (below)

Estimate integral (0,120) f(x) dx with n=4 using Left-hand approximation, Right-hand approximation, Trapezoidal approximation, and Midpoint.

Answer 1

x 0 15 30 45 60 75 90 105 120
f(x) 0 15 18 20 19 23 24 22 12

Answer 2

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