Approximate the area under the graph of f(x) and above the x-axis with rectangles, using the following methods withn=4. f(x) = e* + 5 from x = - 2 to x 2 (a) Use left endpoints. (b) Use right endpoints. (c) Average the answers in parts (a) and (b) (d) Use midpoints. The area, approximated using the left endpoints, is . (Round to two decimal places as needed.)

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