Find an approximation of the area of the region R under the graph of the function f on the interval?

Find an approximation of the area of the region R under the graph of the function f on the interval [0, 3]. Use n = 5 subintervals. Choose the representative points to be the midpoints of the subintervals. (Round your answer to one decimal place.)

f(x) = 2e^x

Bryce2016-11-11T12:48:31Z

I used a spreadsheet.
MRAM≈ 37.6044631518