Sketch the graph of the function y = 20x − x2, and approximate the area under the curve in the interval [0, 20] by dividing the area into the given numbers of rectangles. Part A Use five rectangles to approximate the area under the curve.

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3

i hope this is what you were looking for.

see attached graph

answer: i believe it is c

step-by-step explanation:

because 5+4=9 so it would be 3^9