(05.01)Using n = 4 equal-width rectangles, approximate . Use the left end-point of each sub-interval to determine the height of each rectangle.
Essay FeedbackGreat start but you did not answer the question. It is asking you to evaluate the integral which means to find the net area.Points earned on this question:6Question 2 (Worth 10 points)(05.02)Water leaks from a tank at the rate of r(t) gallons per hour. The rate decreased as time passed, and values of the rate at two-hour time intervals are shown in the table below. The total amount of water that leaked out is evaluated by a Riemann sum. Find the upper estimate (left end-points of each rectangle) for the total