Question 6 For the following problems use a Left Hand Riemann sum. Feel free to use your calculator on a majority of the calculations. Approximate the area under the curve f(x) = - 0.4x2 + 25 between x = 1 and x = 5 using 4 rectangles. Approximate the area under the curve f(x) = - 0.4x + 25 between x = 1 and x = 5 using 8 rectangles. Question Help: Video Submit