6) The graph of f (x) on the interval [0, 1] is shown below. Use a midpoint rectangle approximation with five equal subintervals to estimate the area. Show your calculations. f (X) -06- 0.4 L- 0 2- X 012 0:4 0.6 018 7) A table of values for g(x) on the interval [0, 20] is shown below. Use a trapezoid approximation with four equal subintervals to estimate the value of [ g(x) dx - 0 5 10 15 20 g(x 21 13 4 -8 -16