1 x+8 (a) Estimate the area under the graph of the function f (ac) = from an 2 0 to x = 3 using a Riemann sum with n 2 10 subintervals and right endpoints. Round your answer to four decimal places. area = Number 1 (b) Estimate the area under the graph of the function f (w) = +8 av from m = 0 to m = 3 using a Riemann sum with n = 10 subintervals and left endpoints. Round your answer to four decimal places. area = Number