IS Use the fol lowing table to estimate f (x)dx. Assume that f(x) is a decreasingfunction. 0 15 amass? f (X) To estimate the value of the integral we use the left-hand sum approximation with Ax = n Then the left-hand sum approximation is a To estimate the value of the integral we can also use the right-hand sum approximation with Ax = n Then the right-hand sum approximation is n The v ofthe left- and right sum approximations is a better estimate which is n Use the following table to estimate W (t) dt. What are n and At? 3.0 3.4 3.8 4.2 4.6 5.0 W (t) 25 23 20 15 9 2 Enter the exact answers. To estimate the value of the integral we can use the left- and right-hand sum approximation with n = and At = Then the left-hand sum approximation is i and the right-hand sum approximation is The of the left- and right-hand sum approximations is a better estimate which is i25 Use the following table to estimate f (x) dx. Estimate the integral using the average of the left- and right-hand sums using as many subdivisions as possible. X 0 5 10 15 20 25 f (x) 90 84 65 57 44 29 Round your answer to the nearest integer. 25 f (x) dx = iUse a calculator or a computer to evaluate the definite integral. Round your answer to four decimal places. 3 ( er ) at =