For each problem, use a left-hand Riemann sum to approximate the integral based off of the values in the table. 1) 0 20 f(x)dx x 0 4 9 19 20 f(x) 5 3 4 3 6

Question

Riemann Sums Practice

Answer 1

∫_{(0 to 20)} f(x)dx ≈ f(0)(4-0) + f(4)(9-4) + f(9)(19-9) + f(19)(20-19)

= (5)(4) + (3)(5) + (4)(10) + (3)(1) = 78