Estimate L4 and R4 over [07] for the function f(x) = 7x2. (Use decimal notation. Give your answers to three decimal places.) 1770.094 Incorrect 3484.094 In co rre ct Calculate R5 for f(x) = 3x2 + 8x over [1, 1]. (Give an exact answer. Use symbolic notation and fractions where needed.) Incorrect Find a formula for R N and compute the area under the graph of f (x) = (9x)2 over [1 , 5] as a limit. (Give your answer as a whole or exact number.) Nroo