13. Write the following definite integral x Vx2 + 15 dx as a limit using right endpoints. In problems 14 - 16, use the properties of definite integrals to support your answer. Be specific. 6 6 4 14. If f(x) dx = 9 and f(x) dx = 3.7, then f (x) dx =? 2 4 12 4 4 4 15. If f(x) dx = 3 and g(x) dx = 7, then [5f (x) - 29(x)] dx =? 1 16. Find maximum and minimum values for f(x), then estimate x2 + 1 dx