Need help with the first and last problems

If f(x) = 4x2 - 9x, 0 s x 5 3, evaluate the Riemann sum with n = 6, taking the sample points to be right endpoints. RX = X Need Help? Read It Master It Submit Answer [1/1 Points] DETAILS MY NOTES SCALCET9 5.XP.2.003.MI. PREVIOUS ANSWERS If f(x) = ex - 1, 0 s x S 2, find the Riemann sum with n = 4 correct to six decimal places, taking the sample points to be midpoints. = 4.322986 Need Help? Read It Watch It Master It Submit Answer [0/2 Points] DETAILS MY NOTES SCALCET9 5.2.007. PREVIOUS ANSWERS A table of values of an increasing function fis shown. 10 14 183 22 26 30 fx -15 30 Use the table to find lower and upper estimates for f(x) dx. (Use five equal subintervals.) lower estimate X upper estimate X Need Help? Read It Watch It