Question 1 1 pts Which of the following is a Riemann sum for f (x) = , with respect to the partition of [0 , 1] into n equal sub-intervals, using right endpoints as sample points? K= 1 n+k K=1 n+ k K= 1 n+k 1 K K=Question 2 1 pts The graph of a function 9(3) . with domain [0 , 9] , is given below. It is made out of two straight line segments and a semi-circle. Calculate fg{:e} rim . Round your answer to two decimal places. I] Question 3 1 pts The average value of the function f() = on the interval [0, b] is 12. What is the value of b ? Your answer should be an integer