Plz answer each of them thanks so much!

9. For each of the following, set up the integral of an arbitrary function f(r, y) over the region in whichever of rectangular or polar coordinates is most appropriate. (Use t for 0 in your expressions.) (a) The region 1 0 With a = b= CE , and d= integral = Sar d d_ (b) The region With a = and d= integral = fa fa Make Interactive 11. Using polar coordinates, evaluate the integral which gives the area which lies in the first quadrant between the circles s' + = 100 and 12 - 101 + =0. Make Interactive 15. (You can check your answer using Use the polar coordinates to find the volume of a sphere of radius 10 the formula for volume of a Make Interactive