5. Use double integrals to find the area of the region bounded by: a) xy-9, y=x, y=0, x=9 b) y = 6x-x (Show the steps. Select one question) 6. Find the volume of the solid region R bounded by: a)f(x,y)-e", y=0, y=x, x=1 b)z=x 2-y+4, z-0, y-0, x=0, x=4 (Show the steps. Select one question) , y=x2-2x
