A voLume is described as follows: 1. the base is the region bounded by :1: = y2 + ly+ ? and .1: = y2 131; + 9?; 2. every,r cross section perpendicuLar to the y-axis is a semi-circle. Find the volume of this object. voLu me = I y = b / 4= 9 volume d V s (#83 ) dy = (5 (>)ay : IT xay V = ( 2 dy 8 5 2 [(- y'+loy+7) -(y= ley+ 97)] dy I UN [- zy2+ 284-90] dy 4 17 8 ( 4 2 - quy + 45 ) dy (343- 1054 +143043- 94504 +30375y 512 15 = 256 TT 15