A football is 11 inches from tip to tip and 7.2 inches in diameter at its thickest. The shape of the football can be modeled by the function f(x)=0.119x2+3.6\displaystyle {f{{\left({x}\right)}}}=-{0.119}{x}^{{2}}+{3.6}, for 5.5x5.5\displaystyle -{5.5}\le{x}\le{5.5}, where x\displaystyle {x} is in inches. Find the volume of the football by rotating the region bounded by the graph of f\displaystyle {f} about the x\displaystyle {x}-axis.

Volume =