Please help, multiple choice questions and i don't need an explanation (though would appreciate one). will give helpful rating.

A region bounded by f(x) = x, y = 0. x = 1, and x = 4 is shown below. Find the volume of the solid formed by revolving the region about the x-axis. 12345678 A region bounded by f(x) = -x + 5. y = 2. and x = 0 is shown below. Find the volume of the solid formed by revolving the region about the x-axis. The base of a three-dimensional figure is bound by the line x = y? and the y-axis on the interval [0, 2]. Vertical cross-sections that are perpendicular to the y-axis are rectangles with height equal to 3. Find the volume of the figure. - NWA U 54 32 -1 1 2345 O O 15 A O 0 8The base of a three-dimensional figure is bound by the line y = -x2 + 4 on the interval [-1, 1]. Vertical cross-sections that are perpendicular to the x-axis are right triangles with height equal to 6. Find the volume of the figure. 32 -1 1 23 4 5 6 7 O O O 44 3 O 22A region bounded by f(2:) = x/a: + Z , y = O, x = -3, and x = 0 is shown below. Find the volume of the solid formed by revolving the region about the x-axis. 4-3-2- 123456 -2 3 4