Calculus 2 and show explanation please!

1.

If0,find the volume of the solid obtained by rotating the region enclosed by the graphs about the line=25.

y=25.

=^2 ,=20 ,=0

(Use symbolic notation and fractions whereneeded.)

2.

Use the graphing utility to graph thecurve=^2+6.

Find the volume of the solid obtained by rotating the region bounded by the curve=^2+6,=0,=0, and=2 aboutthe-axis.

Hint:Express the volume as a sum of two integrals alongthe-axis.

they-axis.

(Express numbers in exact form. Use symbolic notation and fractions whereneeded.)