Can someone help?
Need to find x, and measure of angle DEF

Without graphing the linear functions, find the coordinates of the point of intersection of their graphs: y=3x−11 and y=4

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.

What is another way to express 36 +32