What is the volume of a cylinder with base radius 2 and height 9? Either enter an exact answer in terms of 7 or use 3.14 for 7 and enter your answer as a decimal.
9

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the curves about the given axis.y = 7ex, y = 7e^-x, x = 1; about the y-axis

Can someone, me with this.i really need with this

Which of the following represents a function? 50 !