Wren and jenni are reading the same book. wren is on page 12 and reads 4 pages every night. jenni is on page 4 and reads 5 pages every night.

How do you solve a question like this?

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

Given that sin∅ = 1/4, 0 < ∅ < π/2, what is the exact value of cos∅? a. (√4)/4 b. (√15)/4 c. (4π)/2 d. (4√2)/4