Morgan works for a company that ships packages and must measure the size of each box that needs to be shipped. morgan measures a box and finds the length is 4.5 inches, the width is 9 inches, and the height is 6.5 inches. what is the volume of the box?

Hello i need some with trigonometric substitutions. [tex]\int\limits^a_b {x} \, dx[/tex]

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .