N
The volume of a cone is 300 cm' and the height of the cone is 10 cm.
The formula for finding the volume of a cone is Va
What is the approximate radius of the cone?
3 cm
5 cm
9 cm
D)
28 cm

Which is equivalent to 10/12? options: 10/18 5/6 3/12 9/11

The number of branches on a tree demonstrates the fibonacci sequence. how many branches would there be on the next two levels of this tree? 13 | | | m branches

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) = .