Previous
8

find the annual interest rate. round your answer to the nearest hundredth of a percent.

i=$160.67, p=$2000, t=8 months

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

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) = .

Which angle of rotation is an angle of rotational symmetry for all figures?