You have money in your wallet, but you don’t know the exact amount. When a friend asks you, you say that you have 20 dollars give or take 5. Use an absolute value equation to find the greatest amount of money in your pocket?

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) = .

Afair die is cast four times. calculate the probability of obtaining exactly two 6's round to the nearest tenth of a percent

2,10,-50 next two numbers geometric sequence