1 1000 ml = 1 L If Sarah drinks 2.5 litres a day, how much will she drink in a week? and a month?​

Answer this question! 30 points and brainliest!

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?

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) = .