Coach Jill brought 28 \text{ L}28 L28, start text, space, L, end text of sports drink to the soccer game. She divided the sports drink equally between 777 coolers. How many milliliters of sports drink did Coach Jill put in each cooler?

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) = .

What is the ratio of the length of an object in yards to the length of the same object in miles?

Find the zeros of each function. f(x) = x^2 + 5x - 6