Which of the following orders 75%, 1/2, .375, and 5/8 from least to greatest a. 1/2, 75%, 0.375, 5/8 b. 1/2, 0.375, 75%, 5/8 c. 0.375, 1/2, 75%, 5/8 d. 0.375, 1/2, 5/8, 75%

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) = .

Complete the steps to find 4.830 ÷ 5

What is the length of the segment, endpoints of which are intersections of parabolas y=x^2− 11/4 x− 7/4 and y=− 7 /8 x^2+x+ 31/8 ?