What is the average speed (miles/hour) for an object going 1500 feet in 1 minute. round answer to two decimal places.

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) = .

Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great

Which of the following is the correct solution to the linear inequality shown below? y< 1/2x-4