If the bowling fans get their way and the group plays only 1 game of laser tag will they have enough money to bowl 5 games? Use your expression from question 3 to calculate the cost of 1 game of laser tag and 5 games of bowling

How many grams must be adde to 970g to make 1 and a half kg

What is the lcm of 16 and 40 ? 24 and 40 ?

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) = .