Find the length of the unknown side of the right triangle with sides a, b,c where c is the hypotenuse. Give both an exact answer and approximation..
a=square root 24, c=24

The water has been on the stove y=9.5x+62.1 after how many minutes will the tempature be 138.1 f

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) = .

Asequence is defined recursively using the formula f(n + 1) =f(n) - 5. which sequence could be