Tyron and penelope both bought 4-wheelers. tyron paid $199 up front,
and will pay the remainder in 12 payments of $50 each. penelope paid
nothing up front, and will make 18 payments of $49. who got the better
buy?

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) = .

How do you write a paragraph proof to prove that the corresponding angles shown are congruent

Write the function for the graph. (1.8) (0,4)