I WILL GIVE Which equation is represented by the graph below O y = In x-3
O y = In x-4
y=e* - 3
O y =e*-4 - 4

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

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) = .