Acar dealership pays a wholesome price of $12,000 to purchase a vehicle. the car dealership wants to make a 32% profit. by how much will they mark up the price of the vehicle? after the markup, what is the retail price of the vehicle?

Find the roots of the equation below. x^2 - 6 + 9 = 0

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) = .

Which of the following circles have their centers on the x-axis? check all that apply.