Use f(x) = 1 2 x and f -1(x) = 2x to solve the problems. f(2) = ⇒ 1 f−1(1) = ⇒ 2 f−1(f(2)) = ⇒ 2 f−1(−2) = f(−4) = f(f−1(−2)) =

450 is the final answer! : )

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°

h= 12 inches

step-by-step explanation:

multiplication is multiplication.   it might feel harder depending on what level of math you are in, but generally it will be the same old stuff, while implementing some new concepts and methods of solving work.