If a function uses variables other than x and y for its input and output variables, you take the original equation and solve for the input variable to find the inverse.

true
or
false
?

Step-by-step explanation:

When we talk about the input variable, it refers to the independent variable which most of the time is expressed as x. That means the output variable often refers to y, because that's the image or range.

So, in this case, if we want to find the inverse of a function, we just have to solve for x, that is, for the input variable. For example, if we have the following function

The input variable would be , so the inverse would be found by solving for that variable

However, we need to switch the position of variables to find the inverse function as follows

Therefore, to the inverse of a function we certainly have to solve for the input variable, but then we need to do an extra step, swtich variable's position, that's why this statement is false, because it doesn't express the full process.

d

step-by-step explanation:

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°