What is the value of the following function when x = 0

-2

Step-by-step explanation:

Just walk your finger from left to right until you get to x=0 (the numbers on the horizontal axis). when you get there, find the y value (find how much you need to go up or down to get to where the function goes)

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°

1. sometimes

2. never true

3. sometimes

step-by-step explanation:

these are pretty self explanatory if you know what supp right and com angles are