A. Y=4/7x + 1

B. Y= -4/7x + 1

C. Y= 7/4x + 1

D. Y= -7/4x +1

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°

use distributive property on all like terms and change your signs if you have a double negative or if you have positive/negative

answer: 4  

the square root of 16 is 4. it is a very simple mathematic concept. a square root when a number multiplied by itself will result in a number. here, the number 16 comes when 4 is multiplied by 4. hence the square root of 16 is 4. you can always figure out a square root by the inverse operation of squaring.