Answer:
25x^2 - 40x + 18 / 5x - 3
Step-by-step explanation:
25x2−40x+18/
5x−3
-7 2/3 + (-5 1/2) + 8 3/4 = -4 5/12
x ≈ 49.5°
We use cos∅ to solve this:
cosx = 13/20
x =
x = 49.4584