(1, -2) because the expression inside the square root must be > or = 0. The square root of a negative number is imaginary complex numbers.
x - 1 = 0
x = 1
then y = -2
Step-by-step explanation:

Hence, option A 85° is the correct answer.
Answer:
Step-by-step explanation:
- (3/4x + 2) - (1/4x + 5) =
- 3/4x - 1/4x + 2 - 5 =
- 2/4x - 3 =
- 1/2x - 3
Correct choice is D