Step-by-step explanation:
the correct answer is c
Answer:
Use trig ratios to find unknown sides in right triangles.
-4x^2, -3x, -5
-4x^2 + 2x - 5 (1 + x)
-4x^2 + 2x - 5 + 5x
-4x^2 - 3x - 5
x = y =
= 90