Answer:
Hope the picture will help you......
c is the answer
Step-by-step explanation:
x^2 + 12x + 36=0
(x+6) (x+6)=0
x≠-6
range should be all real numbers and domain (-∞, -6) (-6, ∞)
cosß=z/24
z=cos30°(24)
z=20,78