Answer:
[-1, infinity)
Step-by-step explanation:
The graphs starts from X=1 and remains defined from X =1 to infinity. The domain of the function is, thus, [-1, infinity)
Answer:
x=120°
Step-by-step explanation:
sum of all angles in a triangle is equal to 180
let the unknown angle be



You can make a proportion of 8/20 to 42/x and then simply cross multiply from there to solve for y
Answer:
.
Step-by-step explanation: