Answer:
30°
Step-by-step explanation:
A triangle always adds up to 180° so since one side of the triangle is already 90°, that means the other two sides add up to be 90° as well.

That is where they intersect each other
it looks like at x=-1 and x=1
so -1 and 1 are the answers
first and 3rd option
Answer:
1747
Step-by-step explanation:
Xy = -10/ 4
= -2.5
So, xy = -2.5