Answer:

Step-by-step explanation:
Answer:
2x^2-2x+9
Step-by-step explanation:
23(3) + 3
= 72
Why do you write 2 equations?
I think it is 0 because I googled it.
1 is 90o
2 is 90 - 27 = 63
3 63 angles 2 and 3 are in an isosceles triangle. They are opposite equal sides so the angles are equal.