A,B,D i think so sorry if its wrong
It's the right angle. The circumcenter is in half of hypotenuse.
The formula of a midpoint of segment BC:

We have the points B(-2, -2) and C(7, -5). Substitute:

Answer: (2.5, -3.5)
I think the answer is 23
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
3
Step-by-step explanation:
9/3=3.11111111 round it and you get 3
Answer:c
Step-by-step explanation:7x15