Answer: B. 8 x 10^3
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
You are right. In circle equation we have =r² so the correct answer will be C od D. But we have to calculate the center of a circle.

Complete the square:

And we have:

So the answer is C (the same left side of equation).
Answer:452.4
Step-by-step explanation:
I really do wish I could help But I’m not sure I tried to figure it out and i just can’t get it