X^2 - 49 = (x + 7)(x - 7) = x^2 - 7x + 7x = 49 = x^2 - 49
Answer: 31.416
Step-by-step explanation:
One of the equations for a circle is (x - h)² + (y - k)² = r² where (h, k) are the center and r is the radius.
So after substitution:
(x + 6)² + (y - 2)² = 100
Notice the equation has the opposite of h and k and 100 is the result of squaring 10.
I believe it would be negative 9 because your subtracting by twelve again. I hope that helped
Answer:
I don't understand the question. Pls is there any picture
