Answer:
I think its 90 but im not sure.
Step-by-step explanation:
Answer:
f(x) = (x+6)² - 10
Step-by-step explanation:
To write the equation in vertex form we, we need to use completing square method.
f(x) = x²+ 12x + 26 = (x² + 2*x*6 + 6²) - 6² + 26 = (x+6)² -36 + 26 =
= (x+6)² - 10
f(x) = (x+6)² - 10
Note that A of a circle is A = pi*r^2.
Here, we use A = 3.14*r^2.
We are able to solve this for r^2: r^2 = A / 3.14
If A = 1964 square units, then r^2 = (1964 sq units) / 3.14, or about 625 sq units, so that r is about 25 units. This would be the largest possible radius.
f A = 1810 square units, then r^2 = (1810 sq units) / 3.14, or about 576 sq units, so that r is about 24 units. This would be the smallest possible radius.
The radius would be between 24 and 25 units long (answer)
