Answer:104
Step-by-step explanation:
The formula for finding the radius of a circle while only knowing the circumference is r=C ÷ 2π. Substituting the value 10 for C, and 3.14 for π, we get:
r=10 ÷ 3.14 · 2 Now we divide 10 by 6.28
r≈1.59
(fg)(x)=f(g(x))
So all you have to do is plug the g(x) in
3(3x^2)+9=f(x)
9x^2+9=f(x)