Answer:
y = x
Step-by-step explanation:
The inverse of f(x) = x is just y = x.
1.) x=4
2.)? 20=32-50
3.)x= 16 divided by 4,3+1, etc.
The formula for surface area of a sphere: A = 4 pi r^2.
Since the radius is 30 m then A = 4pi30^2.
30^2 x 4 =3600
A=3600pi m
