Answer:
3.14 inches
Step-by-step explanation:
area of circle = πr²
=> 3.14 x 1 x 1
=> 3.14 inches
I think it might be r= -3
Answer:
y = -8
Step-by-step explanation:
6/-3 = -2
4 * -2 = -8
y = -8
Answer:

And since we know the surface area 326.7 in^2 we can solve for the value of r like this:

And replacing we got:

And the best answer would be:
5.1 in
Step-by-step explanation:
For this case we need to use the formula for the surface area of a sphere given by:

And since we know the surface area 326.7 in^2 we can solve for the value of r like this:

And replacing we got:

And the best answer would be:
5.1 in
It is A because it can’t be B and it can’t be C and it can’t be D so my answer is A