Question

Which expression gives the volume of a sphere with radius 7?

Answer 1

A. is your answer 

Hope this helps! :)

Answer 2

Answer:  The correct expression is (A) $\dfrac{4}{3}\pi(7)^3.$

Step-by-step explanation:  We are given to select the correct expression that gives the volume of a sphere with radius 7 units.

We know that

the VOLUME of a sphere with radius 'r' units is given by

$V=\dfrac{4}{3}\pi r^3.$

Here, the radius of the given sphere is

r = 7 units.

Therefore, the volume of the sphere will be

$V=\dfrac{4}{3}\pi r^3\\\\\\\Rightarrow V=\dfrac{4}{3}\pi (7)^3.$

Thus, the required expression is $\dfrac{4}{3}\pi(7)^3.$

Option (A) is correct.