The diameter, D, of a sphere is 19.4 mm. Calculate the spheres volume, V. Use the value 3.14 for n, and round your answer to the nearest tenth. ( do not round any intermediate computations.)

ANSWER:
3821.1 mm³
STEP-BY-STEP EXPLANATION:
We have that the formula to determine the volume of a sphere is the following:
[tex]V=\frac{4}{3}\pi r^3[/tex]W determine the radius, knowing that it is equal to half the diameter, then we substitute and calculate the volume, like this:
[tex]\begin{gathered} r=\frac{D}{2}=\frac{19.4}{2} \\ \\ r=9.7\text{ mm} \\ \\ \text{ We replacing:} \\ \\ V=\frac{4}{3}\left(3.14\right)\left(9.7\right)^3 \\ \\ V=3821.1\text{ mm}^3 \end{gathered}[/tex]The volume of the sphere is 3821.1 mm³