Answer:
2. There are 5 students 14 years old 7 grade
Answer:
15
Step-by-step explanation:
Answer:

Step-by-step explanation:
First, the formula for the volume of a sphere is:




![r = \sqrt[\leftroot{-2}\uproot{2}3]{\frac{3}{4\pi}V}](https://tex.z-dn.net/?f=r%20%3D%20%5Csqrt%5B%5Cleftroot%7B-2%7D%5Cuproot%7B2%7D3%5D%7B%5Cfrac%7B3%7D%7B4%5Cpi%7DV%7D)
<u><em>If there is any steps you are unsure of, feel free to ask in the comments.</em></u>
Answer:
It was helpful to construct points D and A to be the same distance from C because it gives you an equal arc on both sides, which will intersect twice, forming a colinear line that is perpendicular to line AB.
Step-by-step explanation: