Answer:
![\large\boxed{36\pi}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7B36%5Cpi%7D)
Step-by-step explanation:
The formula of a volume of a sphere:
![V=\dfrac{4}{3}\pi R^3](https://tex.z-dn.net/?f=V%3D%5Cdfrac%7B4%7D%7B3%7D%5Cpi%20R%5E3)
R - radius
We have R = 3 ?. Substitute
![V=\dfrac{4}{3}\pi(3^3)=\dfrac{4}{3}\pi(27)=(4)\pi(9)=36\pi](https://tex.z-dn.net/?f=V%3D%5Cdfrac%7B4%7D%7B3%7D%5Cpi%283%5E3%29%3D%5Cdfrac%7B4%7D%7B3%7D%5Cpi%2827%29%3D%284%29%5Cpi%289%29%3D36%5Cpi)
If the radius is 30, then the volume is:
![V=\dfrac{4}{3}\pi(30^3)=\dfrac{4}{3}\pi(27,000)=(4)\pi(9,000)=36,000\pi](https://tex.z-dn.net/?f=V%3D%5Cdfrac%7B4%7D%7B3%7D%5Cpi%2830%5E3%29%3D%5Cdfrac%7B4%7D%7B3%7D%5Cpi%2827%2C000%29%3D%284%29%5Cpi%289%2C000%29%3D36%2C000%5Cpi)
If 30 is the length of diameter, then the radius R = 30 : 2 = 15.
Therefore the volume:
![V=\dfrac{4}{3}\pi(15^3)=\dfrac{4}{3}\pi(3,375)=(4)\pi(1,125)=4,500\pi](https://tex.z-dn.net/?f=V%3D%5Cdfrac%7B4%7D%7B3%7D%5Cpi%2815%5E3%29%3D%5Cdfrac%7B4%7D%7B3%7D%5Cpi%283%2C375%29%3D%284%29%5Cpi%281%2C125%29%3D4%2C500%5Cpi)
Answer:
8 hours
Step-by-step explanation:
72 miles per hour
576/72= 8
Answer:
2400 words
Step-by-step explanation:
80 = 2 min
60min ÷ 2min = 30min
30 × 80 = 2400 words
The answer is in the picture .:...