I did the calculations two ways. The last data item was 185.00!
I wasn't sure if this was correct or a typo. With 185.00: mean 33.31. STD dev 53.68. With 185.00 changed to 18.50: mean 14.81 std dev 2.75
Answer:
Step-by-step explanation:
The answer is (c)
because when you multiply you get c
Answer:
h = 18.88 inches
Step-by-step explanation:
Given that,
The circumference of a cylinder is 20 inches
The volume of the cylinder, V = 600 cubic inches
We need to find the height of the cylinder. We know that the volume of a cylinder is given by :
![V=\pi r^2h](https://tex.z-dn.net/?f=V%3D%5Cpi%20r%5E2h)
r is radius
We know that,
circumference = 2πr
![r=\dfrac{C}{2\pi}\\\\r=\dfrac{20}{2\pi}\\\\r=3.18\ \text{inches}](https://tex.z-dn.net/?f=r%3D%5Cdfrac%7BC%7D%7B2%5Cpi%7D%5C%5C%5C%5Cr%3D%5Cdfrac%7B20%7D%7B2%5Cpi%7D%5C%5C%5C%5Cr%3D3.18%5C%20%5Ctext%7Binches%7D)
So,
![h=\dfrac{V}{\pi r^2}\\\\h=\dfrac{600}{\pi\times (3.18)^2}\\\\h=18.88\ \text{inches}](https://tex.z-dn.net/?f=h%3D%5Cdfrac%7BV%7D%7B%5Cpi%20r%5E2%7D%5C%5C%5C%5Ch%3D%5Cdfrac%7B600%7D%7B%5Cpi%5Ctimes%20%283.18%29%5E2%7D%5C%5C%5C%5Ch%3D18.88%5C%20%5Ctext%7Binches%7D)
So, the height of the cylinder is 18.88 inches.