Answer:
![h=5in, r=1in](https://tex.z-dn.net/?f=h%3D5in%2C%20r%3D1in)
Step-by-step explanation:
The volume of a cylinder is:
![V=\pi*r^2*h](https://tex.z-dn.net/?f=V%3D%5Cpi%2Ar%5E2%2Ah)
where
is the radius and
is the height.
The height is 4 inches greater that the radius, so:
![h=r+4in](https://tex.z-dn.net/?f=h%3Dr%2B4in)
Substituting this in the formula for volume:
![V=\pi*r^2*(r+4)](https://tex.z-dn.net/?f=V%3D%5Cpi%2Ar%5E2%2A%28r%2B4%29)
the volume is ![V=5\pi in^3](https://tex.z-dn.net/?f=V%3D5%5Cpi%20in%5E3)
thus:
![5\pi in^3=\pi*r^2*(r+4in)](https://tex.z-dn.net/?f=5%5Cpi%20in%5E3%3D%5Cpi%2Ar%5E2%2A%28r%2B4in%29)
Dividing everything between pi:
![5in^3=r^2*(r+4in)](https://tex.z-dn.net/?f=5in%5E3%3Dr%5E2%2A%28r%2B4in%29)
![5in^3=r^3*+4r^2](https://tex.z-dn.net/?f=5in%5E3%3Dr%5E3%2A%2B4r%5E2)
We can see that the solution for this is ![r=1in](https://tex.z-dn.net/?f=r%3D1in)
since ![(1)^3*+4(1)^2=1+4=5](https://tex.z-dn.net/?f=%281%29%5E3%2A%2B4%281%29%5E2%3D1%2B4%3D5)
We have the radius, now we find the height:
![h=r+4in=1in + 4in = 5in](https://tex.z-dn.net/?f=h%3Dr%2B4in%3D1in%20%2B%204in%20%3D%205in)
![h=5in, r=1in](https://tex.z-dn.net/?f=h%3D5in%2C%20r%3D1in)
629.20/520=1.21
Powerof6V1.21= 1.0323
Rate of interest 3.23
Answer:
B
Step-by-step explanation:
Half of 70.00 dollars
To Find the HALF of something, Divide the number by 2
So 70.00 Dollars/ 2 Dollars
Answer is: 35 Dollars
To Check Answer Multiply the answer by 2
35 Dollars* 2= 70.00 Dollars.