Hey there :)
The volume formula of a cylinder is:
V =
![\pi](https://tex.z-dn.net/?f=%20%5Cpi%20)
r²h
The volume of the larger volume is given to be 9648³ and the height is 18 in
We need to find the radius first
9648 =
![\pi](https://tex.z-dn.net/?f=%20%5Cpi%20)
r²(18)
![\frac{9648}{18}](https://tex.z-dn.net/?f=%20%5Cfrac%7B9648%7D%7B18%7D%20)
=
![\pi](https://tex.z-dn.net/?f=%20%5Cpi%20)
r²
536 =
![\pi](https://tex.z-dn.net/?f=%20%5Cpi%20)
r²
![\frac{536}{ \pi}](https://tex.z-dn.net/?f=%20%5Cfrac%7B536%7D%7B%20%5Cpi%7D%20)
= r²
![\sqrt{ \frac{536}{ \pi } }](https://tex.z-dn.net/?f=%20%5Csqrt%7B%20%5Cfrac%7B536%7D%7B%20%5Cpi%20%7D%20%7D%20)
= r
r ≈ 13.06
The ratio of the big cylinder to small cylinder is:
18 : 9 (given height)
So the big cylinder is
2 times bigger than the small cylinder
Therefore the radius of the big cylinder is as well 2 times bigger
![\frac{13.06}{2} = r](https://tex.z-dn.net/?f=%20%5Cfrac%7B13.06%7D%7B2%7D%20%3D%20r%20)
r ≈ 6.53 ( the radius of the small radius )
V (of small cylinder) =
![\pi](https://tex.z-dn.net/?f=%20%5Cpi%20)
(6.53)²(9)
= 1206 in³
8.75 is the answer rrrrrr
First of all, you surely do have a lot of incorrect grammar in your statement. I can't understand a word that you are asking.
Y= -x and y= -1/x
Are one-one
y= -x, inverse x= -y
Identify function
hence, inverse of y= -x in y= -x
similarly in the case of y= -1/x
so option (D) I and II, only