Answer:
The height of the second cylinder is 30mm
Step-by-step explanation:
Given
Cylinder 1:


Cylinder 2

See attachment
Required
Determine h, the height of the small one
To do this, we make use of the following equivalent ratios;

This gives:

Express as fraction

Simplify

Cross multiply


What is it that you are looking for ?
x or y ?
X^2 + x + 1 + 3x^2 + 3x + 2. Just combine the like terms:
x^2 + 3x^2 + x + 3x + 1 + 2
4x^2 + 4x + 3. <--- the sum.
Answer:
x=13
Step-by-step explanation:
18-5=13. You have to subtract 5 from 5 itself and then 18.