Answer:
7
Step-by-step explanation:
every o e move you make on x you make 7 on y. (made 2 moves in x and moved 14 on y) so if you moved 21 on y.... 21/7=3 so you move 3 on x so 4+3=7
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


Answer:
105
Step-by-step explanation:
15*6=90
6*5=30
30/2=15
90+15=105
C=2pir
20pi=2pir
20pi/2pi=2pir/2pi
R=10
Height=10/2=5
Two circles surface areas is
2*pir^2
2pi10^2
2*100pi
200pi
The cylindrical part is
2pirh
2pi*10*5
100pi
Add 100pi+200pi=300pi
I think the Answer is 76 in^2
Hope this helps