Answer:
7.54983444
Step-by-step explanation:
hope this helps :)
Answer:
The radius of cylinder is 1.05 cm and
The height of cylinder is 2.11 cm
Step-by-step explanation:
Given as :
The total surface area of cylinder = 21 cm
The curved surface area of cylinder =
of the total surface area
I.e The curved surface area of cylinder =
× 21 = 14 cm
∵ The total surface area of cylinder = 2
r h + 2
r²
Where r is the radius and h is the height of cylinder
Or, 2
r h + 2
r² = 21 cm
Or,
= 21 cm ....a
Again ∵ The curved surface area of cylinder = 2
r h
Where r is the radius and h is the height of cylinder
Or, 2
r h = 14 cm . ...b
so . put the value of a into b
I.e 14 cm +
= 21 cm
Or,
= 21 cm - 14 cm
Or,
= 7
so , r² = 
∴ r² = 
I.e r = 
So, radius =
cm
or, r = 1.05 cm
Put the value of r in eq b
2
r h = 14 cm
Or, 2
×
× h = 14 cm
So, h = 
Or, h = 2.11 cm
Hence The radius of cylinder is 1.05 cm and The height of cylinder is 2.11 cm Answer
Answer:
20ml : 6ml: 15ml
Step-by-step explanation:
1000 milliters is 1 liter, so we would have to convert it to the ml so that it will all be in proportion. To simplify a ratio, divide by a number they can all be divided by. In this case, it was 10 first, so it made it 100: 30: 75. Then, to simplify it more, they can all be divided by 5, which is the lowest it can be since 20: 6: 15 have no numbers in common to be divided by.
Answer:
Yes.
Step-by-step explanation:
For a graph to be a function, it must have precisely one y-value for every x-value.
In this case, this graph is a function because it meets the requirements of having one y-value for every x-value.
Let me know if this helps!