Original post by JJ Downey
look at how to find the volume of a cylinder
Original post by JJ Downey
so it would be
9*pi then * 22
but then what?
9*pi then * 22
but then what?
Then take away the cylinder represented by the hole
Original post by TenOfThem
Then take away the cylinder represented by the hole
hello?
Original post by JJ Downey
hello?
hello!
Original post by JJ Downey
hello?
??????????/
Original post by JJ Downey
can you help?
Is this from mymaths
It is an odd question - clearly the answer is just 4
The height is the same so the radius must also be the same
Original post by JJ Downey
no apparently these are the answers? how are these worked out?
Well
That is a different question which explains why the answer is different
Can you show how you got your answers so people can see where you are going wrong
Original post by TenOfThem
Well
That is a different question which explains why the answer is different
Can you show how you got your answers so people can see where you are going wrong
That is a different question which explains why the answer is different
Can you show how you got your answers so people can see where you are going wrong
well? any luck?
Original post by JJ Downey
OK so i did 20 Litres equals 20000cm cubed. then i did the 12.5/2 to get the radius, i squared the answer and then divided 2000 by it. i got 162.97..... then converted it into meters
as for the last one i received help on here
as for the last one i received help on here
You have forgotten that it is half a cylinder
So the full cylinder would hold 40000
That is why your answer is half the correct answer
Original post by TenOfThem
You have forgotten that it is half a cylinder
So the full cylinder would hold 40000
That is why your answer is half the correct answer
So the full cylinder would hold 40000
That is why your answer is half the correct answer
so what now?
Quick Reply
Related discussions
- Could someone explain how to do these questions?
- chemistry
- A level Chemistry
- reacting gas question
- Calculating cardiac output from table
- Enthalpy change question help !!
- A level Physics question about volumen
- Gcse maths help
- [Chemistry] Gases Question
- A levwl biology unit 3 lung disease data
- Mathswatch Bounds / Measures of Accuracy
- chemistry question
- Chemistry AQA GCSE
- Question on standard solutions
- Math Help
- Please help
- chem questions help!
- grade 9 maths question
- Dilution question
- OCR A-Level Chemistry- Amounts of Substance- The Ideal Gas Equation
Latest
Trending
Last reply 1 day ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
Trending
Last reply 1 day ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
