Mathematics: Post your doubts here!

[♣♠ Magnanimous ♣♠]

okie !! surely !! .. den i ll be exploring this site !! .. thnk u soo much !! ... u really helpd me .. !!

no probs okay... if you have bio i can surely help you.

 

[Sohel d assassin]

NO bro !! m a commerce student i dnt hav bio !! .. well thnkz !~!]

 

[♣♠ Magnanimous ♣♠]

NO bro !! m a commerce student i dnt hav bio !! .. well thnkz !~!]

okay.

 

[My Name]

which paper? paper-2 or paper-1 or paper-6 if it will be paper-1 or paper-6 you paper will go awesome i guarantee because this 2 papers are so esay that i cannot describe it.

paper 6!

 

[My Name]

no probs okay... if you have bio i can surely help you.

U SURE CAN!!!

 

[ManalMansoor]

so first of all can u tell me what answer did u get and how did u calculate it?

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s03_qp_2.pdf
In question 18, they are asking for the scale in from 1:n
Where AB is given 100m.

What I thought,
Since 1m = 100 cm
then 100m = 10,000 cm.
Which is not correct, unfortunately.

 

[Rahatara Sadique]

Hey guys....need some help.

May/June 2011 Paper 2 Variant 23
Q22b)ii) The answer that I am getting is 208 m/s^2. But the actual answer is 0.208m/s^2 HOW???
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s11_qp_23.pdf (Question Paper)
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s11_ms_23.pdf (Marking Scheme)

Oct/Nov 2011 Paper 2 Variant 21
Q18c HOW TO DO?
Question paper: http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w11_qp_21.pdf
Marking Scheme: http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w11_ms_21.pdf

Oct/Nov 2011 Paper 2 Variant 22
Q13b, Q18b HOW DO YOU DO EM?
Question Paper: http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w11_qp_22.pdf
Marking Scheme: http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w11_ms_22.pdf

HELP NEEDED....URGENT!!

 

[Rahatara Sadique]

HELP PLEASE...

May/June 2012 Paper 2 Variant 21
Q21c
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s12_qp_21.pdf
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s12_ms_23.pdf

May/June 2012 Paper 2 Variant 22
Q17c
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s12_qp_22.pdf
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s12_ms_22.pdf

May/June 2012 Paper 2 Variant 23
(THIS TYPE OF QUESTION COMES FREQUENTLY)
Q21b
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s12_qp_23.pdf
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s12_ms_23.pdf

Oct/Nov 2012 Paper 2 Variant 21
Q10, Q13, Q15
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w12_qp_21.pdf
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w12_ms_21.pdf

Oct/Nov 2012 Paper 2 Variant 22
Q20a
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w12_qp_22.pdf
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w12_ms_22.pdf

Oct/Nov 2012 Paper 2 Variant 23
Q22, Q24b
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w12_qp_23.pdf
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w12_ms_23.pdf

URGENT!!

 

[Rahatara Sadique]

okay now first of follow this rule DMAS. so do the multiplication first so it becomes =(-x y) + (3 2)
now put in the coordinates one by one and try it.
if still u dont understand lemme asap

Sorry but I didn't understand. :S

 

[Rahatara Sadique]

How do we draw the line of best fit in corelation questions
and wen they say to draw histogram we always find frequency density

If you have many points close together, the line passes roughly through them...but it is not always necessary that the line passes through all the points...it could pass through a maximum number of points or roughly between them.
If the class width is different for the intervals, you should find out frequency density for histograms.

 

[Rahatara Sadique]

A bus leaves a port every 15 minutes, starting at 9:00. the last bus leaves at 17:30. how many times does a bus leave the port during one day?

The time difference between 17 30 and 09 00 is 8hrs 30mins. Convert this to minutes so you will get 510 minutes (8.5 x 60). 510/15=34. But the last part says that another bus leaves at 17 30. So 34+1 that gives you 35 times. Let me know if the answer is right (check marking scheme for reference)

 

[Ali Aladdin]

Please Help me in question 9 in may june 2013 p42 i need an explanation
please help

 

[mushiii]

The time difference between 17 30 and 09 00 is 8hrs 30mins. Convert this to minutes so you will get 510 minutes (8.5 x 60). 510/15=34. But the last part says that another bus leaves at 17 30. So 34+1 that gives you 35 times. Let me know if the answer is right (check marking scheme for reference)

it's correct thanks alot, I'll be asking you more question if you don't mind

 

[***amd***]

can you send a screenshot ?

sorry bro. i'll try it tomorrow In Shaa Allah right now i am way too sleepy to do anything.

 

[Mahwish Khalid]

yes i started my As levels in february this year and gave my igcse in oct nov last year
ALhamdulillah i got A* (96) for maths. and all i did was past pprs

THAT'S AWESOME MASHA'ALLAH! :O I really hope that I get an A* as well. :/ Btw, are you a private student?

 

[Mahwish Khalid]

Are the May/June papers harder or the Oct/Nov? What do you guys think?

 

[♣♠ Magnanimous ♣♠]

U SURE CAN!!!

that paper is so easy.. if you have got the stly of it you will surely score high marks.

 

[ahmadumar]

Im sick of solving past papers !! .. and i hardly get answers correct .. i don't know what to do !!.. on 6th may means only 6 days left i have my exam .. and now my situation is awful !!. please suggest me anything to score good marks !! please !! ...

hey bro dont give up i also didnt get any marks in the start. u got 6 days. do 10 pprs per day
just keep solving. after a ppr mark it urself. any problems discuss with some1. if possible u can post it here
just dont worry pray to Allah and Insha Allah u'll get A*

 

[ahmadumar]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s03_qp_2.pdf
In question 18, they are asking for the scale in from 1:n
Where AB is given 100m.

What I thought,
Since 1m = 100 cm
then 100m = 10,000 cm.
Which is not correct, unfortunately.

first of all, it says the diagram is drawn to scale.
then, 100 metres is the original length, the actual length of AB.
but it never said 1 on the diagram represents 100 metres
the length of AB in the diagram represents 100 metres in actual.
so u have to measure AB with a scale and u will get 10 cm.
this means 10 cm on this diagram represents 100 metres in actual
now 100 metres = 10000 cm

10:10000
so it should be in the form "1:n"
so therefore, simplify 10:10000 and u get this:
1:1000
did u understand or not?

 

[ahmadumar]

THAT'S AWESOME MASHA'ALLAH! :O I really hope that I get an A* as well. :/ Btw, are you a private student?

Alhamdulillah hehe Insha Allah u will get ^_^ nopes, a regular candidate