Mathematics: Post your doubts here!

[My Name]

single unit measurement =0.1 and absolute error =0.05 so 0.3 is 0.35
single unit measurement =1 and absolute error =0.5 so 25 is 24.5
so then 24.5/0.35=70
REMMEBER u need lower bound

 

[My Name]

i hope u understood

 

[R.M2013]

single unit measurement =0.1 and absolute error =0.05 so 0.3 is 0.35
single unit measurement =1 and absolute error =0.5 so 25 is 24.5
so then 24.5/0.35=70
REMMEBER u need lower bound

Absolute error>? Im sorry i dint understand.

 

[ManalMansoor]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s12_qp_42.pdf
For question no. 3 a) (i) and (ii), for atleast, the inequality sign should be '≥', then why in marking scheme it's just '>' ?

 

[Evangeline]

Both are variant 22 , thanks

 

[My Name]

Absolute error>? Im sorry i dint understand.

u get it by dividing the simgle unit eg if its 1 then ae wud be 0.5 so plus or minus 0.5 depending on question ub or lb

 

[My Name]

http://www.cimt.plymouth.ac.uk/projects/mepres/book9/bk9_14.pdf
this might help the first rad the first eg

 

[Rahatara Sadique]

Hey everyone...
Can any body please help me out in Q17 of Oct/Nov 2013 Paper 2 Variant 23? I have difficulty in answering part (a)...checked the marking scheme and the answer is (0,3) (2,3) (2,4). Guys, please help me out as it is urgent. Thanks in advance.
The link for the question paper: http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w13_qp_23.pdf
The link for the marking scheme: http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w13_ms_23.pdf

 

[My Name]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s12_qp_42.pdf
For question no. 3 a) (i) and (ii), for atleast, the inequality sign should be '≥', then why in marking scheme it's just '>' ?

GOOD question y didnt i noticethat!

 

[Abdullah2158]

I meant to say that sometimes cie takes papers earlier in countries like dubai that have the same content which comes in pakistan so its a possibility that someone from another country has the cie exams earlier than Pakistan which can help us know which questions are coming in the exam?

 

[princess sofia]

wts da triangle formula of finding the gradient ?

 

[Ahmed Al Hermi]

hi guys , im in core , can someone tell me if i should study the core part ( from the syllabus ) or both core & supplement part ( from the syllabus )

 

[ahmed butt]

guys can u explain q18 b(ii) and (c) I did not understand
here is link http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w11_qp_21.pdf
plz

I have an exam on may6 plz guys

 

[ManalMansoor]

hi guys , im in core , can someone tell me if i should study the core part ( from the syllabus ) or both core & supplement part ( from the syllabus )

Only the core part for core students.

Core and supplementary BOTH are just for extended.

 

[Ahmed Al Hermi]

Only the core part for core students.

Core and supplementary BOTH are just for extended.

Thank you very much

 

[ManalMansoor]

wts da triangle formula of finding the gradient ?

One formula is Vertical distance/ Horizontal distance.

The other one is y2-y1/x2-x1

 

[ahmed butt]

guys can u explain q18 b(ii) and (c) I did not understand
here is link http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w11_qp_21.pdf
plz
I have an exam on may6 plz guys

 

[princess sofia]

guys can u explain q18 b(ii) and (c) I did not understand
here is link http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w11_qp_21.pdf
plz
I have an exam on may6 plz guys

i ddnt get thx as well , i m gonna ask my teacher tommorow

 

[Mahwish Khalid]

This question is driving me crazy.

 

[MÁťT PŭמҚ]

how to do part b c and d ?