Mathematics: Post your doubts here!

[Mai(M4!)]

Plzz temme how to do question 17 part b, i dnt get the concept of it.
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s10_qp_22.pdf

4*45=180
180/360=0.5
ratio of angle =ratio of circumference
so half the circle would be painted
circumference /2 + circumference of a
2xbyx12/2 + 2xbyx8=87.96

 

[Mai(M4!)]

should i simplify a probability

 

[Bloodserpent]

should i simplify a probability

More than fractions? No.

 

[Mai(M4!)]

pictograms

More than fractions? No.

thanks

 

[Bloodserpent]

How
Do
You
Do?
Questiones 14, Part b of paper http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s11_qp_22.pdf ?

Arigatou.

Edit: Nevermind, managed to solve it.

Edit2: How is Question 18 Part b of http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s11_qp_22.pdf done?

 

[MÁťT PŭמҚ]

can anyone tell me how to do this question? mayjune 2012 p21 question 9 (a) & (b)

 

[MÁťT PŭמҚ]

1
mayjune 2012 p2 question 14 and 15

 

[DeadlYxDemon]

Oh God! Aahhh.!!. 2 & a half hours left for the maths exam!!! >_<

 

[Evangeline]

View attachment 41370
can anyone tell me how to do this question? mayjune 2012 p21 question 9 (a) & (b)

Part a) you'll place your protractor on point B and put a mark above 67 degrees , then draw a line through the mark and the line AD , C is where this line intersects the line AD .
Part b) Open the compass to any degree and then put it on point B and draw an arc , then put your compass on point A WITH THE SAME DEGREE you used earlier and draw an arc , draw a line from the intersection of the arcs above to the intersection below . Hope this helped you

 

[Lavinge]

do you think constructing a histogram will be in paper 2?

 

[MÁťT PŭמҚ]

Part a) you'll place your protractor on point B and put a mark above 67 degrees , then draw a line through the mark and the line AD , C is where this line intersects the line AD .
Part b) Open the compass to any degree and then put it on point B and draw an arc , then put your compass on point A WITH THE SAME DEGREE you used earlier and draw an arc , draw a line from the intersection of the arcs above to the intersection below . Hope this helped you

thank u soo much am still a bit confuse in part a :/

 

[Zubair Junjunia]

Here are some math notes which may be useful:
http://zstudynotes.wordpress.com/2014/04/11/cie-igcse-mathematics-extended-0580-notes/

 

[DeadlYxDemon]

do you think constructing a histogram will be in paper 2?

No cuz I've done it ... I was too nervous before the start of the exam then when I saw the paper it was like I knew everything

 

[Bloodserpent]

No cuz I've done it ... I was too nervous before the start of the exam then when I saw the paper it was like I knew everything

I did it too, at first I was like "Ez Pz" then I was like "wait wtf?"..
I am not sure if I did the Pyramid right..

 

[DeadlYxDemon]

I did it too, at first I was like "Ez Pz" then I was like "wait wtf?"..
I am not sure if I did the Pyramid right..

I think I did it right! In part a "Pythgoras theorem" had tobe used I.e (6^2=PM^2+4^2)

 

[DonatKap]

I made stupid mistakes First on the Lower and Upper bound. I found the L.B and U.P of 102 instead of finding the L.B and U.B of 8.5 then multiply it by it by 12.
I also made another on the similarity part. What I did was the normal similarity...there was no cube root or anything squared. And finally the last question when I wrote a "C" instead of a dollar. That's like 7 marks lost (90%). Do you think an 85% in paper 4 can give an A* ? Not getting an A* in Maths would be a disaster for

 

[a_wiserME!!]

I made stupid mistakes First on the Lower and Upper bound. I found the L.B and U.P of 102 instead of finding the L.B and U.B of 8.5 then multiply it by it by 12.
I also made another on the similarity part. What I did was the normal similarity...there was no cube root or anything squared. And finally the last question when I wrote a "C" instead of a dollar. That's like 7 marks lost (90%). Do you think an 85% in paper 4 can give an A* ? Not getting an A* in Maths would be a disaster for

wers d dollar in it?? n anyway it was "C"... i confirmed it...b happy

 

[DonatKap]

That's just 1 mark. Have there ever been any a threshold that requires a 90% for A*?

 

[Mahmood Magdy]

wers d dollar in it?? n anyway it was "C"... i confirmed it...b happy

Actually it was an E but with curved ends ! They said { f, g, ......} is ..... of P
Therefore you will have to say that they are ELEMENTS of the set P .

 

[Villiger Boy]

What would be the curve for "a" out of 70 ?