Mathematics: Post your doubts here!

[ahmadumar]

part c help please

 

[ahmadumar]

Whice Paper is this?

its this paper i think
http://papers.xtremepapers.com/CIE/...(Calculator Version) (4024)/4024_s09_qp_1.pdf

 

[ahmadumar]

View attachment 48642


part b explanation needed

need to divide what the angle BOA is by 2

 

[Faiza Anwar]

thank you very much. May you get good grades InshaAllah!! best of luck

 

[Ushnaaa]

Can anyone provide me with topical pastpapers?

 

[Shada Mohammed]

May june 2008 paper2 question 17 and I would like to know how to approach such questions
Is there any good way to improve my perfomance while dealing graphs related questions any rules that would help plus what is a histogram? I mean a histogram at times is represented by height or by the bar area I am completely confused help is needed please

 

[Shada Mohammed]

Is x-12/-5 the same to 12-x/5

 

[ahmadumar]

Is x-12/-5 the same to 12-x/5

Yeps. U take -1 common from both numerator and denominator and cancel the -1.
btw how was P4?

 

[ahmadumar]

May june 2008 paper2 question 17 and I would like to know how to approach such questions
Is there any good way to improve my perfomance while dealing graphs related questions any rules that would help plus what is a histogram? I mean a histogram at times is represented by height or by the bar area I am completely confused help is needed please

 

[ahmadumar]

May june 2008 paper2 question 17 and I would like to know how to approach such questions
Is there any good way to improve my perfomance while dealing graphs related questions any rules that would help plus what is a histogram? I mean a histogram at times is represented by height or by the bar area I am completely confused help is needed please

what do u mean by dealing with graphs? is it drawing them or reading them off?
Histogram has bars. But bars with no space. And bar graph also has bars but with space. In Histograms on y-axis its frequency density and on x-axis the class intervals. And yea the area in each bar gives u the total frequency. Thus, histogram is represented by f.d on y-axis and class intervals on x-axis.
and f.d = frequency / class width.
so if u r given a graph u'll be given f.d and class width and will be told to find, maybe lets say, mean etc. So u'll need to use this formula to find frequency first.
u can post any specific question on histogram to make ur question more clear.

 

[Shada Mohammed]

what do u mean by dealing with graphs? is it drawing them or reading them off?
Histogram has bars. But bars with no space. And bar graph also has bars but with space. In Histograms on y-axis its frequency density and on x-axis the class intervals. And yea the area in each bar gives u the total frequency. Thus, histogram is represented by f.d on y-axis and class intervals on x-axis.
and f.d = frequency / class width.
so if u r given a graph u'll be given f.d and class width and will be told to find, maybe lets say, mean etc. So u'll need to use this formula to find frequency first.
u can post any specific question on histogram to make ur question more clear.

So what about cumulative frequency I don't how do we find it out in May June 2010 v 42 q7 part b and what is the difference between frequency and cumulative frequency are they the same or what?

 

[Faiza Anwar]

So what about cumulative frequency I don't how do we find it out in May June 2010 v 42 q7 part b and what is the difference between frequency and cumulative frequency are they the same or what?

in cumulative frequency we add the previous frequency . the first frequency is written as it is in this question its 12, the next is 12+15=27, the next 27+23=50 and so on... the last one will always be the total number of frequencies, in this question it is 200....

 

[Moses Danso]

hi, i have problems with sequences, bearings, statistics and probability. please help me with some resources and solved questions (with full steps), if you can ..Thank you

 

[Shada Mohammed]

Paper 42 o/n 2012 q 4 part b (v) explanation needed

 

[ahmadumar]

Paper 42 o/n 2012 q 4 part b (v) explanation needed

have u done radians? have u done angle = s/r ?

 

[Shada Mohammed]

have u done radians? have u done angle = s/r ?

Sorry I didn't get you what do you mean? I just can't work out how to find the length of the arc
could post the solution so I could understand

 

[ahmadumar]

Sorry I didn't get you what do you mean? I just can't work out how to find the length of the arc
could post the solution so I could understand

lol leave it what i said

 

[ahmadumar]

Sorry I didn't get you what do you mean? I just can't work out how to find the length of the arc
could post the solution so I could understand

hope u understand. if not ask anything.

 

[Ushnaaa]

I want to know if anybody here is studying from Mathematics Syllabus D Book 1,2,3,4.

 

[ahmadumar]

I want to know if anybody here is studying from Mathematics Syllabus D Book 1,2,3,4.

i think i studied from those books in GCSE. is it the oxford ones?