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Consider poodles are represented by 'O'http://papers.gceguide.com/A Levels/Mathematics (9709)/9709_s13_qp_63.pdf
Question 7(iii) please.
Rizwan Javed
Thanks!Consider poodles are represented by 'O'
and spaniels and retrievers both are represent by *
the way they can be arranged such that no poodle is together is:
O * O * O * O * O
Now arrange the spaniels and retrievers in their places represent by *. This will be done in 4! ways.
Now from the 5 possible places of poodles, you are to select 3 since there are 3 poodles. So select these places 5C3. Now 3 poodles can be arranged in their selected places in 3! ways.
So the total no. of possible arrangement are:
4! * 5C3 * 3! = 1440 Ans.
Though the question doesnot state this, but since you are using NORMAL APPROXIMATION to solve a question which involves a binomial distrbution you'll have to do continuity correction.Thanks!
Same paper qtn 4 part (ii)
The MS says that we have to use continuity correction here but theres no mention of the word approximation in the question. Why is that?
But we do not use continuity correction in ever normal distribution question. So why so in this case?Though the question doesnot state this, but since you are using NORMAL APPROXIMATION to solve a question which involves a binomial distrbution you'll have to do continuity correction.
We don't use continuity correction only when it is stated in the question that a certain variable follows a normal distribution. Otherwise, if YOU are using normal distribution to make an approximation for any other distribution like binomial , you have to use continuity correction.But we do not use continuity correction in ever normal distribution question. So why so in this case?
View attachment 60259 View attachment 60258
help in part ii
i didnt take log function so how they expect me to use it
also i cant understand the answer help me i always leave this q blank
In part (ii) you are required to prove the inequality.
I think that the component of weight parallel to the slope for a distance of 500 metres is the gain in Potential Energy . Because if you notice, ''mgsinθ'' times ''500'' is 375000 J. And the gain in Potential energy is "mg" times "500sinθ" is also 375000 J. Although I may not be sure...Hey guys.
Can someone please help me with this question
View attachment 60208
I got the answer for the first part
View attachment 60209
But the problem is i don't get why did they not calculate mg sinθ as resistive force in the second part although they used it in the first part of the question. The engine would also do work against this component of weight so why dont we use it in our calculation.
View attachment 60210
please help....
No other way I know.View attachment 60259 View attachment 60258
help in part ii
i didnt take log function so how they expect me to use it
also i cant understand the answer help me i always leave this q blank
i want clear explanation and an alternative to log function if possible in part II
can u forward a link for it pleaseNo other way I know.
Its the only way.
Learn log rules. Its easy as anything could be
can u forward a link for it please
video for log function which will then help in this q
Chapter 2can u forward a link for it please
video for log function which will then help in this q
The other integration one please andOne of the integration questions...
Whole 5 and 6 question.
Also please do both integration ones from the previous ones i uploaded. Thanks for the others, will look into it in a while then will let u know
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