Mathematics: Post your doubts here!

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well use the principles of indices to sort it out
5^y=k
=so 5^(y+1)
=(5^y)*(5^1) (1 is obvious but just to clear some stuff)
=k*5
=5k

Thanks alot !

 

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thankyou veryyyyyyy much this was so helpful. and i hope you'll be there if i need more help... can u plzz tell me that what is the rotational symmetry of the letter O and why is the answer in Q 2a not O and I?

Ur welcome...... O has infinite lines of symmetry since they need the letter with EXACTLY 2 lines of symmetry ( not more than 2 or less than 2 )..so I has exactly 2 lines of symmetry.

 

[Sariya Khan]

Consult your book.. check on the web ASAP!

I am not able to solve&understand locus in any of pastpaper questions.please send me some videos or explanation to understand.
please do answer fast my exam is on 29-10-2014 early in the morning.
URGENT REQUEST PLEASE!

 

[Faiza Anwar]

how to solve this question plzz??

 

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how to solve this question plzz??View attachment 48404

 

[mikasa ackerman]

well it be enought to study 2014-2010 in pp for paper 2 math?
i havent started ;-; cuz i was sick ;-;

 

[Faiza Anwar]

thankyou very much it was really helpful...

 

[Faiza Anwar]

well it be enought to study 2014-2010 in pp for paper 2 math?
i havent started ;-; cuz i was sick ;-;

yup...

 

[Faiza Anwar]

That would probably get you a right answer wrong working mark. The correct method is to calculate the volume scale factor (k^3) and use that to find the area scale factor (k^2)

k^3 = 1458/3456
k^3 = 27/64
k = 3/4
k^2 = 9/16

Hence the surface area of the smaller shape is
A = 1024*9/16 = 576cm^2

how did u do this? can u plzz explain again.

 

[Sariya Khan]

So, how did your paper go guys ?
Faiza Anwar

 

[Faiza Anwar]

somebody help in Question19 plzz

 

[fire wall]

So, how did your paper go guys ?
Faiza Anwar

well,mines was not that good as expected

 

[Glennn]

well,mines was not that good as expected

Mine didn't went well either
It's out of my expectation

 

[Sariya Khan]

well,mines was not that good as expected

Mine didn't went well either
It's out of my expectation

Was not that the toughest paper 22 ?
I think so because paper 22 in the previous years are much easier!

 

[Glennn]

Was not that the toughest paper 22 ?
I think so because paper 22 in the previous years are much easier!

Yea I took paper 22, it wasn't really difficult but the questions were unexpected

 

[Sariya Khan]

Yea I took paper 22, it wasn't really difficult but the questions were unexpected

Yayy!
The most unique paper.

 

[Phoenix Blood]

Yayy!
The most unique paper.

Most unique in the sense?

 

[fire wall]

Mine didn't went well either
It's out of my expectation

what are u now looking forward in paper-3

 

[Sariya Khan]

Most unique in the sense?

In sense of the question that came

 

[sj0007]

did anyone give the variant 1? coz that was really easy!