Year 12s: what will be the first way you research your future options? >>

Edexcel S2 - 27th June 2016 AM

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Reply 1020

hasanlucy

Original post by fefssdf

you should still get a B ...

Thanks for your help, I hope I do!

Reply 1021

Ramil Ahmadov

Original post by Diraculous

Correct

Cheers, hopefully going to get 100 then

Reply 1022

dnpnstn

Original post by Diraculous

I'm fairly sure it was 3 marks.

I thought it was 4, but I hope you're right! I got that one wrong because my brain broke on me

Reply 1023

fefssdf

Original post by mangoli

Went alright but was nothing like the past papers. Got stuck on finding k for 20 minutes and decided to move on, how did you guys do it? I got k = 1/(a+21) and couldnt hew another equation in a from it

for K you had to use the fact that F(3) = 1, and that F(2)= 0 so then you ended up with two equations in terms of a,b, and K, and then you used these to isolate out K on its own and then just solved for it ? so K was 1/9

(edited 7 years ago)

Reply 1024

username1763791

Original post by Diraculous

I'm fairly sure it was 3 marks.

That was definitely 4 marks, I'm 100% sure

Reply 1025

fefssdf

Original post by Foutre en L'air

That was definitely 4 marks, I'm 100% sure

agree it was 4 marks

Reply 1026

Diraculous

Original post by Foutre en L'air

That was definitely 4 marks, I'm 100% sure

Alright, believe that. Hopefully that won't lose me an A*. I would be mad at myself.

Reply 1027

fefssdf

Original post by Jamo :)

It was 0.2n, so you had to rearrange this equation into a quadratic by multiplying up then squaring: 7/4 = (55.5-0.2n)/(squareroot(0.16n))

oh god hopefully i wrote down 0.2 and not 0.02 but can't remember argh

Reply 1028

mupsman2312

Original post by RGBlinkFrayXx

No worries. What do you think 66/75 would be in terms of UMS?

Maybe around 86? In the 2014R paper, it would actually have been like 91, but then only a high B on last year's paper...

Reply 1029

gabeaumont

Has anyone made a markscheme yet????

Reply 1030

Datta10

Would 69/70 be about90 ums?

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Reply 1031

mupsman2312

On the "find k" question, would solving F(2) = 0 to find that a = -12 probably be sufficient for 2/4 marks? (I also said that F(3) = 1, but then I completely messed-up the substitution!)