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# Arsey's S15 C1 Model Answers (attached to 1st post) watch

1. If I got 46 c1 what would I have to get in c2 and s1 to get B overall ?
2. (Original post by Rkai01)
No there isn't any solutions for S3 anywhere for past papers.
Probably because I've never done them.

I think these solutions have now had more views than total entries. Lol.
3. (Original post by tazza ma razza)
What's good big man,

Could you possibly tell me which modules you'll be providing solutions for this year? I do further maths A2 so just curious as to how far you go in the module chains

I will sit: FP2, S3 and S4 -> just wanted to see if you will provide solutions

Thanks Arsey - saving our bacon after exams hahaha
If I have time. I will do solutions to the C1-C4 M1-M2 S1 FP1 D1-D2 I might do FP2 if I can remember how to do it. I doubt it about S2 as I've forgotten half of it.

Not sure if I will have time to do the R and IAL papers this season.
4. Will I lose marks for leaving 3)a) as 12x^2 +10x^-3? Is it simplified enough?
5. (Original post by particlestudent)
3-sqrt2>p>3+sqrt2
You will definitely lose the final mark.

You will lose the final method mark if you haven't made it clear on your diagram you are choosing the outside region.

If you write, for example, x<1 AND x>3, you now lose the final mark too

It was obv 2 root 2 as well
6. (Original post by sleepyspider)
Will I lose marks for leaving 3)a) as 12x^2 +10x^-3? Is it simplified enough?
Yes
7. Hi arsey if for 10b I let y=rootx and then solved it from there getting y^2=3/2 then y=root3/2 and then subbed in rootx and squared both sides and lastly getting x=3/2 would I get full marks? y was already used in the question as something else but would I penalised for using it as a way to make the algebra nicer? Also does it matter that I forgot the +- in y=root3/2? Finally, for the inequalities one I used x instead of p and didn't write "or" I just put one inequality under the other would I lose marks for that?
8. I think I got 70 or 71 depending on method marks... What do I need in C2 and M1 for an A overall?

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9. (Original post by Arsey)
Yes

yes i'll lose marks or yes it's simplified enough, ffs arsey don't be vague
10. (Original post by Ella_M)
I think I got 70 or 71 depending on method marks... What do I need in C2 and M1 for an A overall?

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The same score or even better but you're definitely on track for a solid bang-tidy A with that kind of a mark ^_^ I think I got aroun 70-72 also
11. (Original post by Arsey)
You will definitely lose the final mark.

You will lose the final method mark if you haven't made it clear on your diagram you are choosing the outside region.

If you write, for example, x<1 AND x>3, you now lose the final mark too

It was obv 2 root 2 as well
Yes it was 2sqrt2, i forgot to write that to you
12. (Original post by target21859)
Thanks Arsey! For question with the inequality in p I got it correct but with x instead of p would I lose a mark for this? Also what do you expect the grade boundary to be for 100 ums?
Hi did u figure out if using x is right because i did the same thing too sigh.
13. If I got 46 in c1 , what would I need in c2 and s1 to get atlesdt a B overall please?😄
14. could i please have the c1 model answers for yesterdays paper
15. Hi,
For the differentiation and integration question if I left it in this form say 10^-3 would I lose marks?

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16. (Original post by vivek.yagnik)
If I got 46 c1 what would I have to get in c2 and s1 to get B overall ?
Given that 46 might be a C/D at let's say around 57 ums. 210-57=153 153/2=77~ so a high B or an A to be safe

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17. (Original post by Arsey)
Yes
For 7B, how many marks would I lose for not getting the final solutions for x? Is it 2 or just the A1 marks?

Thanks

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18. (Original post by iBall)
For 7B, how many marks would I lose for not getting the final solutions for x? Is it 2 or just the A1 marks?

Thanks

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2

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19. I put p > 3 + 2root 2 :/
Will I lose a mark

And on the differentiation question for 3a. The answer was 12x^2 + 10x^-3. I divided by 2 will lose a mark?
20. (Original post by Freddy-Francis)
I put p > 3 + 2root 2 :/
Will I lose a mark

And on the differentiation question for 3a. The answer was 12x^2 + 10x^-3. I divided by 2 will lose a mark?
Yes you will

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