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

1. (Original post by Angelo12231)
Ahhh!

around 63 marks... For 1b, i got 1/3 and 1/10 (stupid mistake lol don't even ask) for the y^2 question I put 2y, and for the last question I got 2/3 instead of 3/2. How about you?

Lol I was hoping that C2 would be the one I wouldn't have to do so well on, but now I guess I do xD

Good luck guys

Same around 62-64 got the p values wrong, the total salary question and in the y question i forgot to do the last step good luck to u too
2. (Original post by TeeEm)
thanks

good luck too.

What are plans for University (course)?
Medicine hopefully, you're probably tired of hearing people say that lol

yourself?
3. (Original post by Angelo12231)
Medicine hopefully, you're probably tired of hearing people say that lol

yourself?
medicine is good. Keep working then.

Me?

I am about 30 years too late for a degree...
4. (Original post by TeeEm)
medicine is good. Keep working then.

Me?

I am about 30 years too late for a degree...
Oh right, I had no idea thanks
5. (Original post by hasan6091)
You are exactly like me i Resat c1 and because of how dull i find it and how bad my mental maths is i dropped a few marks
yeah im pretty guaranteed to retake, even if i just scrape an A my teacher thinks it's worth it because we were expeceted to get 100% on C1 and then C2 next week (I also do further maths and interestingly i found fp1's paper much better as i was way more prepared and focused)
6. (Original post by ALEVEL_STUDENT)
I used the quadratic formula and got 3+-square root 2

Posted from TSR Mobile
Unless you weren't supposed to use 1, -6 and 1 as your a, b and c in the quadratic formulae then I don't understand how I've done it wrong
Attached Images

7. (Original post by sophietulip)
Unless you weren't supposed to use 1, -6 and 1 as your a, b and c in the quadratic formulae then I don't understand how I've done it wrong
root(32) divided by 2 does not equal root(16)
8. (Original post by sophietulip)
Unless you weren't supposed to use 1, -6 and 1 as your a, b and c in the quadratic formulae then I don't understand how I've done it wrong
The a b and c values are correct, but root32 divided by 2 does not = root 16. The way to do it was simplify root32 into 4root2 and then divide that by 2, leaving 2root2 for that particular term.
9. (Original post by Arsey)
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.
Ah ok cool! thanks so much Arsey
10. (Original post by tazza ma razza)
Ah ok cool! thanks so much Arsey
11. (Original post by gdunne42)
root(32) divided by 2 does not equal root(16)
Do you know how many marks i would lose for that? 😭 i did the same mistake
12. (Original post by pauux)
Do you know how many marks i would lose for that? ������ i did the same mistake
Seeing as the question was 4 marks, I'd say 2 dropped, maybe even 3 as using the quadratic formula should've been fairly straightforward
13. (Original post by TeeEm)
Seriously?!?!?! Wow i am honoured -> that has been my nick name since yr 8 (just left yr 13 as of today!)
14. (Original post by tazza ma razza)
Seriously?!?!?! Wow i am honoured -> that has been my nick name since yr 8 (just left yr 13 as of today!)
I would copyright it if I was you.

sounds like a good name for a business
(sounds like a secret message)
15. (Party) Whooo, Looks like I got 100% I'm so happy! Can't wait for C2. 😀
16. (Original post by Arsey)
Because you cannot be both at the same time. It has to be or not and.

Posted from TSR Mobile
Do you know if for the differentiation question, I just messed up one bit however that got me the wrong differentiation. I simplified 12/2x = 6x instead of 6x^-1. And the next 5 marker question required -1 to be substituted into this as well so I got the wrong gradient however all my method was correct. How many marks will this one mistake cost me out of 10?
17. (Original post by Don Pedro K.)
Seriously Arsey if you read this, how did you get the paper so quickly?
I'm Batman
18. (Original post by Angelo12231)
Are you going to solve the C2 paper aswell?
I should think so, I am Batman afterall.
19. (Original post by Arsey)
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.
No R papers this season!
20. (Original post by Arsey)
I should think so, I am Batman afterall.
The fact that I pre-ordered the new arkham knight motivates me to do well in maths... I shall be waiting for you right after I finish the exam

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