You are Here: Home >< Maths

# C2 unofficial answers

Announcements Posted on
TSR's new app is coming! Sign up here to try it first >> 17-10-2016
1. (Original post by richpanda)
i got -2.19.

anyone get 9b+5 for a in terms of b?
wasn't it b in terms of a?
2. For the binomial my friend and I got B = -1008?
3. Is this the new arsey?
4. It was B in terms of A
(Original post by richpanda)
i got -2.19.

anyone get 9b+5 for a in terms of b?
5. (Original post by Mizzeeboy)
wasn't it b in terms of a?
yes it was, i got b = (a-5)/9
6. (Original post by eftio.gea)
Guys wasn't part a of Q9 = 1/3pi(x^2)????

because the sector area is 1/2r^2(theta)
which is 1/2(x^2)(2/3pi)

= 2/6pi(x^2)
= 1/3pi(x^2)
??
I got this!
7. (Original post by richpanda)
i got -2.19.

anyone get 9b+5 for a in terms of b?
it asked for b in terms of a
8. (Original post by eftio.gea)
Guys wasn't part a of Q9 = 1/3pi(x^2)????

because the sector area is 1/2r^2(theta)
which is 1/2(x^2)(2/3pi)

= 2/6pi(x^2)
= 1/3pi(x^2)
??
Correct!
9. (Original post by Mizzeeboy)
wasn't it b in terms of a?
but then a would be 1/3b - something- a lot more awkward number. I can't even remember now.
10. (Original post by richpanda)
i got -2.19.

anyone get 9b+5 for a in terms of b?
Yes I think it was -2.19. I had log7/log2 - 5, which gives -2.19. For a I think it was 9b+5 divided by something, I think 2?
11. (Original post by Nizza98)
it was definitely +5 as it was y-13= -3/5(x-10)
so
5y-13=-3x+10
This is wrong, you haven't multiplied the 13 by 5 when you took it across
12. 5y-3x-95=0
13. (Original post by samgoulden99)
It was B in terms of A
(Original post by eftio.gea)
yes it was, i got b = (a-5)/9
oops. Out of 4 marks how many do you think I could get for getting the correct answer for the wrong subject?
14. For the logs question i got -2.08 so will i get full marks or not?
15. (Original post by not_lucas1)
For the logs question i got -2.08 so will i get full marks or not?
no as that is the wrong answer
16. (Original post by Nizza98)
it was definitely +5 as it was y-13= -3/5(x-10)
so
5y-13=-3x+10
you forgot to multiply the -13 by 5 to give -65
17. (Original post by not_lucas1)
This is wrong, you haven't multiplied the 13 by 5 when you took it across
Oh **** yeah nah so it was 5y-65, my bad.. i did that in the exam though, but its still 3x + 5y -95
18. (Original post by Nizza98)
Oh **** yeah nah so it was 5y-65, my bad.. i did that in the exam though, but its still 3x + 5y -95
yeh good i got that
19. (Original post by Nizza98)
it was definitely +5 as it was y-13= -3/5(x-10)
so
5y-13=-3x+10
That's just such a fail, I can't even begin.... xD
20. (Original post by Marlos)
That's just such a fail, I can't even begin.... xD
look above your post... you failed not him

## Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank
2. this can't be left blank
3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
your full birthday is required
1. Oops, you need to agree to our Ts&Cs to register

Updated: June 5, 2016
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Today on TSR

### How does exam reform affect you?

From GCSE to A level, it's all changing

Poll
Useful resources

## Make your revision easier

Can you help? Study help unanswered threadsStudy Help rules and posting guidelinesLaTex guide for writing equations on TSR

## Groups associated with this forum:

View associated groups
Study resources

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.