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# Current Year 12 Thread Mark VI

Discussion for A-Level students and for those choosing their A-Level subjects.

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1. Re: Current Year 12 Thread Mark VI
(Original post by chickenonsteroids)
Prove 7*6 = this

or that the square root of 2 is always irrational... dooooooooooooooooooooooooooo it
I always thought it was 14*3...

Proving irrationality is very easy, ask him something much harder!
2. Re: Current Year 12 Thread Mark VI
Woah AQA has a hefty multiple choice section
3. Re: Current Year 12 Thread Mark VI
(Original post by Groat)
Yeah, having a look at the AQA specification that's definitely B. A very ambiguous question and that's why I am thankful for doing OCR.
And 18?? I'm probably wrong here, but higher prices don't always lead to higher profits, do they. I put C...
4. Re: Current Year 12 Thread Mark VI
(Original post by Llewellyn)
I always thought it was 14*3...

Proving irrationality is very easy, ask him something much harder!
prove 1+1 = 2
5. Re: Current Year 12 Thread Mark VI
Yeah, I put B without any consideration of the others

I thought economic activity meant any monetary exchange. And not all firms want to maximise profit, eg. some want to maximise revenue or pay a dividend to share holders??
According to your syllabus that's what economic activity is.

I'd argue that with a free-market system, firms will only enter the market if there is a normal profit and the incentive to trade.
6. Re: Current Year 12 Thread Mark VI
(Original post by Groat)
Yeah, having a look at the AQA specification that's definitely B. A very ambiguous question and that's why I am thankful for doing OCR.
If assuming my essay writing is pretty good (I usually get 20+ on the extended questions), do you reckon I'd have scored well enough to get an A overall?
Last thing I'm asking, I promise. Thanks for all your help, good to have you visit again!
7. Re: Current Year 12 Thread Mark VI
And 18?? I'm probably wrong here, but higher prices don't always lead to higher profits, do they. I put C...
What other answer would you go for?
8. Re: Current Year 12 Thread Mark VI
(Original post by ArsLongaVitaBrevis)
If assuming my essay writing is pretty good (I usually get 20+ on the extended questions), do you reckon I'd have scored well enough to get an A overall?
Last thing I'm asking, I promise. Thanks for all your help, good to have you visit again!
Most likely!
9. Re: Current Year 12 Thread Mark VI
(Original post by Groat)
According to your syllabus that's what economic activity is.

I'd argue that with a free-market system, firms will only enter the market if there is a normal profit and the incentive to trade.
As I said, couldn't it be acceptable for a firm to enter a market to maximise revenue, not profit. Or to simply invest in more capital...

(Original post by Groat)
What other answer would you go for?
I put C...

Oh, and I personal repped you for all your helpl
10. Re: Current Year 12 Thread Mark VI
(Original post by Llewellyn)
A much easier question (Ooof the banter):

each letter represents a different digit from 0 to 9.
Like the other one, I'll do it in bits.

Spoiler:
Show

From the above, it's obvious that

We need values of H such that the last digit of H squared is less than H, to satisfy this and so the only two possible values of H are 8 or 9.

11. Re: Current Year 12 Thread Mark VI
As I said, couldn't it be acceptable for a firm to enter a market to maximise revenue, not profit. Or to simply invest in more capital...

I put C...

Oh, and I personal repped you for all your helpl
In the short-run that would be a good argument. But in the long-run, they would eventually leave the market.

Try and explain to me why the statement would mean the supply curve slopes upwards. Then have a look at this.
12. Re: Current Year 12 Thread Mark VI
(Original post by chickenonsteroids)
prove 1+1 = 2
we are asked to find a+b=2

Ok, let a = 1 and b = 1

using that, a = b

therefore a^2 = b^2

a^2 - b^2 = 0

(a-b)(a+b) = 0

(a-b)(a+b)/ (a-b) = 0/ (a-b)

(a+b) = 0

but a = 1 and b = 1

so 1+1 = 0

2 = 0

therefore 1 = 0

adding one to both sides gives:

1+1 = 1

Oh dear... I'm afraid I seem to have gone wrong somewhere

Last edited by Llewellyn; 18-05-2012 at 22:23.
13. Re: Current Year 12 Thread Mark VI
(Original post by Maths_Lover)
Like the other one, I'll do it in bits.

Spoiler:
Show

From the above, it's obvious that

We need values of H such that the last digit of H squared is less than H, to satisfy this and so the only two possible values of H are 8 or 9.

Good...
14. Re: Current Year 12 Thread Mark VI
(Original post by Llewellyn)
we are asked to find a+b=2

Ok, let a = 1 and b = 1

using our first expression, a = b

therefore a^2 = b^2

a^2 - b^2 = 0

(a-b)(a+b) = 0

(a-b)(a+b)/ (a-b) = 0/ (a-b)

(a+b) = 0

but a = 1 and b = 1

so 1+1 = 0

2 = 0

therefore 1 = 0

adding one to both sides gives:

1+1 = 1

Oh dear... I'm afraid I seem to have gone wrong somewhere

15. Re: Current Year 12 Thread Mark VI
(Original post by chickenonsteroids)
Is there a problem, sir?

16. Re: Current Year 12 Thread Mark VI
(Original post by Groat)
In the short-run that would be a good argument. But in the long-run, they would eventually leave the market.

Try and explain to me why the statement would mean the supply curve slopes upwards. Then have a look at this.
Fair play - I just thought it was the only correct statement...

I got 3 wrong

I hope my essays were good...

Thanks again - I'm going to go and watch the tennis
17. Re: Current Year 12 Thread Mark VI
(Original post by pink pineapple)
Thanks I guess the exams where you think you did the worse are the ones you did the best in
No problemo and yeah that is generally the usual feeling. Like when I did my Maths GCSE. I thought I royally effed it up by I came out with a B! Just try not to worry about it too much
18. Re: Current Year 12 Thread Mark VI
Fair play - I just thought it was the only correct statement...

I got 3 wrong

I hope my essays were good...

Thanks again - I'm going to go and watch the tennis
I'm going to Wimbledon in summer.
19. Re: Current Year 12 Thread Mark VI
(Original post by chickenonsteroids)
Prove 7*6 = this

or that the square root of 2 is always irrational... dooooooooooooooooooooooooooo it

Puh-lease... that is common maths knowledge.

Assume that is rational, then it can be expressed as a ratio of coprime positive integers, and .

We can therefore write and substitute this in:

This means that and have a common factor of two and so we reach a contradiction.

It follows that

(Original post by Llewellyn)
I always thought it was 14*3...

Proving irrationality is very easy, ask him something much harder!
20. Re: Current Year 12 Thread Mark VI
(Original post by Maths_Lover)
x
Time for the next one ML!

1+1=2 or 344431?

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Last updated: August 13, 2012
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