I'm not sure but if you got the correct lengths of the 3 sides then I would have thought so...

And I substituted y=0 into the equation of the circle and the tangent, then did 3 lots of the distance formula and a simple half base-height to get 40 units square haha

(edited 8 years ago)

Reply 443

Ubayd53667

Tbh sorry no dont remember any.. Reckon high boundaries as it wasnt too hard

Reply 444

username1533709

Original post by Madhutty

It definitely is. If you scroll back there are many people who have proved why popular answers such as 50 and 20root5 are wrong.

Posted from TSR Mobile

Ah damn.I hope I pick at least 1 marl from that question.I need to get a high A in this C1 exam :s-smilie:

Reply 445

Madhutty

Original post by gabby07

It was only 4 marks.

I would say M1, 2 for the points, since this was the main brief of the question.
M3 for base and height
A1 for answer

Oh, ok sorry. Yeah; you're quite right then.

Reply 446

gabby07

Original post by chloe-jessica

From this, expand the right to get:
xlog7 = xlog2 + log2

Collect like terms:
xlog7 - xlog2 = log2

Factorise:
x (log7 - log2) = log 2

Use log rule with subtracting -> dividing:
x (log(7/2)) = log 2

Divide:
x = log2 / log(7/2)

Hope that helped :smile:

Thank you! :smile:

Reply 447

Madhutty

Original post by Kadak

Posted from TSR Mobile

Ah damn.I hope I pick at least 1 marl from that question.I need to get a high A in this C1 exam :s-smilie:

Are you resitting then?

Also if those are the only marks you dropped then 69/72 is almost definitely 90UMS at least.

Reply 448

Charlieukharris

Original post by Whittick

It was 100% 40 square units.

Yeah it was I got it wrong though 😒

Reply 449

gabby07

Original post by Madhutty

xlog7 = (x + 1)log2
(log7)/(log2) = (x + 1)/x
(log7)/(log2) = 1 + 1/x
(log7)/(log2) - 1 = 1/x
x = 1/((log7)/log2) - 1)

Probably wrong... It's been a long year since I did any C2.
I'm pretty sure there's a (Not MEI) OCR C2 post somewhere on TSR for you

Thanks

Reply 450

gabby07

Original post by Madhutty

Oh, ok sorry. Yeah; you're quite right then.

Haha! No fault of yours!! I find it incredible how people remember everything about the exam paper :tongue:

Reply 451

username1533709

Original post by Madhutty

Are you resitting then?

Also if those are the only marks you dropped then 69/72 is almost definitely 90UMS at least.

Posted from TSR Mobile

Nah,I think I got wrong answer for k and forgot to mention stretch for the graph.
Apart from that,I pretty sure I got full marks on everything else.

Reply 452

sykik

Original post by Madhutty

Oh, ok sorry. Yeah; you're quite right then.

it was actually 3 marks

Reply 453

lucybrooks17

for question 8iii i worked it out 2 ways and got two different answers - one of which was correct. What will they do about that will they give me any marks at all?

Reply 454

username1533709

Original post by Kadak

Posted from TSR Mobile

Nah,I think I got wrong answer for k and forgot to mention stretch for the graph.
Apart from that,I pretty sure I got full marks on everything else.

Posted from TSR Mobile

Reply 455

Rr_rolo

I wrote 40 but no units squared would i lose marks

Reply 456

Madhutty

Original post by Kadak

Posted from TSR Mobile

Nah,I think I got wrong answer for k and forgot to mention stretch for the graph.
Apart from that,I pretty sure I got full marks on everything else.

Did you get the scale factor (1/3) ? If so then that's probably going to be a mid-low A

Reply 457

Charlieukharris

Is there an unofficial markschem

Reply 458

Madhutty

Original post by lucybrooks17

for question 8iii i worked it out 2 ways and got two different answers - one of which was correct. What will they do about that will they give me any marks at all?

What was 8iii again? And what answers did you put

Reply 459

gabby07

Original post by lucybrooks17

for question 8iii i worked it out 2 ways and got two different answers - one of which was correct. What will they do about that will they give me any marks at all?

Perhaps. Usually if you give two answers either a 'list' principle will apply where they will award the first answer that naturally appears 1st in your working. If you put in full working for both methods, the examiner could take that two ways. You may benefit from ALL of the marks except the A mark(s) (for your final answer) or if the examiner isn't so lenient, he may dock you marks for 'hedging your bets' by equating two solutions. :smile: