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Edexcel A2 C4 Mathematics June 2015 - Official Thread

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Reply 3560

a.a.k

Original post by sansasstark

I got that at first, but P=4 not P=4000! it told you P was in thousands

How many marks do uthink it would cost me

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Reply 3561

Kevin De Bruyne

Original post by Raj_B961

got 57 raw marks in c4, not sure what grade that is tho

Depends on the boundaries, at most a low A, otherwise a mid-leaning towards high-B, at a guess.

Reply 3562

username1162972

Original post by xKay

i think question 2 part a is wrong

Yes minor one.

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Reply 3563

helenaaasty

Hey guys

For Q7 c), do you think that I will still get at least 1 out of the 3 marks for trying to work out t by using P = 4000 even though I ended up with a maths error?

and for 8b), I integrated 3^2x as 3^2x divided by ln3 instead of 3^2x divided by 2ln3... Given that my subsequent working is correct, how many marks out of 6 would I get?

Thanks :smile:

Reply 3564

sunsri101

Will 70/75 on C3 and 69/75 on C4 be an A*?

Reply 3565

Wisienqa

How hard did people find it?
Is there a vote on how hard people found it or something going on?

Reply 3566

the north

i used degree instead of radian to find the year thing how much marks would i lose?

Reply 3567

oliviakellers

Original post by strugglingstdnt

did no one think that in q2b there was actually 4 co-ordinates? because there are two coordinates for each x value that you find out. When you sub it back into the equation to find y, because its quadratic you get 2 different answers. therefore for x coordinate 24/5 there are two ys and for -24/5 there are also two ys

?????