AQA maths core 1, 13th May 2015

yeah, i'll hopefully get the two marks because i got the area of the trapezium (54?) and took away "my" 108/5 so hopefully i've only lost the one mark for the final answer
fingers crossed! i hope examiners take care with their marking and actually look at method marks - i'm relying on them so much to get 68/75!!

this was what it said in the june 2014 mark scheme which led me to believe that i could s scavenge a mark out of that last question - but i've only seen this disclaimer come up in last year's paper and never before - do you think it applies with this question too?

this question seems to apply that you factorised correctly but then got the CVs wrong - i couldn't factorise it in the first place. do you think it could still apply to me?

Messed it up like you. I done 54 - 22 = 32

How many marks do you think we'll drop considering part a) was 5 marks and part b) to find the actual shaded area was 3 marks?

I did the same as you I think! It's annoying because I know exactly how to do inequalities but I'm terrible at factorising. I couldn't factorise it so I used the quadratic formula and got ridiculous numbers. I knew they were wrong but I still carried on with the question in hopes I'd get marks for the graph with the values I got.

To be honest the exam was really easy and it wasn't 'the hardest of all time' ... coming from someone who was resetting I can honestly say that this exam was a breeze with just a less common question (cylinder) included. The grade boundaries should be high 62/63 = 80Ums... Last years paper was easy too but I messed up because I never revised (last year). The exams may seem harder because they no longer spoon feed us by saying "find this ..." instead people have to use their brains to work out what is needed and then how to do it. If you haven't done well there is no harm in resetting in Y13 its a doodle now

The highest mark needed for an A is always 60=80%. After reading a lot of comments, the A boundary could go as low as 55. In my core 4 mock, the A mark was 55 and I got 63 which was "technically" an A*.

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fingers crossed that we'll get one mark!! i can't believe i got the cylinder question correct yet couldn't factorise a simple quadratic!!! i am so ashamed of myself

The two issues I had was not specifically stating that n=7 (on the chord question) and not simplifying h in terms of r, (I still got it right but it wasn't the simplified version) do you think I lost both marks?

you didn't have to state n=7 on the chord question anyway, right? you only had to state it for the surd question, which was also 7

and i don't know if you'd lose any marks for not simplifying - it was only worth 3 marks. i think one would be to find an expression for the surface area, another to put h to one side and the final one perhaps to simplify? but it could also have been to just state something, idk

I did the same as you I think! It's annoying because I know exactly how to do inequalities but I'm terrible at factorising. I couldn't factorise it so I used the quadratic formula and got ridiculous numbers. I knew they were wrong but I still carried on with the question in hopes I'd get marks for the graph with the values I got.

Oh yeah, it must have been the surd question I didn't do it for then.. >
yeah I probably lost a mark for not simplifying.. ah well, only two marks I guess... still so annoying losing marks over such minor things >:O

this might be too late but useful in future. to factorise a large quadratic as such as the one belowthis is what u should

7k 2 - 48k + 80

7x80=560

so now start with 7 and 80
double 7 and half 80
14 and 40
repeat
28 and 20
derefore -28 and -20 are ur factors... then u should do rest easily
all ur doing is halfing and doubling if u still cant find factor then start with 1 and 560 but it wont work in this case, i used this method for todays exam found the factors quickly i think deres also a youtube vid about it