UNOFFICIAL MARKSCHEME Edexcel Maths Calculator paper 09/06/2016

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If I have the correct numbers,This is one way of doing last Q

Area = ( absinC)/2

Sin-1 C = 18x2/(7x8)

= 40.00520088 degrees (DO NOT ROUND)

a^2 = b^2 + c^2 - 2 x b x c=

27.20955764 cm (DO NOT ROUND)

Cos A^-1= (b^2 + c^2 - a^2) / 2 x b x c=

80.37550115=

80.4 degrees

Reply 901

claire_22

Did anyone else get 80.1 for the last one? It's because at some point I rounded it to 2dp and then worked it out with that. I wasn't sure whether to round to 2dp or 1dp (if I rounded to one at that point and then carried on my final answer would have been 80.4). I ended up deciding to go for the 2dp and then getting 80.1 because it was more accurate but I'm not sure cause everyone says 80.4

(edited 7 years ago)

Reply 902

Roquebrune2014

Original post by console.log

Yes. In further maths, you learn that quadratics have two solutions which causes the arc shape and cubics (anything with a power of three) has three solutions and so turns twice rather than once.

Actually no, not necessarily of there is a double root for the cubic

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Reply 903

notarealname2000

For the cubic graph, you only have to draw the line from -2 to 2 right? Or do you draw it for the entire graph?

Reply 904

BTAnonymous

Original post by Resty

In the exact same boat as you. Never forgotten before and I have a feeling this might have just dropped me an A* overall :/

Exactly the same! I was aiming for an A* and I just feel like I've have just missed it by a couple of marks! It's the subject I only care about tbh. Maybe we're just contemplating too much about our mistakes and not what we did correctly.

Reply 905

webb-tom2

I actually feel really confident with this paper, there weren't really any questions that were very challenging, and hopefully I got that a* :biggrin:

I also heard from other people that this was easier than the non-calc paper

Also, for Q24, I think you could simplify 2x/(x+1)(x-1) to just 2x/(x^2)-1, as this would technically be more simple

Reply 906

Dannytruthtalk

Original post by waleed29

Is this foundation paper

No its is higher

Reply 907

samm98

Original post by elliott134

Ah crap, I used a ruler. Oh well, I'll get marks for the table hopefully I did get that right

Wait what? Why can't you use a ruler? I did too :frown:

Reply 908

ArMy07

I'm hoping for an a* you only need ~ 78 - 82

Reply 909

DamnDaniel2

Original post by DrPeter

For this question I only had time to do the first part. How many marks do you think that would be out of 6?

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Reply 910

blondebabe_xo

Isn't that the right answer? Thought it just asked for the probability

Reply 911

emilia12113

can someone post the questions with answers?

Reply 912

webb-tom2

Original post by Dannytruthtalk

What did everyone get for the question where you had to work out x which is joind with the angle 30 degrees

30.1

Reply 913

DrPeter

Original post by DonatelloP

I got 81.5 man💔

If I have the correct numbers,This is one way of doing last Q

Area = ( absinC)/2

Sin-1 C = 18x2/(7x8)= 40.00520088 degrees (DO NOT ROUND)

a^2 = b^2 + c^2 - 2 x b x c

= 27.20955764 cm (DO NOT ROUND)

Cos A^-1= (b^2 + c^2 - a^2) / 2 x b x c

= 80.37550115

= 80.4 degrees

Reply 914

11dwyer_imm

Has anyone got the questions and marks allocated for each ? Please

Reply 915

Roquebrune2014

Original post by samm98

Wait what? Why can't you use a ruler? I did too :frown:

Because it is a cubic graph, the points should be connected with smooth curves, check on desmos or a graphing app

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Reply 916

zeldor711

Original post by Disfuligee

You WILL lose one accuracy mark for rounding too early but you will get the 3sf rounding mark

We'll have to disagree here. I think it could go either way. Like I said, doesn't matter, it won't change my grade.

Reply 917

djandrewful

for question 1b i left my probability as 9/20... how many marks would i have got for that?

Reply 918

Gabika1979

I screwed up math today. I hoped for B, now I am scared I'll even get 'C'!
I've got 46 points on the first paper. How many more points do I need to have 'C' in overall pls.?
Sorry of this was asked before, I'm just gutted and can't think.