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Edexcel GCSE Mathematics A Higher Paper 2016 Unofficial Markscheme

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Original post by 11ahf
You had to divide 3.5 by 5, leaving you with 0.7x10^9 = 7x10^8.


aw cool
Reply 281
Original post by Jackflinders
Q22 was 78 not 69


It was 69.
Original post by darceyg
does anyone know what the question was for (I think) it was question 8. People have said the answer was 60? It's the question that was above the letter one.


yeah i think it was 60, it was 1/5 of 300
Original post by lillyholmes
the last question said your answer must be in numbers in cm?


It must be in exact form which just means surds. It doesn't need to be an integer value.
What does everyone think they'll get?
How many marks was the x=6 and x=2 question??
The fractions i put 2 12/15

And 1 6/30


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The question on what does the vector tell us about s, does anyone know how marks that was?
Original post by Adnan1996
The question on what does the vector tell us about s, does anyone know how marks that was?



it was 2 marks
Original post by darceyg
does anyone know what the question was for (I think) it was question 8. People have said the answer was 60? It's the question that was above the letter one.


It was the question about how many L's would he expect to get in 300 spins (probability question)

Spoiler

Original post by nelsbxo
1) volume of a prism: 750cm3
Q??) probability: 0.95, 0.05, 0.7, 0.3
Q2) questionnaire, question doesn't specify time, ambiguous and also the options aren't specific enough "often" "sometimes" hard to interpret
Q??) 36%- rent increase
Q??) circle theorem: angle 69 degrees
Q??) not enough tiles, 7.5 litres, needs 10
Q??) inverse proportion: 100, 25, 4
Q??) circle in a square- 100-25 pie
Q??)11 female teachers
Q??) box plot distribution: comment on mean, range, interquartile range with numerical comparisons
Q??) 90 teachers
Q??) estimate L, in sample of 300, round 80 to 100, 16 to 20, so estimate of 60
Q??) powers/indices, add the powers when multiplying two numbers, take away powers when dividing, and if in a bracket, multiply those powers
Q??) vectors, a) a+b, b) 3b-a, c) 3/4 a + 3/4b (can't remember whether + or -)
Q??) factorise n2 -7n = n(7-n)

How did you get 69 for the circle thereom
it was 69
The correct answer for the last one is (3-root 6) /12

Would i lose a mark if i put 1/4 - (root 6)/12
Reply 294
Can someone put the marks next to question/ answers please
Original post by dennissingh99
Hi guys, for the last question about the triangles, I think i forgot to half the area for one of the triangles. Foolish me, so now i got the same answer as everyone else except at the bottom I have 6 instead of 12. Can I still get around 2 marks for that?

I got the same- I think we might get method marks but that's it😭
Original post by 11ahf
Don't worry, you'll probably still get 2 marks out of the 3. :P And it's much better than most people managed to get in that question. :smile:


Yea hopefully thanks :smile:
Original post by Adnan1996
I read -1.6 and 4.6 😪. Do I get 0 or is there range?


Theres definitely a range
Original post by sciolyboy123
The correct answer for the last one is (3-root 6) /12

Would i lose a mark if i put 1/4 - (root 6)/12


Probably yes as the answer isn't in it's final form.
Reply 299
Original post by Jackflinders
How did you get 69 for the circle thereom


Drew a line from one of the corners to the radius to create an isosceles triangle including the origin and the angle of 48. Therefore the other angle was 48 (isosceles triangle), so the angle at the origin was 84 (180-96).

This meant that the angle at the other point (hard to explain without a diagram) was 42 because the angle at the circumference is half that at the origin.

As this was a big large isosceles triangle (already marked), the other two angles were 180-42/2 = 69.

Then alternate segment theorem meant the angle that needed to be found = 69.

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