Mr M's Edexcel GCSE Linear 1380 Higher Tier Paper 3 Answers June 2011

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Mr. M - I can't figure out why I'm getting 1.2 (b-a) - that is not parallel to a+b ?

edit: Nvm got it!

3b-2a

2/5 (3b -2a)

6/5b - 4/5a

2a - 4/5a = 6/5a

which leaves 6/5a + 6/5b = 1.2 (a+b)

(edited 12 years ago)

Reply 1581

Mr M

Study Forum Helper

Original post by icantrevise

Mr M, do you think this paper will probably be easier than the first? also, what do you think the grade boundary for a B will be? im praying this goes better than the first ( which went crap) :/

I don't want to guess grade boundaries. Just wait and see.

Reply 1582

icantrevise

I really dont understand further trigonometry, i soooo reckon it will come up to :/

Reply 1583

icantrevise

Original post by Sykez

Anyone I'm doing trigonometry and I'm doing this question

I have to find AC, correct to 3 s.f, I got 9.433427227 - Why is it wrong?

I got the answer to be 6.784384769, is that the answer you were looking for?

I did 8xcos 32 = answer, hope i helped, im scared about this exam!!! :eek:

Reply 1584

gdunne42

Original post by Sykez

Anyone I'm doing trigonometry and I'm doing this question

I have to find AC, correct to 3 s.f, I got 9.433427227 - Why is it wrong?

well for a start it's longer the the hyp which should be the longest side in your traingle

what did you do

Reply 1585

Spellstheend

Original post by Sykez

Anyone I'm doing trigonometry and I'm doing this question

I have to find AC, correct to 3 s.f, I got 9.433427227 - Why is it wrong?

Are you doing the correct calculation?

Its Cos as you have hyp and want the adj

Calc is: 8cos32

Reply 1586

sahjan

Ugh all I can do now is go over a few stuff and pray. :frown:

I need an early night tonight, no point dwelling on the 40-50 marks i got on the first paper. hopefully i'll do well in this one :s-smilie:

Reply 1587

MoniqueBubbles

Dear Mr M,

Are the topics you listed the only topics that will show up in the exam on the 10th on june on the non calculator paper or will there be more?

Much appreciated, xx.

Reply 1588

icantrevise

Original post by Mr M

I don't want to guess grade boundaries. Just wait and see.

okay,well im supposed to be getting an A and from the first paper that defo aint happening...

Reply 1589

Sykez

Original post by Spellstheend

Are you doing the correct calculation?

Its Cos as you have hyp and want the adj

Calc is: 8cos32

Original post by gdunne42

well for a start it's longer the the hyp which should be the longest side in your traingle

what did you do

Original post by icantrevise

I got the answer to be 6.784384769, is that the answer you were looking for?

I did 8xcos 32 = answer, hope i helped, im scared about this exam!!! :eek:

I did 8 divided by cos32?

Shall I bother revising these?
Quadratic Formula
Dimensons
Direct and inverse proprtion
Loci
Circle Theorems.

I want a B/A or shall I go sleep?

Reply 1590

S1L3NTPR3Y

Original post by Sykez

I did 8 divided by cos32?

Shall I bother revising these?
Quadratic Formula
Dimensons
Direct and inverse proprtion
Loci
Circle Theorems.

I want a B/A or shall I go sleep?

All quadratic formula can be done by completing the square

Reply 1591

ZahraI

Hi Mr M I'm pretty confused and would much appreciate if you would be able to help me in regards to what's most likely to come up after mondays exam, because I am extremely worried and found the exam quite difficult anything would be much appreciated thank you :smile:

Reply 1592

gdunne42

Original post by Sykez

I did 8 divided by cos32?

Shall I bother revising these?
Quadratic Formula
Dimensons
Direct and inverse proprtion
Loci
Circle Theorems.

I want a B/A or shall I go sleep?

Cos = A/H

Cos32 = A/8

8Cos32 = A

Quadratic Formula do a quick practice question, watch out for minus signs in the quadratic and the formula becuase that's what you'll stuff up :smile:

Circle Theorems. make a list of them with pictures and the reasons (e.g angle in a semi circle = 90) that you can look at on the way to school tomorrow, don't take the list into the exams room with you :smile:

Then go to bed

(edited 12 years ago)

Reply 1593

Spellstheend

Original post by Sykez

I did 8 divided by cos32?

Shall I bother revising these?
Quadratic Formula
Dimensons
Direct and inverse proprtion
Loci
Circle Theorems.

I want a B/A or shall I go sleep?

Its not 8 divided by cos 32

you have cos32 = adj/hyp
cos32 = x/8
8cos32 = x

you type 8cos32 into your calc and you should get the answer. No dividing for this question!

If you don't know a thing about them/confident enough to answer a question on them then I think it'd be worth brushing over them atleast (only if you know this will help). Otherwise, sleeping is probably a good bet as you want to be able to concentrate in the exam :smile:

If you go over them don't spend too long as sleep is good too!

Reply 1594

Mr M

Study Forum Helper

Original post by Sykez

Anyone I'm doing trigonometry and I'm doing this question

I have to find AC, correct to 3 s.f, I got 9.433427227 - Why is it wrong?

you should be doing 8 x cos 32 not 8 divided by cos 32

Reply 1595

icantrevise

Original post by Sykez

I did 8 divided by cos32?

Shall I bother revising these?
Quadratic Formula
Dimensons
Direct and inverse proprtion
Loci
Circle Theorems.

I want a B/A or shall I go sleep?

I dunno, its up to you, thats also what im aiming for and you do have to times it by 8 im afraid :/ i did sooooooooooooooo crap in the first one, reckon i got a c :frown:

hope it easy, im sure we'll chat about it later. loci is easy, so is direct proportion i wouldnt worry im sure you really know it, get a good nights sleep :P <3