***JC 2014 Maths Paper Two - Mon. June 9th 2014 - all levels***

S_Hick12

Easier than the mocks, i did a lot better than i expected. I'm pretty sure I got at least a C but i would really love to get a B.

Gerrymandering reborn

S_Hick12 wrote: »

Easier than the mocks, i did a lot better than i expected. I'm pretty sure I got at least a C but i would really love to get a B.

Well I got 69 in my mocks but that also included stuff we didn't cover

coolerboy

Gerrymandering reborn wrote: »

I got 5.4

I got 5.3 then rounded up

ECM1234

coolerboy wrote: »

I got 5.3 then rounded up

I think I got the same :P

coolerboy

ECM1234 wrote: »

I think I got the same :P

I got 41° the reduced angle by 20%

Gerrymandering reborn

coolerboy wrote: »

I got 41° the reduced angle by 20%

Im 99% sure that you had to increase it

ECM1234

coolerboy wrote: »

I got 41° the reduced angle by 20%

Was it not increase ? Or did you have phase 3 paper?

coolerboy

ECM1234 wrote: »

Was it not increase ? Or did you have phase 3 paper?

No its was phrase 2.it must increased but I cant remember.

Liordi

I'm almost sure the swing was 7.4.
Tan X = 5/4
X = Tan -1 (5/4)
X = 51.34

51.34 * 1.2 = 61.6

Tan 61.6 = x/4
4 Tan 61.6 = x
x = 7.39
x = 7.4

Idk if that's right or wrong but how I did it.

ECM1234

coolerboy wrote: »

No its was phrase 2.it must increased but I cant remember.

I'd say you did increase it, but can't remember the question :P

Scrublord420

Hello fellow scrubs yeah i thought paper 2 was well easier than paper one can i ask what did anyone get for question 8 i got the first part but i got stuck on the others

coolerboy

Liordi wrote: »

I'm almost sure the swing was 7.4.
Tan X = 5/4
X = Tan -1 (5/4)
X = 51.34

51.34 * 1.2 = 61.6

Tan 61.6 = x/4
4 Tan 61.6 = x
x = 7.39
x = 7.4

Idk if that's right or wrong but how I did it.

Why do you have to multiply by 1.2 ?

Liordi

coolerboy wrote: »

Why do you have to multiply by 1.2 ?

You're increasing it by 20%

Gerrymandering reborn

coolerboy wrote: »

Why do you have to multiply by 1.2 ?

HE INCREASED it by 20%

Liordi

Scrublord420 wrote: »

Hello fellow scrubs yeah i thought paper 2 was well easier than paper one can i ask what did anyone get for question 8 i got the first part but i got stuck on the others

Got the slope to be 1/3
1, -2 wasn't on the line.
y - y1 = m ( x - x1)
As they're parallel m is the same

y - (-2) = 1/3 (x - 1) (3)
3y + 6 = x - 1
x - 3y - 7 = 0

Liordi

coolerboy wrote: »

Was it the swing question

The coordinate geometry question.

DanielChester

One of the questions on co-geometry asked if the line was perpendicular to another, I said no. It was towards the end, did anyone get that?

ECM1234

Liordi wrote: »

I'm almost sure the swing was 7.4.
Tan X = 5/4
X = Tan -1 (5/4)
X = 51.34

51.34 * 1.2 = 61.6

Tan 61.6 = x/4
4 Tan 61.6 = x
x = 7.39
x = 7.4

Idk if that's right or wrong but how I did it.

Where did the 4 come from? Was that you're distance from A-B ?

yaEHya

Ah I even got that easy question wrong.how was 5 the hypothenis?

Liordi

yaEHya wrote: »

Ah I even got that easy question wrong.how was 5 the hypothenis?

Tan is opp/adj

Liordi

ECM1234 wrote: »

Where did the 4 come from? Was that you're distance from A-B ?

Yeah.

ECM1234

DanielChester wrote: »

One of the questions on co-geometry asked if the line was perpendicular to another, I said no. It was towards the end, did anyone get that?

Same here, because the slope are not equal to -1 !

Gerrymandering reborn

Liordi wrote: »

Got the slope to be 1/3
1, -2 wasn't on the line.
y - y1 = m ( x - x1)
As they're parallel m is the same

y - (-2) = 1/3 (x - 1) (3)
3y + 6 = x - 1
x - 3y - 7 = 0

YEs i got that

Liordi

DanielChester wrote: »

One of the questions on co-geometry asked if the line was perpendicular to another, I said no. It was towards the end, did anyone get that?

Yup, they weren't perpendicular.

yaEHya

Liordi wrote: »

Tan is opp/adj

I thought it was adjacent over hypothesis ffs

ECM1234

Gerrymandering reborn wrote: »

YEs i got that

I got that, but thought it was wrong, so I did the question again, can I still get the marks?

Liordi

ECM1234 wrote: »

I got that, but thought it was wrong, so I did the question again, can I still get the marks?

If you didn't scribble it out, you might get low/high partial.
This is why people are adamant to avoid using tippex.

yaEHya

Gerrymandering reborn wrote: »

YEs i got that

At least I got that

ECM1234

Liordi wrote: »

If you didn't scribble it out, you might get low/high partial.
This is why people are adamant to avoid using tippex.

I didn't use tip ex, hopefully I can still get the marks

yaEHya

I was thinking sohtahcoa in my head not sohcahtoa such a ****ing rehab haha

yomtea98

Liordi wrote: »

Yup, they weren't perpendicular.

It was.

Scrublord420

DanielChester wrote: »

One of the questions on co-geometry asked if the line was perpendicular to another, I said no. It was towards the end, did anyone get that?

The lines had the same slope so they were perpendicular i think

coolerboy

For question 1 what was the probability I thinkvi got 9/64 but I think its wrong

Liordi

yomtea98 wrote: »

It was.

Which question are you talking about?
I'm referencing when the slopes were 5/4 and - 5/4.

ECM1234

yomtea98 wrote: »

It was.

No, it wasn't if it was , their slopes would be equal to -1

Liordi

coolerboy wrote: »

For question 1 what was the probability I thinkvi got 9/64 but I think its wrong

3/8, which is the same as 9/64.
So, yeah. ^^

yomtea98

ECM1234 wrote: »

No, it wasn't if it was , their slopes would be equal to -1

And they were. 5 over 4 and -5 over 4 multiplied equal -1

coolerboy

Liordi wrote: »

3/8, which is the same as 9/64.
So, yeah. ^^

Its not 3 doesnt go into 64 evenly

Gerrymandering reborn

Liordi wrote: »

3/8, which is the same as 9/64.
So, yeah. ^^

Are you HIGH? 3/8 is 24/64

Liordi

yomtea98 wrote: »

And they were. 5 over 4 and -5 over 4 multiplied equal -1

1.25 * - 1.25 =/= -1.

ECM1234

yomtea98 wrote: »

And they were. 5 over 4 and -5 over 4 multiplied equal -1

Correct me if I'm wrong, but that would make them 1.25 and -1.25 ?

Scrublord420

Liordi wrote: »

3/8, which is the same as 9/64.
So, yeah. ^^

No they're not the same

Liordi

Scrublord420 wrote: »

No they're not the same

Oops..but I got 3/8 afaik.
Like I said; I'll remember better when the papers are online.

yomtea98

ECM1234 wrote: »

Correct me if I'm wrong, but that would make them 1.25 and -1.25 ?

Ah *

ECM1234

What did you all get for the length of AB and AC on the swings?

Gerrymandering reborn

I said the lines were perpendicular. Am I wrong?

Liordi

ECM1234 wrote: »

What did you all get for the length of AB and AC on the swings?

Both were root 41 which is 6.4.

Gerrymandering reborn

ECM1234 wrote: »

What did you all get for the length of AB and AC on the swings?

6.4 MEters

ECM1234

Got 6.4 too,

yaEHya

Where they not all 1/8 because there was 8 options?