AQA Maths Linear June 2011 Calculator paper (Specification A)

Reply 40

RebeccaLM

5

Original post by glurblug

I put 30.0 for the sine rule question. Was that a mistake?

Nope I think you're right :smile:

It was 29.95 so to 3 sfs it's 30.0 :biggrin:

Reply 41

zzz.

Original post by glurblug

Or 9 and 8 or 9 and 7. :colone:

Crap...

so it was 4/81?

Reply 42

saba146

Original post by glurblug

Or 9 and 8 or 9 and 7. :colone:

oh no i puut 3/ 81
realising that you cant pick the 8 card out twice :| FML

Reply 43

zzz.

Original post by Mango9963

The probability of getting a 9 was 1/9
then after that the probability of getting a 7 or and 8 was 2/8
So the probability of them together was 1/9 X 2/8
which equals 2/72 Or 1/36
???

but apparantly it didnt specify whether it wasn't being replaced thus, maybe he picked them both at once or something like that. the wording was sooo S*IT.

Reply 44

Bruno

Original post by zzz.

Crap...

so it was 4/81?

I think it was 4/72 because you can't pick the same number out twice but that isn't what I put :frown:

Reply 45

faye94

What did everyone put for the find the radius question I think it was? I got 12, I know a few others that got 12 also, but not sure if its correct. It gave the angle and the area of sector!

Reply 46

glurblug

Original post by faye94

What did everyone put for the find the radius question I think it was? I got 12, I know a few others that got 12 also, but not sure if its correct. It gave the angle and the area of sector!

(12^2 * pi)/6 gives an area of 24pi cm^2. I got 6.77 which I think is right. (6.77^2 * pi) / 6 = 23.9981... cm squared.

Reply 47

faye94

Original post by glurblug

(12^2 * pi)/6 gives an area of 24pi cm^2. I got 6.77 which I think is right. (6.77^2 * pi) / 6 = 23.9981... cm squared.

Ohhh no, thank you.. Hopefully get a method mark or something

Reply 48

Syeda786

what did people get for the very last question! and for the question where you had to drawn a line and shade for -4<x<4 did you shade the uper section or lower?

Reply 49

Member737,514

10

Original post by glurblug

Did anyone else get 1/18 for the probability question? 0.16km^2 for the road works question?

Also, was anyone else annoyed with the pie-chart question? All that time and effort just for 4 marks.

Yes and yes :smile:

I'm pretty certain about those two. I've forgotten if I wrote 0.08 or 0.16 as my answer but ah wel, I'll hope for the best. Did anyone get 1.2 and -3.2 for the quadratics one where you had to draw the line? I drew y=x+2. For the rearranging one I got b=2A/2 -a. I got -1.5 for something too but I've forgotten what. For the pie chart I got 56, 76, 72, and 124 I think, as the angles.

Reply 50

jim1995

Overall, I think paper 2 was difficult, I'm aiming for an A* and found paper 1 easier.
I got 72 for Q1
12 years for compound interest
-s+r for the vector question (part B, they were co-linear)
9.50 for the taxi
0.16 for the area
For the line, I didnt shade anything, just drew the line inbetween the points 4 and -4. (Am i right)
A radius of 12 for that question!
and 30, for the cosine rule, (cant remember what i got for the sin rule)
a = 2A/bh for the trapezium 'I think thats what i put?'

What did you guys get for the value of 'h', when you were given the base of a triangle?

And I spent aaages On the pie chart question, as I didnt actually see the pie chart for the year 11 on the other page and was really confused!!! haha.

Reply 51

Member737,514

10

Original post by faye94

What did everyone put for the find the radius question I think it was? I got 12, I know a few others that got 12 also, but not sure if its correct. It gave the angle and the area of sector!

I got this! 60degrees/360degrees=1/6. 24pi x 6 = total circle area= 144pi. area=pi x r^2 so 144pi/pi = 144. root144 = 12 :smile:

Reply 52

Member737,514

10

Original post by jim1995

Overall, I think paper 2 was difficult, I'm aiming for an A* and found paper 1 easier.
I got 72 for Q1
12 years for compound interest
-s+r for the vector question (part B, they were co-linear)
9.50 for the taxi
0.16 for the area
For the line, I didnt shade anything, just drew the line inbetween the points 4 and -4. (Am i right)
A radius of 12 for that question!
and 30, for the cosine rule, (cant remember what i got for the sin rule)
a = 2A/bh for the trapezium 'I think thats what i put?'

What did you guys get for the value of 'h', when you were given the base of a triangle?

And I spent aaages On the pie chart question, as I didnt actually see the pie chart for the year 11 on the other page and was really confused!!! haha.

I really don't remember shading anything in either, I just drew a line...

Reply 53

Member737,514

10

Original post by Bruno

I think it was 4/72 because you can't pick the same number out twice but that isn't what I put :frown:

But there are 36 different number combinations in total? So there are 2 possible combinations per time as there is only one of each card: 7+9 and 8+9 therefore wouldn't the answer be 2/36 or 1/18

Reply 54

glurblug

Original post by Member737,514

I got this! 60degrees/360degrees=1/6. 24pi x 6 = total circle area= 144pi. area=pi x r^2 so 144pi/pi = 144. root144 = 12 :smile:

Wasn't the area of the sector 24cm^2, not 24pi cm^2?

Reply 55

Member737,514

10

Would I get three marks out of the four available for writing 0.08 for the lane area one? I worked it all out and everything however I'm not sure if I multiplied it by 2 for the two equal lanes... really silly I know :frown:

Reply 56

Member737,514

10

Original post by glurblug

Wasn't the area of the sector 24cm^2, not 24pi cm^2?

I thought the area given was 24picm^2... unless I read it wrong?

Reply 57

Syeda786

wbu the question where u had to work out.... A and B and the H for the trapizium x

Reply 58

glurblug

Original post by Member737,514

I thought the area given was 24picm^2... unless I read it wrong?

Everyone else seems to have gotten 12 so it's probably me who misread it... Can anyone else confirm whether it was 24pi cm^2 or 24cm^2?

Reply 59

Member737,514

10

Original post by Syeda786

wbu the question where u had to work out.... A and B and the H for the trapizium x

There are many answers for this... I got 30= 1/2 x 10 x (2+4)
so a= 2, b=4 and h=10

Then I rearranged it for the following question to: b= 2A/h - a. Did anyone else get this?

AQA Maths Linear June 2011 Calculator paper (Specification A)

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