AQA Level 2 Certificate in Further Mathematics UNOFFICIAL MARKSCHEME Paper 2

So is the answer Sometimes True?

What was the 12, x/y.
How did you get that, did you also get x = 12y and do 12y/y = 12?

For that question I got root 12/ 2 * root 3. Anyone know if this is right?

For that question I got root 12/ 2 * root 3. Anyone know if this is right?

I doubt it tbh. Sorry

Yeah I got 12.00 for it. Did you?

Haha, that's literally exactly the same as me but I probably got 0 on the 3D question and I kept rubbing out my graph so it might have been a bit messy

Well done

How did you get that though?

Because it was x^2/y^2 = 12 therefore X/y = root 12

does anyone have an idea of what marks would be for an A*?

Fantastic. This paper has cost me the A^

Fantastic. This paper has cost me the A^

You forgot the question where it told you to draw the graph of the stationary and point of inflection [3].
So, you've got 1 question or something where you've wrote an extra mark lol.

I have the graph answer with the stationary points I think, so there is still two marks left I think....

Maybe I missed the question

Are you sure?
I dont remember the question lol that's the problem.

Sorry, didn't see it lol.
I doubt you missed the question - maybe you just can't remember it lol.

I think the question was something like:

A cylinder has radius x cm and height y cm

A hemisphere has radius 6y cm

Their volumes are equal. Work out x/y

The cylinder volume is pi*x^2*y

The hemisphere volume is (2/3)*pi*(6y)^3 = 144*pi*y^3

They are equal so pi*x^2*y = 144*pi*y^3

Cancelling out pi gives x^2*y = 144y^3

x and y are lengths so cannot be zero so x^2 = 144y^2

This is probably unnecessary(x^2 - 144y^2 = 0 (x+12y)(x-12y) = 0 so x = 12y or x = -12y but x and y are lengths and if x = -12y, one of them would be negative which is impossible, so)

x = 12y

x/y = 12y/y = 12