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o.0 It does. Pure carbon forms a macromolecular structure with carbon atoms in huge network lattices. For example, carbon as graphite is in 2D "sheets" of carbon atoms bonded to each other (thus graphite is used as a lubricant, as the sheets can easily slice over one another), carbon as diamond...

Heh, thanks :) I'm yet to register though, still gotta find my HSC candidate number :o I still have that piece of paper that was stuck on my table during the SC exams last year...which had the BOS logo and exam centre number and my name, and most importantly, my candidate number :p It's here...

Well, hasn't everyone? :o Ever since you were two and starting to count with your fingers? That's arithmetic, which is a subset of the universal set of "Maths", and being in a subset is a sufficient although not necessary condition for being in the universal set and hence, you were doing maths...

I'm apparently doing Industrial. And I recall my teacher saying something like we'll do the option about one month before term 3 ends...which doesn't really sound good. Hum. :S

Specialist maths? What's that? :p Are you from the ACT or VIC or something?

I thought you already have the same thread in the Year 10 forum? o.0

Just a small mistake: -x3/20 should be differentiated to -3x2/20 :p

... Why? Is it because, it's, erm, MATHS, and everyone gets enough of it at school already? :p

I agree with James747 and -pari- above :) Went to Burwood Girls myself for about half a year in year 8, I think it was alright. Not that I remember that much though :p

So, who else is going to the Discovery Days? Just got this postcard at school yesterday about it. It's organised by University of Wollongong, apparently you just go and experience a day as if you're a real uni student. Looks like you'd have to register before 30 Nov, and your school would give...

That's right ;) See, regardles if the ball is moving upwards or downwards, the gravity it experiences is always AGAINST the positive direction, therefore the acceleration is always negative :)

Unless, of course, the object ends up lower than the starting point :p

I will...for a year at least. But I might not count. *pokes HSC year* :p

Erm, no. The positive direction hasn't changed when the ball is falling down, therefore the acceleration is still negative. Think about it this way: On its way up, the ball is gradually slowed (in the vertical direction) under the effect of gravity, which applies towards the centre of the earth...

Just did. It stayed at 100 o.0

I'm not chucking away my social life yet :D That is, if I have one in the first place to even contemplate chucking away...*cough* :p Anyhow, I can just picture some people looking at your post and thinking, "If you've done more studying though, wouldn't you end up with an even better UAI?" XD

Re: general discussion for hsc 2007 open!! I'm apparently getting mine back next Tuesday. I don't want it. :S

^Actually, when the vertex of a parabola is not at the origin, you could always rotate and translate it until the vertex is :p In this case the value of a as Riviet has found is correct. He just made a mistake when he subbed in x=7/4 into the formula. It should have been (7/4)2=10y, therefore...

modezero, I remember you telling me once that it's impossible to get a scaled aggregate of 100 for any single subject. Why is that though?

*blink* No one ever said that you'd *have to* do maths o.0 But yes, I do maths. :p