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lol i am the only one that is certain that wants to go to uni so you can imagine how enthusiastic our class is also, last lesson, we (and the teacher) spent 15 minutes argueing with a student in our class that the north pole is NOT located in australia. (he was totally being serious). he is...

heh you're lucky dude we used to go on the computers once in a while. now its all theory the thing is, we can't be trusted with the computers cause there are a few bad ppl in our class

lol, like us, we do jack shit in class our teacher is away a lot last lesson we found hand cuffs (without keys) and 'busted' this guy in our class outside in the hallway and all that stuff like law and order. teachers were staring at us all pissed off. we were like "FUCK! RUN!" and left the...

isnt it 50% contribution from assessment mark so say u get 95% for school assessments, you will need to get atleast 85 to average up to 90% and with 95% school assessment, and a 80 HSC, you will get a final score of 87.5% (the average) which is band 5 sorry if im way off.. could osmeone...

77.5 is good man alot of ppl in my class got <50% lol.. what rank was that score anyway?? dont be upset with that score! business studies is hard!! :D

thanks for ur speedy response i thought it would be in terms of exam conditions :eek: like it would be a much better incidication than an overall assessment mark thanks!

Hey all I'm wondering if you could give me a UAI prediction because I don't think SAM is being realistic, since I go to a school that is ranked past 200. My half yearly scores/overall assessment average (considering weightings, incl. half yearly)/rank English Standard - 86%/94%/1st...

thanks joe_m_2000

thanx for ur replies :) ok well i could finally ask the teacher today and she said we could use templates :p

finally got my mark back today 93% 2nd was 67% 3rd was 62% :p

finally got my mark back today 95% 2nd was 92% 3rd was 90% :p

sounds like me

i got 85% for my test it was a piss hard exam in my opinion, so i am not pissed off at this result 7 mark question on multiple dilutions of a titration. it was extremely difficult. it was initially 83% but i am going to get an extra mark for a stupid multiple choice incorrect answer :eek:

umm here's some few tips i think would be useful when calculating k, use all the values, don't round it off, caues its exponential and it could lead in a completely different answer when the question has the thing decreasining it's to the power -kt, when increasining, to the power of kt...

q 15 (ex 6.3) .'. .4 = e^-k(5) k = ln.4/-5 = 0.183258146 .'. .1 = e^-0.183258146t t = ln.1/-0.1832581 =12.5 = 12.5 minutes

q 14 (ex 6.3) a) we must differentiate p(t0) = e^-kt to see if it equals what they say since in the initial eqn, it has with respect to t, we know to do that for the equation .'. dP(t)/dt = -k(P9t0)e^-kt = -k(P(t) (just put the eqn from above back in) b) .'. .9 = e^k(4) k =...

sure thing which exercise?? EDIT: ex 6.3 yeh?

.75 = e^k(t) sub in k value u get .75 = e^-0.0004332169879t .'. ln0.75/-0.0004332169879 = t t = 664.05 = 664 years

.5 = e^-(1600k) k = 0.0004332169879 .'. % = e^(500*k) =0.805 =80.5% still there that is, 19.5% decayed

yep sure will, its just that she's away for half this week :eek: anyway, i was like asking in general.. i thought that stuff was super hard, and not expected by yr 12 students !! i feel dumb at the moment :O