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http://www.voanews.com/english/2006-09-21-voa4.cfm http://www.freep.com/apps/pbcs.dll/article?AID=2006609210320 Amazing that on the same day that we discover even more evidence for evolution - that skeleton on its own is almost enough to show evolution to be true, a member of parliament...

3t x 32t + 2 = 1/3 1/3 = 33t + 2 3t + 2 = 1 3t = -3 t = -1 Remember that when you multiply xm by xn you get xm + n not xmn

If your class is good and competitive, then they'll get good external exam marks and bring your assessment mark up - ie you will get a better mark than if they do badly. Effectively the system makes it fair for just about everyone, with perhaps the exception of those at the very top and very...

1. Let a be the probablity an even number appears in an independant trial and b be the probability of an odd number. (a + b)10 = a10 + ... + 10C4 a4b6 + 10C5 a5[/sup[bsup]5...+ b10 10C5 a5b5 = 2*10C4 a4b6 3a = 5b a + b = 1 (as a and b are the only two possibilities) 3 - 3b = 5b b...

Your rank is the only thing that is important at this stage - the actual assessment mark your school gives you is largely irrelevant (which is why they aren't meant to tell you). If you are coming 4th, you will get approximately the fourth best HSC exam mark gained by your school as your...

I go to Manly too - saw Marcus studying on the bus. Have you tried looking through past hsc papers for questions from the prelim course?

Didn't the school give you any? I know my brother was given some (he's in one of the yr10 accelerated classes). Hope Biology went well today and good luck for the rest of your exams.

Keep in mind that he goes to a selective school, and while I'm not sure about economics, a raw mark of about 60% will be about the mid-70s for most subjects. In my physics trial last year i got 66% and got 92 at the end - I probably got about 80-85% in the actual exam. I also put my trial...

Probably equal first. And I'm not sure how your school does it, but at our school they use a system which doesn't just add up the weighted marks, but takes into account the standard deviation. For lower standard deviation, a smaller gap in the marks is worth more. So by adding those marks up...

Yeah, but I did four last year.

I'm pretty sure it isn't going to work. Using an integration calculator it says that there is no formula for the integral. Assuming, that is you are attempting to do (1+x^2)^(1/2) Sin[x] dx

Meh, I was only joking really. I'd like to get a ranking in it though, especially as it doesn't scale particularly well.

Age: 17 Gender: Male Cultural Background: British Religion: none - atheist 1) Describe your understanding of the events of September 11 (a couple of lines will do). Members of a religious extremist group made a political statement through a terrorist attack on a larger scale...

Question 1: Do you believe in a God? Which Religion? No Question 2: Do you believe it's okay for people to be having Sex under the Age of 18? (protectetion) Yes, with protection. Question 3: Do you believe it's okay to have Sex with someone you have no Intention of marrying...

no

d/dx ln[f(x)] = f'(x)/f(x) so d/dx [ln(lnx)] = (1/x)/lnx = 1/(xlnx)

c) Three of a kind - 13 * 4C3 * (48C2 - 4C2 * 12) (removing chance other one is pair) = 54912 = 88/4165 b) 4C2 * 4C2 * 44 * 13C2 = 123 552 (see (a) for my logic) = 198/4165 a) Ways of getting a pair of twos with three other non twos - you can get the pair in 4C2 different ways (ie diamond...

e) Full house is 4C3 (ways of choosing three of the four twos for example) x 13 (possible three fo a kinds) x 4C2 (ways of choosing a pair of threes for exmaple) x 12 (number of possible two of a kinds remaining) = 3744 =6/4165 d) Four of a kind - 13 (different four of a kinds) * 48 (the...

Ok - I'll start with the last one (easier) and work backwards. 52C5 = 2 598 960 possible hands. h) Four of these will be a royal flush (one for each suit) so 1/649 740 g) Ways to get five of a specific suit = 13C5 = 1287, four suits so multiply by four = 33/16 660 f) Get 2, 3, 4...