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  1. MATHmaster

    Best quality school equipment?

    Where do you find quality exercise books that don't rip easily, get scratched etc? Also what pens do you use which don't run out of ink easily and are reliable? I'm not on a budget so I will buy stuff that must take me into the Summer. Thanks :D
  2. MATHmaster

    Studying both MX2 and EX2

    Well done on your marks/ranks, they are really good! Um I for one am only doing MX2 but not EX2. Some of my friends do both and said it is very manageable if a few hours are spent on each every night. Just curious, what school do you go to? Its seems like you come from a very top selective...
  3. MATHmaster

    Roll Call: Class of 2013

    Hey I'm MATHmaster (not literally of course) My subjects are: MX1 MX2 English Advanced Physics Modern History Studies of Religion I Geography (dropping soon) My goal to get above an ATAR of 98.5 and enter Actuarial Studies/Applied Finance or otherwise Civil Engineering at UNSW Good luck...
  4. MATHmaster

    What's everyone doing in the holidays?

    Yeah um just wondering... Relax or study? I was thinking of completing the Space module for Physics, doing a few extension topics in math, reading my English Adv texts and finishing notes for the core section of Modern History. This way I hope to work on past papers in my spare time and ace my...
  5. MATHmaster

    Probablity Question Help

    how is P(2 gold coins) = 5/8 x 5/8, isn't it 5/8 x 4/7? and how is P(1 gold and 1 silver) = 5/8 x 3/8, isn't it 5/8 x 3/7 + 3/8 x 5/7? Thanks for the final part though!! How
  6. MATHmaster

    Probablity Question Help

    Can anyone answer this??? pls
  7. MATHmaster

    Probablity Question Help

    I'm having trouble with the 'at least one part'. This is what I got: (5/8)(4/7)(47/56) = 0.3 I got 47/56 by making 1 - 3/8 x 3/7 = 47/56 the probability of her selecting at least one gold coin, but I don't know how to apply it in the question correctly :S
  8. MATHmaster

    Probablity Question Help

    Yep soz, typo
  9. MATHmaster

    Probablity Question Help

    Q10. a) There are 5 gold coins and 3 silver coins in a purse. Christine selects 2 of these coins at random. Find the probability that: i. She selects 2 gold coins. ii. She selects 1 gold coins and 1 silver coin. iii. She selects 2 gold coins if it is known that she selected at least I gold...
  10. MATHmaster

    BOS Trials

    2U? :(
  11. MATHmaster

    Dropping a subject!

    I am definitely dropping Geography in Yr 12 because I hate it. But I am going to have some problems if I want to drop it ASAP... In my school, we are not allowed to drop a subject until Term 1 next year. However, I cannot bear doing one whole term of Geography. Also, I am deciding to do...
  12. MATHmaster

    Options for the HSC

    I suddenly got good in maths. Was ranked in the low 20s in Year 9 to 2nd in Year 10 and I'm still second now... OP follow your dreams! LOL xD
  13. MATHmaster

    CSSA trial results

    I'm in Yr 11: 2U Math: 93/100 SOR I: 45/50 Pretty proud :)
  14. MATHmaster

    2012 CSSA Maths 2U

    Seriously that is an awesome mark, wish I got that! CONGRATS
  15. MATHmaster

    2012 CSSA Maths 2U

    Thanks! I'm sure you did really well, too!
  16. MATHmaster

    2012 CSSA Maths 2U

    Btw, I have one more 35% school trial to go so I must concentrate to come 1st! The difference between 1st and 2nd (me) is about 0.3% so one mark will change the rank
  17. MATHmaster

    2012 CSSA Maths 2U

    2nd This is in a top 80 school where we are ranked 50th in math according to band sixes (which doesn't really make much difference imo)
  18. MATHmaster

    2012 CSSA Maths 2U

    I came 2nd in the cohort. 94 was the highest mark in our school!
  19. MATHmaster

    2012 CSSA Maths 2U

    GOT MY RESULTS BACK: 93/100 I guess it was what I was expecting considering I screwed up the probability question? And a couple of silly mistakes compensated for extra lost marks... Oh well
  20. MATHmaster

    2012 CSSA Maths 2U

    Who knows the answer to the question about the tide - increasing or decreasing after 8 seconds?
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