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  1. J

    Maths, Physics and Chemistry Tutoring!!!

    I am offering tutoring in the Hills District area (Pennant Hills, Castle Hill, Dural, Cherrybrook, Hornsby, Kellyville, etc). I am offering tutoring for years 11 and 12, for physics, chemistry, and all levels of maths. In 2007 I completed my HSC at Cherrybrook Technology High School. My UAI was...
  2. J

    3U maths tutor wanted

    What area do you live in?
  3. J

    Hills District Tutor (Prelim + HSC) (Maths Gen/2U/3U/4U, Phys, Chem)

    sorry. i don't offer english tuition... good luck with your studies :)
  4. J

    Hills District Tutor (Prelim + HSC) (Maths Gen/2U/3U/4U, Phys, Chem)

    In 2007 I completed my HSC at Cherrybrook Technology High School. My UAI was 99.25 and my marks were as follows: Mathematics Extension 1: 97 Mathematics Extension 2: 94 Physics: 95 Chemistry: 90 I am offering tutoring in the Hills District area (Pennant Hills, Castle Hill, Dural, Cherrybrook...
  5. J

    General thoughts- Extension 1 maths

    damn i thought the parents had to sit together :(
  6. J

    General thoughts- Extension 1 maths

    This is how I did it... P1 = parent 1 P2 = parent 2 _ = kids P1 P2 _ _ _ _ = 4! P2 P1 _ _ _ _ = 4! _ _ _ _ P1 P2 = 4! _ _ _ _ P2 P1 = 4! therefore total ways = 4 * 4! total = 6! therefore 4* 4! / 6!
  7. J

    General thoughts- Extension 1 maths

    I had 4! * 4 / 6! Because the parents could sit at either end (2) and they could switch seats (2) therefore 2*2*4! / 6!
  8. J

    Answers

    but what about the 1-2 mark questions that require half a page to a page of working... surely 1 assumption rather than a proof is acceptable unfortunately i think they will... i looked at this question and was shocked. 3 marks for describing a locus geometrically... so i just threw in the...
  9. J

    Correct from mistake?

    i agree that it's slack... but i just don't think if you get the wrong answer you can ever get full marks for a question.. its slack to the people who actually get the right answer.
  10. J

    Answers

    surely for 2 marks tho.... you could get one mark for recognising they are similar... and 1 mark for the conclusion that the angles are equal... i don't know... i just think it 4 unit they aren't as fussy on the tedious proofs
  11. J

    Correct from mistake?

    surely you can't get full marks if you don't get the right answer. I thought'd you get the first part (part i) wrong and lose 1 mark in part ii Just guessing tho
  12. J

    Correct from mistake?

    It would be the same thing. My school just called it correct from mistake
  13. J

    Need Help for The Probability Question (Still not convincing!!!!)

    omg of course.... argh i hate probability... thanks Mooju.
  14. J

    Answers

    omg... i hope you are right... can someone confirm? if 2 triangles have 2 sides in proportion and are both right angled triangles, are they similar?
  15. J

    Need Help for The Probability Question (Still not convincing!!!!)

    I hate probability. I don't think anyone got the same answer as me so I probably did it wrong. For part A, I got (12 * 11 * 10 * 12 * 11 * 10) / (24 * 23 * 22 * 21 * 20 * 19) = 0.02 (to 2 decimal places) Because there is a 12/24 chance of selecting 1 red, then a 11/23 chance of selecting the...
  16. J

    Correct from mistake?

    Ok.. one example. In one of the volume questions, I accidentally integrated lnx to become xlnx - 1 instead of xlnx - x Following from this I got the right answer (for my method) however not the correct answer by the solutions. This question is out of 4 so how many marks can I expect?
  17. J

    Correct from mistake?

    Hey everyone, Is there such a thing as correct from mistake (c.f.m.) marks in this HSC? Or is this something my school made up because we suck at maths :P If there is such a thing... how does it work? I'm looking at a raw mark beween 89 and 104. The wide range is due to the fact that I can't...
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