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  1. A

    Looking for 4U tutor!

    Preferably rates under $30/hr and around strat-parra region Recommendations anyone?
  2. A

    What rankings are required for 95+ in a rank 25 school?

    estimate of no. of people doing my subjects: English Advanced(150) Physics(110) Chemistry(80) 4U maths (90) What rankings do you think i will need in each subjects to obtain an atar of 95+ ? cheers
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    Water as an ampiprotic substance ?

    So what does water act as in neutralization reactions? how do we know when water acts as an acid or base ? and also, when HCl reacts with Water .. why is it an equilibrium reaction ? i thought it was a strong acid so it should ionize completely ?
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    hey i don't quite understand why (z-1) yields a real solution? how ? :S

    hey i don't quite understand why (z-1) yields a real solution? how ? :S
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    9 Complex/Ellipse Questions help please ASAP!!!

    hey, the answers for 1) only have -2 and 2. theres no zero for some reason :S
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    9 Complex/Ellipse Questions help please ASAP!!!

    Could someone please help me with the following questions PLEASE (preferably fully worked solutions) . MY HALF YEARLIES ARE IN 2 DAYS ); 1) part (i) , (iii) [solved] 2) part (ii) [solved] 3) part (iv) 4) part (ii) 5) both parts 6) 7) 8) all parts 9) all parts
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    Something Common or something unique?

    Well my teacher really hates tutors and everytime i give her an essay to mark, she says most of the stuff is waffle. The ideas that she makes us write are things which are clear and obvious and she fixes it up for us so in the actual HSC exams should i write about deep and uncommon analytical...
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    Alpha Omega Extension 2 Maths?

    Comments?
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    Implicit Differentiation help!

    well i found the equation of the tangent and where it intercepts the x-axis finding T and then i tried finding G by getting the equation of the normal and where it intercepts x-axis but it doesn't match up with the required proof in i)
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    Implicit Differentiation help!

    Tangent at P(3,3/2) on a curve 3y+xy-3x=0 cuts x-axis at T. The ordinate PG meets the X axis at G. Show that: i) OG^2 = 3OT ii) area of <a href="http://www.codecogs.com/eqnedit.php?latex=\Delta" target="_blank"><img src="http://latex.codecogs.com/gif.latex?\Delta" title="\Delta" /></a>PGT =...
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    Heat of combustion/enthalpy help

    i don't get what this sign means?? ∆H is it enthalpy? change in heat? heat capacity? heat of combustion? every time i see this symbol i don't know what it means because i always see them used differently? :S
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    a easy question

    is it possible for an insoluble and insoluble to react? so like there's a possibility of 2 precipitates? :S
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    Quoting

    what if i have 3 important ideas in a quote, am i able to do this? "important1........important 2.......important3" or can i only use ellipses from "important 1....important 2" and bring up important 3 somewher else
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    Quoting

    what if the whole line has relevance , do i have to write EVERYTHING? :(
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    Quoting

    When i'm quoting from "frankenstein" do i have to state the whole quote if it's like 3 lines long? or can i use like "bla bla .....bla bla", if i can, how many words into the quote until i can start using the dots?
  16. A

    a easy question

    SO like NaCl + CaCO3 == > CaCl + NaCO3 is it always going to be the metals switching with the other one? i don't get why it switches in that manner? could someone explain
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    locus question

    find locus of z if (z-i) / (z+ 1) is purely real
  18. A

    URGENT! - NEED A 4U TUTOR FOR MATHS AND/OR PHYSICS AROUND STRATHFIELD AREA

    looking for an experienced tutor for 4u maths and/or physics around strathfield/burwood region or somewhere that is quiet like a private room at a library? oh and i come to you. :) thank you!
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