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  1. youngsky

    Didnt put enough effort for maths- advice ??

    There's plenty of opportunities for you to rescue your marks. I'm in year 11 too and i'm pulling it back together from 75% (term 1) to 98% (2 and 3) 2u is mainly a matter of understanding and drilling key concepts, once you've got the idea down, it's rinse and repeat. 3u i think is more...
  2. youngsky

    Normal to a curve

    Hey guys help me work this one out :/ "The equation of the normal to the curve [y = x^3 - 4x] at the point (1,-3) is:" A) y = x + 4 B) y = x - 4 C) y = -x + 2 D) y = -x - 2 include working please (:
  3. youngsky

    [Calculus] Continuous Functions

    Worked it out myself in the end Book's answers were a = -2, b = 8 Also SpiralFlex in your last line of working 4a + 2b = 8, but otherwise it looks great (: Thanks bro
  4. youngsky

    [Calculus] Continuous Functions

    Having trouble with this question. I have the answers but they're not the same as mine :/ "If the continuous function h(x) is defined by h(x) = 1. 4x-6 ; x <= -1 2. ax^2 + bx ; -1 < x< 2 3. x^3 ; x >= 2 Find a and b."
  5. youngsky

    [Change] How many points for a speech?

    yeah i guess so, but is it possible to have 2 strong points in 3 and a half min and get an A ? (instead of 3 or more)
  6. youngsky

    [Change] How many points for a speech?

    I've got a speech on change for preliminary adv. english coming up, and the time limit's 3 and a half minutes. I have an intro + 2 body paragraph points + conclusion atm, which adds up to 650 words. I already cut down the word count from 800 to 650, do you guys think there's enough time...
  7. youngsky

    3D Trigonometry question

    Thanks, understood everything except the last part :uhoh: Pythagoras' theorem worked anyway
  8. youngsky

    3D Trigonometry question

    Question: AB is a vertical tower 30 metres high, C and D are points at the same level as its foot A. The point C is due south of the tower and D is due east of C. If the angles of elevation from C and D to the top of the tower are 16° and 11° respectively, find the bearing of D from the tower...
  9. youngsky

    Need help with Surds men

    Thanks for the help! @Spiral: For question 8 (the second one) when I multiplied by the conjugate I got the answer x = 5, y = 2. I think you forgot to include the other negative root 6 @asianese: Can you explain the equating the rational/irrational parts method? Don't think I've done this before.
  10. youngsky

    Need help with Surds men

    include working out please thanks guys
  11. youngsky

    Help with Polynomials question !

    thanks EDIT: yeah i got it, forgot about the other factor
  12. youngsky

    Help with Polynomials question !

    hey, can anybody solve this one as well? I got up to a + b = 21 but can't get any further :/
  13. youngsky

    Help with Polynomials question !

    thanks! didn't see that, haha
  14. youngsky

    Help with Polynomials question !

    i got the bit up to x=-2, how did you get the 17?
  15. youngsky

    Help with Polynomials question !

    guys if you know how to do this please do it and include the process thanks
  16. youngsky

    How to increase writing speed?

    Maybe it is assumed that you'll freeze up / mindblock / miss the question completely if your memorised essay turns out to be a dud
  17. youngsky

    Do you use your iPhone at the gym?

    Pretty sure there's this accessory thing where you can attach your iPhone onto an armband.
  18. youngsky

    What Phone Do You Use?

  19. youngsky

    URGENT: Study techniques for block exams?

    Thanks Demento ! But I have a question, how does one effectively tackle a content-heavy (but not skills heavy) subject which they have little interest in/motivation for?
  20. youngsky

    My perfect pokemon white team

    Not a terrible team, but its not balanced. Haxorus, Bisharp, and Gigalith look cool, but competitively they are lacking (they are too slow to be competitively viable). OHKO moves are not widely used and generally looked down upon because a) they have like what, 30% accuracy and b) the use of a...
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