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  1. J

    Binomials Help :)

    Hello I need help with part C of the question. Thanks in advance! ^^
  2. J

    Binomial Theorem

    Hey every1 I need help for questions 2 and 4
  3. J

    Life at a selective high

    Hey, Ruse transfer here. I transferred from a comprehensive school and I also had the same question. The truth is, yes the homework load is far greater than what you would usually get at your old school, but it is definitely manageable. As of sleeping time, I usually sleep between 11-12 and wake...
  4. J

    Help me with this question >_<

    Q: At high temperatures aluminium metal reacts with chlorine gas to form a gaseous compound X. When a student mixed an excess of aluminium with 1L of chlorine gas, she found that after complete reaction of the chlorine there was 333mL of compound X formed ( all volumes measured at same temp &...
  5. J

    Motion

    Hi everyone thanks in advance! A particle moves along a straight line and its acceleration when it is moving at velocity v m/s is numerically equal to a=-(100+v^2) m/s^2. Its initial speed is 10 m/s 1. Find the distance travelled before the particle comes to a rest 2. Find the time...
  6. J

    Parametric Equations

    Hey everyone thnx in advance!! Normal to the parabola x=2at, y=at^2 from points P(2ap,ap^2) and Q(2aq,aq^2) intersect at N. Find the equation of the locus of N if PQ passes through the point (0,3a)
  7. J

    Need some answers!

    Hey everyone! I need some possible answers to this question: Outline the factors which businesses and individuals take into account when deciding what to produce and consume. Any answers would be appreciated thank you ^^
  8. J

    Mathematical Induction

    Hey every 1 ty in advance ^^ Prove that 3^(3n) + 2^(n+2) is divisible by 5 for all integers n greater than or equal to 1
  9. J

    Further Absolute Value

    Hey every1 I have some questions here that I need an easier way to graph with. 1. | x+y | + | y | + | x-y | = 12 Do I really have to consider all 6 cases here!! 2. | x+y | + | x-y | + | x | + | y | = 12 Like seriously... how many cases do you even need to consider here..
  10. J

    Integration

    Thanks! Any ideas for the second question?
  11. J

    Integration

    Hey every 1 there are two questions here. Btw the integral is over the entire thing in the first question. Ty in advance :)
  12. J

    Implicit differentiation

    Hey everyone thanks in advance! :) Question is attached below
  13. J

    Simpson's rule

    Hey every1 thanks in advance :) Use the extended form of Simpson's rule to find an approximation to ∫1/x dx (integrate from 1-2) using: a)4 sub-intervals
  14. J

    Probability

    Hey everyone! Thanks in advance :) The letters of the word PRINTER are arranged in a row. Find the probability that there are at least three letters between N and T. I keep arriving at 4/7 but the answer says 2/7. Can anyone find flaws in my working out ty:) P(at least three letters...
  15. J

    Probability

    Lol the answer is 252 and 126 ^^
  16. J

    Probability

    Hey all thanks in advance :) Consider the digits 9,8,7,6,5,4,3,2,1,0. Find how many five-digit numbers are possible if the digits are to be in: a) descending order b) ascending order Combination doesn't seem to work here... either that or I'm thinking wrong ;p
  17. J

    Graphss

    TyTy ^^
  18. J

    Graphss

    Hi guys a question here. A boy walks 100m in 40 seconds. He then runs back to his starting point in 12 seconds. He rests for 10 seconds. He then walks the 100m in 50 seconds and runs back in 13 seconds. a) Plot a distance-time graph b) Plot a displacement-time graph So I might sound...
  19. J

    Haiii! :)

    Haiii! :)
  20. J

    Ultimate Guide for Selective School Entry (Yrs 8-12)

    Hey here are the info for ruse. I was accepted this year and I will be attending JRHS as a year 11 student. -22 students were accepted as of 2016 (year 10 moving to year 11) -There was a test called the 'Edu-test' which consisted of 6 sections. 4 of which were 40 minutes (Numerical reasoning...
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