H1 Maths 2012 Answers

• wee_ws

  11 Nov 12, 15:37

  Hi,

  H1 Maths 2012 Answers, for your reference:
  
  Q1 x = (1/2)ln(2/3)
  
  Q2 HF = 30
  
  Q3(i) x-coordinates are -k/2 and k/2, (ii) k^3/6 sq units
  
  Q4(i)(a) 6/(3x + 2), (b) -8/(2x + 1)^2, (ii) 2 + ln(2)
  
  Q5(ii) -1.0395, (iii) m = -1.0395, c = 2.1377, (iv) 1.51 units
  
  Q7(i) 1/9
  
  Q8(i) 0.3, (ii) 0.53, (iii) 3/47
  
  Q9(ii) r = -0.984, (iii) m = -19.21, c = 183.12, (iv)(a) y = 106 000, (iv)(b) y = 10 200
  
  Q10(i) 0.283, (ii) 0.0726, (iii) 0.630, (iv) 0.690
  
  Q11(i) x-bar = 299.4 (exactly), s^2 = 12.2, (ii) p-value = 0.0427, reject the null hypothesis, (iii) least k = 299.56
  
  Q12(i) 0.0569, (ii) 0.274, (iii) 0.262

    Thanks.

  Cheers,
  Wen Shih