2009 Rv Em P2 Solution

2009 RVHS Prelim Maths (4016) Paper 2 Answer Key

Q1(a) 2, (b)

2( y  2) , (c) x = 3 or x = 2 2y  3

Q2(a)(i) 402 m, (ii) 34.0, (iii) 219.0, (iv) 73600 m2, (b) 12.3 Q3(a) Plan B as more interest is earned, (b) S$468, (c) 101.2% of original value. Q4(a) 101, (b) 151, (c) (2n 1)2 + n(n  1), (d) 1051, (e)(i) 8(n  1), (ii) 10(n  1)

Q5(a)

800 800  , (b)   3  (2  x ) , (d) 11.4 or 46.7 (e) 67 litres x  x 

Q6(a) opposite angles of cyclic quad, (b)(i) 65, (ii) 50, (iii) 100, (c) 70 Q7(a)(ii) 16.7 cm, (iii) 21.6 cm2, (b)(ii) 45.2 Q8(a) 2040 cm3, (b)(i) 19.0 cm, (ii)12.6 cm, (iii) 726 cm2 Q9(a) p = 4.17, (c) 4, (d) 0.75, (e)(i) x = 0.75 or x = 5.2, (ii) x = 0.6 or x = 3.4, (f) y values tends towards positive infinity Q10(a)(i)(a) 35 marks, (b) 42 marks, (c) 23 marks (ii) m = 24, n = 43 (iii)(a) mean = 33.9, (b) standard deviation = 11.6 (b) (i)

7 , 15

(ii)

3 5