Tkss Prelim 2009 Em P2 Answers

TK 2009 Maths Prelim P2 Answers Key 1(a) 1(b) 2(a)

y  8x 2 and y  8x 2 a  14 , b  2 Sn S3 1  2  2  4  3  3  6  6  9 S4 1  2  2  4  3  3  6  6  9  4  4  8  8  12  12  16

2(b) 2(c) 3(a)

3(b)(i)

3(b)(ii)

4(a) 4(b) 4(c) 5(a)(i) 5(a)(ii) 5(a)(iii) 5(a)(iv) 5(b) 6(a) 6(b) 6(c) 6(d) 6(e)

6 2  36 10 2  100

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1 1  2 Sn   nn  1 /  n 2 n  1 2 4    k  20 10    10  9   RG represents the total number of football matches each club had played respectively.  3   1 0    20     16   10    RP represents the total points scored by each club respectively. 2  m 3 0.419 m2 1 r  m, Height  0.221 m 3 11.7 m 23.4 113.4 38.7 m2 26.6 112 m3 1 x 1 2x  1 1 1 1   x 2x 1 4 11 h 21 mins x  6.18 or x  0.324 (NA) It is because the time taken by pipe B will be negative if x  0.324 hours.

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TK 2009 Maths Prelim P2 Answers Key 6(f)

depth (m) 3 2

O

t

time (h)

7(a)(i) 7(a)(ii) 7(a)(iii) 7(b) 7(c) 8(a) 8(b)

120 120 30 ZBC or ZCB (SSS / SAS / AAS)  m  n  60  OFE is an equilateral  . 355 cm2 711 cm3 8(c) 6 8(d)(i) 0.0616 m3 8(d)(ii) 50 9(a)(i) A$1128 9(a)(ii) 1.85% 9(b) S $0.68 9(c)(i) Ride Best 9(c)(ii) 146 km 10(a) a  0.25 10(c) x  1.75 10(d) 1 Draw y  x . 2 x  1.17 10(e) Draw y  3 . 0.64  x  1.625 11(a)(i) 53 kg 11(a)(ii) 4.4 kg 11(b) 22.5% 11(c) p  13 , q  2 11(d) 52.475 kg, 3.27 kg 11(e) The median weight of School B (  55 kg) is higher than school A. Athletes from school B generally are heavier. The interquartile range of school B (  2.8 kg) is narrower as compared to school A. The weights of athletes in school B is more consistent compared to school A. OR The spread of weights distribution in school A is wider as compared to school B.

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TK 2009 Maths Prelim P2 Answers Key

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