2017 SNGS Sec 4 MA Prelim P2 Answer Key

2017 OP Prelim Exam P2 – Answer Key 1. (a) 5.2y 9(a)(i) 163.9o 3x (ii) 2.14 cm2 (b)    yx yx 3 2   (iii) 85 400 m2 (c) (i) 4 1152 7 2      x 9(b)(i) 6.32 km (ii) 41.041.7  xx (ii) 207.0o 2. (a)(i) t1060 cm (iii) 20.1o (a)(ii) 15t cm (c) 62.131.5  tt 10 (a) $54 (d) 60 ̶ 10(5.313) = 6.87 km (c) Plan C ,Option 1 3. (b)(i) 30ACE (b)(ii) 60ABD (b)(iii) 80ECB (c) cm 24.9AC 4. (a) 895 u (b) 22018 u (c) )1(23 1   nu n n (e)(iii)   232 2 n 5. (a) 4020 cm3 (b) (ii) ݎ= 5.6 (iii) 14.5 % 6. (a)(i) -2a + b (ii) 2 1 a + 4 3 b (iii) = a + 2 3 b (c) 1 : 5 7. (a) 22 (c) (i) 5.8s (ii) 2.45s (iii) 43 m/s, 0 m/s (d)(iii) v = -7t + 58 8. (a)(i) 53 or 54 (ii) 25 (iii) 325 (iv) 70 (v) P1 (b) (i) ଷ ହ (ii) ଻଻ ଵସହ