NEW!
1) sqrt (0.48), 0.702, 27/38, 0.61
2) 3.90 swiss francs
3a) 629.25
3b) 630
4) 47.9 deg or 132.1 deg (or 0.836 rad or 2.31 rad)
5) zero hours not offered; the choices given for the intervals for the number of hours spent are not continuous; time limit, such as per day or per week, not set.
6) – 1/3 (corrected)
7) 112
8) 79.4%
9a) 1000
9b) 200%
10a) 32 sec
10b) 7.5 sec
11) $78.50
12) x = 3 cm, y = 5 cm, z = 15 cm
13) $7500
14a) 1/3 (b – a)
14b) vector DC cannot be expressed as k(vector OA), so vectors DC and OA are not parallel.
15a) Two circles overlapping
15b) {4,6,7,8,9,10,11}
16a) 3b^5/2a
16b) (8x-5)/(x-3)^2
17a) a = 5, b = 19, c = 26
17b) 7n – 2
c) There is no integer value of n such that 7n-2 = 109
18a) 8 11/18 m/s
18b) 9 min 43 sec
19a) graph curves upwards, passes thru origin
19b) s = 2.25 t^2
19c) 2.98 sec
20a) 1/4
20b) 1/16
20c) 55/64
21ai) (2.6 4.3 6.8) as in 3×1 matrix
21aii) E = (151.4 135.4) as in 2×1 matrix
21aiii) It represents the masses of the coins saved by Lin and Hadi respectively
21b) (10 20 100) as in 3×1 matrix
22) $644.17
23a) 314 cm^2
23b) 5 cm by 7 cm by 11 cm
23c) 42
24a) 9(x-1)
24b) 57 cm
24c) 196 cm^2
Ad hoc O Level Math or Physics Tuition from 20 Oct to 26 Oct 2014
Suggested answers to GCE O Level 2014 Math (4016) Paper 2
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