12 a. (1, -3) (2, -5) (4, -1) (5 , -4) b. (0, 2) (2, 3) (3, -1) (4, -3)
Exercise 7.3
4a. (5, 2) b. (-1, 7)
11 . (i) (5, -3) (1, -2) (6, 1) (ii) (4, -4) (7, -3) (6, -6) , (3, -6)
b. (0, -5), (4, -4), (6, -6), (2, -7)
Exercise 7.4
4. a.( -4, -6) b. (− 2 , 5) c. (-9, -5)
33
5. a. x = 3, y = 2 b. p = 3, q = 3
6. a. 1 b. k = 1
2
7. a (4, 2) (-4, 2) (-6, 2) b. (0, 0) (23, 23) ( 0, 32)
8. a (3, -2) (3, 0) (-3, 6) (-7, 2) b. (-7, -6) (-1, -12) (-1, -9) (2, -6)
Exercise 8.1
2. (a) 26 (b) 75 3 (a) 20 (b) 20 4. (a) 42 (b) 59
5. (a) 6 (b) 20 6. (a) 40 (b) 45 7. (a) 16 (b) 40
8. (a) 23.75, 32, 52.25 (b) 23, 39, 48
9. (a) 69.75, 60, 60 (b) 24.17, 34, 50.45
10. (a) 5, 11 (b) 12, 25 11.(a) 45, 45, 45 (b) 55, 55, 55
Exercise 8.2 (A)
2. (a) 11.5, 0.333 (b) 19.35, 0.60 (c) 61 (d) 40
(e) 65.90 (f) 8.44
3. (a) 46.5, 77.5 (b) 54.4, 105.6
4. (a) 15.5, 0.216 (b) 2, 0.1404 (c) 3.625, 0.19
5. (a) 4, 0.2 (b) 10, 0.25 (c) 10, 0.222
Exercise 8.2 (B)
1. (a) 12.48, 0.17 (b) 1.5, 0.103 (c) 2.83, 0.145
2. (a) 12.42, 0.177 (b) 1.5, 0.1 (c) 2.76, 0.145
3. (a) 3.66, 0.189 (b) 12.29, 0.34 (c) 55.12, 1.17
297
4. (a) 24.39, 0.97 (b) 20.46, 6.821 (c) 11.82, 0.295
Exercise 8.2 (C)
3. (a) 11.33, 0.36 (b) 3.52, 0.15 (c) 8.92, 0.26
4. (a) 6.81, 0.172 (b) 3.9 , 0.05 (c) 4.78, 0.054
5. (a) 34.75, 0.25 (b) 33.78, 0.29 (c) 74.64, 23.9
6. (a) 63.01, 19.70 (b) 217.46, 24.7
7. (a) 39.88, 52.22 (b) 37.13, 61.89
8. (a) 5.76, 12.37 (b) 10.49, 6.9
298
The words you are searching are inside this book. To get more targeted content, please make full-text search by clicking here.
RS10002_Optional math ENGLISH grade 9
Discover the best professional documents and content resources in AnyFlip Document Base.
Search