Page 213 - Mathematics_Form_Two

Chapter name

3
Exercise 5�5 3. (a) 50 (f) 81
1. a = 2 13. y = 1 (b) 176 (g) − 128000
7
1
4
2. x = 1 14. n = 4 (c) 90 (h) 5184
5
3. x = 2 15. x = ± 12 (d) 129140163 (i) 84035
8
1
FOR ONLINE READING ONLY
4. r = 2 16. x = 3, y = 2 (e) 3 250
5. x = 4 17. r = − 1, s = 3
11 Exercise 5�8
6. x = 8 18. x =
3 1. (a) 8 3 (h) 7 15
6
7. x = 4 19. x = 15 Mathematics for Secondary Schools
8. h = 0.1 20. x = 9 (b) 3 11 (i) 36

9. y = 2 21. x = 2, y = 3 (c) 8 30 (j) 82
10. n = 1 22. x = 2 (d) 2 5 (k) 16 2
x
11. x = 6 23. = 1 or x = 2 3 6 3
12. x = 1 (e) 2 5 (l)
(f) 8 5 (m) 42
5
Exercise 5�6
4
4
1
1
1. 8 6.3 11. cd  c d (g) 4 6 (n) 10 2 2 7− 4
2
2
2. 10 7. 2 12. 2yz− 4 Exercise 5�9
3. 9 8. 1.1 13. 10 5× 1 2 1. 10 16. 2 2 66−
25 1
4. 0.5 9. 0.75 14. 63× 3 2. 6 17. 10 3 30+
1 3. 9 30 18. 12 18 3−
2
5. 0.3 10. 9x 15. 2 72+× 2
4. 66 19. 31 5 5+
Exercise 5�7 5. 90 20. 2

1. (a) 13 (f) 8 6. 16 6 21. 2
(b) 27 (g) 7 7. 20 6 22. 12 3 8+− 72
(c) 42 (h) 10
5
(d) 52 (i) 9 8. 60 23. 4 3 1+
4
66
(e) 32 (j) 1 5 t 9. 24. 1
s 4 3s 10. 420 25. 2 + 6 − 8 − 18

2. (a) 2 10 (f) 3 6 11. 325 5 26. 41 3 3−
3
(b) 5 10 (g) 10 2 12. 3 22+ 27. 8 2m , 8m 2
3
6
(c) 2 16 (h) 20 5 13. 20 10 28. 12 3m 3
(d) 3 2 (i) 10 14. 240 29. 100 m(diagonal), 4000 m 3
3
(e) 3 10 15. 20 3 30. 15m 2
3

207
Student's Book Form Two

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MATHEMATIC F2 v5.indd 207 11/10/2024 20:14:50
MATHEMATIC F2 v5.indd 207