Page 216 - Mathematics_Form_Two

Chapter name

Chapter Six 9. 7.7 10 kg× 4

Exercise 6�1 10. 1.45 10 g× − 3

1. (a) 3.1065 10× 4 (i) 4.068 10× − 4 11. 7.7 10 joules× 18
(b) 9.51 10× 0 1 3 (j) 7.245 10× 0 3 12. 5.46 10 kg× 5
FOR ONLINE READING ONLY
(k) 1.985 10×
(c) 9.999 10×
Mathematics for Secondary Schools (d) 6 10× − 2 1 (l) 8 10× 1 − 1 2 1. (a) log 16 = (g) log 1 0= 3
Exercise 6�2
−
6
(e)
(m) 7.5 10×
4
1 10×
10
2
(n) 3 10×
(f) 6.903 10×
(b) log 25 2= (h) log 13 1=
5
13
8
(o) 4.6318 10×
(g) 2.53009115 10×
(c) log 243 5= (i) log 0.001= −
3
10
(h)
5.41 10×
4
10
16
(g) 3,680
2. (a) 910,000 0 (p) 2.65 10× 5 (d) log 64 3= (j) log 10 1= 9 = 2
log
(e) log 1000000 6= (k)
4
10
(b) 0.00074 (h) 0.0867 3 1
(c) 3 (i) 25 (f) log 3 1 = − 2 (l) log 23 23 = − 1
9
(d) 265,000 (j) 918,000 2. (a) 121 (d) 2
(e) 27,400 (k) 40 (b) 10000 (e) 0.25
(f) 42,000 (l) 106 1
(c) 0.1 (f)
125
3. (a) 9.0 10× 9 (d) 2.0 10× 10 x = 4 x = 10
3. (a) (i)
(b) 2.2 10× 7 (e) 1.221 10× − 2 (b) x = 0 (j) x = 4
(c) 2.04 (c) x = 5 (k) x = 125
1 x = 3
4. (a) 4.5 10× 2 (e) 4.96 10× − 5 (d) x = 64 (l)
(b) 5 10× 3 (f) 5 10× − 6 (e) x = 4 (m) x = 8
(c) 6 10× − 1 (g) 2.5 10× − 1 (f) x = 10 (n) x = 0
(d) 6.4 x = 11.3137

5. A = 31.2568 10 cm× 3 2 (g) x = − 10 (h) x = 10
6. 149,400,000,000 km. 6. 1

7. (a) 0.0000000247 m. 125
7. (a) x = (b) x = − 1
7
(b) 0.0000000339 m. 2
8. 5 10× − 1 clients per hour per stylist 8. 3

210
Student's Book Form Two

11/10/2024 20:14:59
MATHEMATIC F2 v5.indd 210
MATHEMATIC F2 v5.indd 210 11/10/2024 20:14:59