Analysis and Approaches for IBDP Maths Ebook 1 | Page 316

Your Practice Set – Analysis and Approaches for IBDP Mathematics
Exercise 22
22.1 (a) (i)
10
r � or
m � 5
(b) (i) 15 or � 10
(ii)
1
2 or 2
(c) (ii) 40
22.2 (a) (i)
9
r � or
m �12
(b) (i) 15 or � 15
(ii)
1
3 or �
3
m �10
10
m �12
9
(c) (ii) 120
22.3 (a) (i)
2
r �
m �1
or m � 2
2
(b) (i) 3 or � 2
(ii)
1
2 or 2
(c) 8log2
x
(d)
63
32
9
22.4 (a) (i) r � or
m � 2
3
(b)
4 or 1
�
3
4096
(c) (ii)
7
Exercise 23
23.1 (a) 0.9
(b) 3750
(c) 16
23.2 (a)
4
3
(b) 11200
(c) 20
23.3 (a)
5
3
(b) � 79900
(c) 15
23.4 (a)
8
5
(c) 7
m �17
36
Exercise 24
24.1 (a) 1.0375
(b) 2059
24.2 (a) 1.0522
(b) 2037
24.3 (a) 1878.815
(b) 38.6%
24.4 (a) 150637
(b) 5.37
Chapter 7
Exercise 25
25.1 271
25.2 2
25.3 5
25.4 33
Exercise 26
26.1 (a) 17
(b) 1464320
26.2 (a) 10
(b) 245760000
26.3 (a) 16
(b)
13
�8.85 � 10
26.4 (a) 15
(b) � 64064
Exercise 27
27.1 5 or � 5
27.2 2 or � 2
27.3 1 or � 1
27.4 2
308
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