Apps. and Interpretation for IBDP Maths Ebook 1 | Seite 382

Your Practice Set – Applications and Interpretation for IBDP Mathematics
61.3 (a) (i) a �� 7 , b � 3
(ii) ( � 2, 50)
(b) c �� 6
61.4 (a) (i) a � 20 , b � 40
(b)
Exercise 62
(ii)
(iii)
62.1 (a) (i)
170
c �
3
�
40
20
8000
3
�
10
�2
(ii) 2592
(b) 12960
62.2 (a) 36�
(b) 3
62.3 (a) (i)
(ii)
64
3
(b) h � 15
62.4 (a)
8192
15
(b) h � 1.125
Exercise 63
63.1 (a) 1.5
(b) 8.84
63.2 (a) n � 3
(b) 0.745
63.3 (a) a � 3.6
(b) 372
63.4 (a)
b 1
� d x
2
2x
(b) b � 4
(c) 0.347
��
�
��1600
2
2x
�120
x�
�dx
�
�1.5( x � 2) �
�
2 � d x
�( x �10)
�
8
2
( � 4) (8 � )d
4
�
x x x
Exercise 64
64.1 (a) 6.06
(b) 0.991%
64.2 (a) 0.6
(b) 78.6
(c) 2.98%
64.3 (a) (i)
5
3
(ii)
14
f (5.75) � ,
3
19
f (5.875) �
3
(b) 5.5
(c) Overestimate
64.4 (a) a � 0.35 , b � 0.5
(b) 0.162
(c) Overestimate
Chapter 17
Exercise 65
65.1 (a) 7
(b) 7
(c) 9
(d) 5.51
65.2 (a) 6.5
(b) (i) 7
(ii) 8.5
(iii) 4.5
(iv) 4
65.3 (a) x � 8
(b) 6, 8
(c) 3
65.4 (a) (i) 48
(ii) 59
(iii) x � 6
(b) 19
(c) 6.29
372
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