ERRATA MATHEMATICS FOR THE INTERNATIONAL STUDENT 8 MYP 3

Transcription

1 MATHEMATICS FOR THE INTERNATIONAL STUDENT Mark Humhries First edition rerint age 515 ANSWERS EXERCISE 10E 1 c 3 cm 2 age 517 ANSWERS EXERCISE 12C.2

2 MATHEMATICS FOR THE INTERNATIONAL STUDENT Mark Humhries First edition rerint age 44 RULES FOR ROUNDING change 2nd and 3rd bullet oints as follows: Rounding to one decimal lace Rounding to two decimal laces age 75 EXAMPLE 3 solution b 0:042 = 0: % = 4:2% fshift decimal oint 2 laces to the rightg age 91 TEXT first line and blue box under the SIMPLE INTEREST FORMULA heading should be: The simle interest I can be calculated using the formula: I = Crn where C is the rincial or the amount borrowed or invested, r is the flat rate of interest er annum, n is the time or duration of the loan in years. age 95 TEXT first line under the THE COMPOUND INTEREST FORMULA heading should be: Suose you invest $1000 in the bank for 3 years, earning 10%.a. comound interest. age 120 EXAMPLE 2 b What ercentage of the Australian budget was sent on mental health services? age 122 EXERCISE 5A first aragrah of question 9 should read: This line grah shows the variation in the value of a gram of gold over a number of years. Determine: age 193 INVESTIGATION 1 2 d 15 5 age 214 TEXT highlighted text in blue box at the bottom of age should read: 1 kilometre (km) = 1000 metres (m) 1 metre (m) = 100 centimetres (cm) 1 centimetre (cm) = 10 millimetres (mm) age 224 CONVERTING AREA UNITS halfway down the age should read: To convert units of area, we can use a conversion diagram:

3 age 264 EXAMPLE 2 Find, correct to 3 significant figures, the volume of the following solids: age 24 TEXT change 6th line from bottom of age: ) (1:, 0:1) also satisfies y = 1 2 x 1. also, change the equation on the grah: y y Qw_\x x (.,. ) age 356 FACTORISING WITH COMMON FACTORS is exansion 5(x 1) = 5x 5 is factorisation age 463 EXAMPLE 5 solution last line of calculator instructions should read: f 2nd cos ( 2:67 5:92 ) ENTER g age 515 ANSWERS EXERCISE 10E 1 c 3 cm 2 7 2:9 m 2 age 517 ANSWERS EXERCISE 12C.2 age 530 ANSWERS EXERCISE 1E 1 a The fish sold in week 2 looks to be 4 times as much as in week 1 whereas it is actually only double. age 53 ANSWERS EXERCISE 24A 4 d add a direction to the edge John Ruesh could indicate that John beat Ruesh.

4 MATHEMATICS FOR THE INTERNATIONAL STUDENT Mark Humhries First edition rerint age TABLE OF CONTENTS change section number: 26 ACTIVITIES 495 age 44 RULES FOR ROUNDING change 2nd and 3rd bullet oints as follows: Rounding to one decimal lace Rounding to two decimal laces age 75 EXAMPLE 3 solution b 0:042 = 0: % = 4:2% fshift decimal oint 2 laces to the rightg age 91 TEXT first line and blue box under the SIMPLE INTEREST FORMULA heading should be: The simle interest I can be calculated using the formula: I = Crn where C is the rincial or the amount borrowed or invested, r is the flat rate of interest er annum, n is the time or duration of the loan in years. age 95 TEXT first line under the THE COMPOUND INTEREST FORMULA heading should be: Suose you invest $1000 in the bank for 3 years, earning 10%.a. comound interest. age 122 EXERCISE 5A first aragrah of question 9 should read: This line grah shows the variation in the value of a gram of gold over a number of years. Determine: age 193 INVESTIGATION 1 2 d 15 5 age 214 TEXT highlighted text in blue box at the bottom of age should read: 1 kilometre (km) = 1000 metres (m) 1 metre (m) = 100 centimetres (cm) 1 centimetre (cm) = 10 millimetres (mm) age 224 CONVERTING AREA UNITS halfway down the age should read: To convert units of area, we can use a conversion diagram:

5 age 264 EXAMPLE 2 Find, correct to 3 significant figures, the volume of the following solids: age 24 TEXT change 6th line from bottom of age: ) (1:, 0:1) also satisfies y = 1 2 x 1. also, change the equation on the grah: y y Qw_\x x (.,. ) age 331 TEXT UNDER THE SECTION HEADING fifth line should read: AP = A 0 P, BQ = B 0 Q, and so on. age 33 TEXT correct diagram: B' M' A' 3 cm C' age 356 FACTORISING WITH COMMON FACTORS is exansion 5(x 1) = 5x 5 is factorisation age 420 TEXT last line on the age should read: every field of mathematics which existed in his day. age 463 EXAMPLE 5 solution last line of calculator instructions should read: f 2nd cos ( 2:67 5:92 ) ENTER g age 499 ACTIVITY 5 Hint: You could equate gradients of line segments. age 512 ANSWERS EXERCISE 7E last line of the answer to question 4e should read: So, oosite angles of the quadrilateral add to 10 o. age 515 ANSWERS EXERCISE 10E 1 c 3 cm 2 7 2:9 m 2 age 517 ANSWERS EXERCISE 12C.2 age 530 ANSWERS EXERCISE 1E 1 a The fish sold in week 2 looks to be 4 times as much as in week 1 whereas it is actually only double. age 53 ANSWERS EXERCISE 24A 4 d add a direction to the edge John Ruesh could indicate that John beat Ruesh.

6 MATHEMATICS FOR THE INTERNATIONAL STUDENT Mark Humhries First edition initial rint run age TABLE OF CONTENTS change section number: 26 ACTIVITIES 495 age 44 RULES FOR ROUNDING change 2nd and 3rd bullet oints as follows: Rounding to one decimal lace Rounding to two decimal laces age 75 EXAMPLE 3 solution b 0:042 = 0: % = 4:2% fshift decimal oint 2 laces to the rightg age 91 TEXT first line and blue box under the SIMPLE INTEREST FORMULA heading should be: The simle interest I can be calculated using the formula: I = Crn where C is the rincial or the amount borrowed or invested, r is the flat rate of interest er annum, n is the time or duration of the loan in years. age 95 TEXT first line under the THE COMPOUND INTEREST FORMULA heading should be: Suose you invest $1000 in the bank for 3 years, earning 10%.a. comound interest. age 122 EXERCISE 5A first aragrah of question 9 should read: This line grah shows the variation in the value of a gram of gold over a number of years. Determine: age 193 INVESTIGATION 1 2 d 15 5 age 214 TEXT highlighted text in blue box at the bottom of age should read: 1 kilometre (km) = 1000 metres (m) 1 metre (m) = 100 centimetres (cm) 1 centimetre (cm) = 10 millimetres (mm) age 224 CONVERTING AREA UNITS halfway down the age should read: To convert units of area, we can use a conversion diagram: age 264 EXAMPLE 2 Find, correct to 3 significant figures, the volume of the following solids:

7 age 24 TEXT change 6th line from bottom of age: ) (1:, 0:1) also satisfies y = 1 2 x 1. also, change the equation on the grah: y y Qw_\x x (.,. ) age 331 TEXT UNDER THE SECTION HEADING fifth line should read: AP = A 0 P, BQ = B 0 Q, and so on. age 33 TEXT correct diagram: B' M' A' 3 cm C' age 356 FACTORISING WITH COMMON FACTORS is exansion 5(x 1) = 5x 5 is factorisation age 420 TEXT last line on the age should read: every field of mathematics which existed in his day. age 463 EXAMPLE 5 solution last line of calculator instructions should read: f 2nd cos ( 2:67 5:92 ) ENTER g age 499 ACTIVITY 5 Hint: You could equate gradients of line segments. age 512 ANSWERS EXERCISE 7E last line of the answer to question 4e should read: So, oosite angles of the quadrilateral add to 10 o. age 515 ANSWERS EXERCISE 10E 1 c 3 cm 2 7 2:9 m 2 age 517 ANSWERS EXERCISE 12C.2 age 530 ANSWERS EXERCISE 1E 1 a The fish sold in week 2 looks to be 4 times as much as in week 1 whereas it is actually only double. age 53 ANSWERS EXERCISE 24A 4 d add a direction to the edge John Ruesh could indicate that John beat Ruesh.