Teacher's Guide - Pearson

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165. a) ___49 and ____ 64343 b) i) 210 mmii)4__ 3 210 5 120 mm76. Dimensions increase by a factor of 3 √ ______ 278 5 3__2 37.5 m2.25 m4.5 m12 m7. a) V 5 (R 2 2 r 2 ) 3 h5 (4 2 2 2.5 2 ) 3 0.155 4.6 m 3 concreteb) Cost 5 4.6 3 150 5 P690c) SA 5 30.6 m 2d) Cost 5 P78.95 3 30.6 5 P2 415.87e) He decreased the dimensions by factor 2__3 .f) i) V 5 (2__3 )3 3 4.6 5 1.36 m 3 concreteii) Savings 5 690 3 ___ 1927 5 P485.56(1 2 (2__3 )3 5 ___ 1927 )Note that cost 5 (2__3 )3 3 6905 P204.44iii) SA 5 (2__3 )2 3 30.6 5 13.6 m 2iv) Savings 5 (1 2 (2__3 )2 ) 3 2 415.875 P1 342.15Chapter 13: Surface area and volume77
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IntroductionThis Teacher’s Guide
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Extension Activity 1.1 (Student’s
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Activity 1.3 (Student’s Book page
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2c h a p t e rPatterns and sequence
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Exercise 2.3 (Student’s Book page
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Extension Activity 2.3 (Student’s
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Homework Exercise (Student’s Book
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d) 4 200 3 0.945 t < 1 000∴ t > 2
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3. Gaborone: P 5 1.86 3 10 5 3 (1 1
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multiply by 1.3 and then by 0.7, bu
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6. A 5 P1 500 000(1 1 0.089) 35 P1
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c h a p t e r5 MatricesSyllabus: Ge
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(g)(6 13211 187 21Activity 5.1 (Stu
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c) Trued) Truee) Truef) Falseg) Tru
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Assessment 1 Chapters 1-5Questio
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4. A parallelogram, AR||NO and RO||
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5. a) Angle ADE = 80º (Correspondi
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Extension activity 6.3 (Student’s
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3. Diagram Area of square A Area of
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8c h a p t e rTrigonometrySyllabus:
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Exercise 8.2 (Student’s Book page
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9c h a p t e rCoordinate geometrySy
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c) (20.5;3)d) (21;0.5)2. a) 2
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Page 138: 12c h a p t e rArea and perimeterSy
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Page 154: 13c h a p t e rSurface area and vol
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7. j 5 258. w 5 7__4 9. n 5
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∴ (x 2 30)(x 1 7) 5 0∴ x 5 30 m
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4. 1__ (2 1 x)x 5 242∴ x 2
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Activity 18.1 (Student’s Book pag
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Extension Activity 18.2 (Student’
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6. 5.75 3 100 5 575 bacteria7. T 2
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19r e t p a h c Processing data and
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4. a) Age last birthday Frequency A
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2. a) 200b) 31-40 years was the mos
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35Marks scored in a Mathematics tes
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c) Cumulative frequency of time of
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c) About 1 800 studentsd) Out of 2
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iii) Mass in kg Frequency Middle va
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Exercise 20.3 (Student’s Book pag
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21c h a p t e rScatter graphsSyllab
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2. a) Water used against average gr
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3. a)0.50.5HTH0.5TH0.50.5T0.50.50.5
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23c h a p t e rResearch skills: Dat
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Assessment 4Question 11.1 a) Two wi
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OR üüü (3)b) ___ 212 = 1
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Sample Examination Paper 2 Answers:
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Question 1111.1 Figure L is the ref
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18.1 x 22 21 0 1 2x 2 4 1ü 0ü 1 4
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Question 2121.1 ü (1)21.2 132 rpm
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