Teacher's Guide - Pearson

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1.Activity 9.3 (Student’s Book page 166)B(8;4)M(3;21)θA(22;26)135˚2. Inclination 5 tan θ 5 ________ 4 2 (26)8 2 (22) 5 1θ 5 45˚3. a) Strut supports at (3;21)b) 135˚ with the ‘positive x-axis’c) Girder mass 5 6 3 √ ____200 5 84.9 kgExercise 9.4 (Student’s Book page 166)1. Diameter 5 13 units; Radius 5 6.5 units2. a) AB 5 2.8 unitsb) M(1;4)c) AC 5 7.2 units; BC 5 7.2 units.So, ABC is isoceles.d) No, 7.2 2 7.2 2 1 2.8 2e) i) Perimeter 5 17.2 unitsii) MC 5 √ ___50 5 7.1 unitsiii) MC is an altitude sincem MC3 m AB5 21Area nABC 5 1__ 3 AB 3 MC25 1__ 3 2.8 3 7.125 9.9 units 23. a) M(0.5;6)b) P is halfway between A and M.So, P(22.75;4)4. AP 5 5.8 units, so A is not on the circle.BP 5 5 units, so B is on the circle.Chapter 9: Coordinate geometry51
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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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Page 136: ∴ 3x 2 2 12x 5 0✓∴ 3x(x 2 4)
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165. a) ___49 and ____ 6434
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Activity 14.1 (Student’s Book pag
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3.f) Object stopped and turned back
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Project (Student’s Book page 257)
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3. Speed 5 ________ distancetime
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c)d) 0 metrese) 60 metresf) Speed 5
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2. a) x 2 1 5x 1 6b) 23x 2 1 3c) 22
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2. _______ 3a 1 4b ab2xy 2 x3
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f) 2x(4x 2 1 4x 1 1)5 8x 3 1 8x 2 1
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Homework Activity (Student’s Book
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6. a) A 5 6x m 2288b) ____ 5 24
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Question 44.1 8x 3 1 64y 3 (3)4.2
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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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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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Teacher's Guide - Pearson

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