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Prelim revision No 6

Prelim revision No 6. E. 6cm. F. 34 0. 1. Area? 2. Solve Graphically 2x – 3y = 6 y = x – 4 . 7cm. G. 3. Fill in relative and cumulative frequency columns. 4. Calculate angles for pie chart. 5. Break the brackets: (x – 2 )(x 2 – 3x + 5). E. 6cm. F. 34 0. 1. Area?

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Prelim revision No 6

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  1. Prelim revision No 6

  2. E 6cm F 340 1. Area? 2. Solve Graphically 2x – 3y = 6 y = x – 4 7cm G

  3. 3. Fill in relative and cumulative frequency columns. 4. Calculate angles for pie chart.

  4. 5. Break the brackets: (x – 2 )(x2 – 3x + 5)

  5. E 6cm F 340 1. Area? Area = ½ef Sin G = ½ X 7 X 6 X sin340 = 11.7cm2 7cm G

  6. (6 , 2) 2. Solve Graphically 2x – 3y = 6 y = x – 4 2x – 3y = 6 x = 0, y = -2 (0 , -2) y = 0, x = 3 (3 , 0) y = x – 4 x = 4, y = 0 (4 , 0) x = 5, y = 1 (5 , 1) 2x – 3y = 6 y = x – 4 Solution x = 6, y = 2

  7. 19/108 19 35 55 85 108 16/108 20/108 30/108 23/108 108 3. Fill in relative and frequency columns. 4. Calculate angles for pie chart. White 66.70 Espresso: 19/108 X 360 = 63.30 Mocha 1000 Latte: 16/108 X 360 = 53.30 Black 76.70

  8. 5. Break the brackets: (x – 2)(x2 – 3x + 5) = x(x2 – 3x + 5) – 2(x2 – 3x + 5) = x3 – 3x2 + 5x – 2x2+ 6x – 10 = x3 – 5x2 + 11x – 10

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