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Capstone Jul 5 - 11 25 questions
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Monday 5 July 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √208

    Answer: 4√13
  2. 2. Algebra

    Complete the square: 4x² - 24x + 14

    Answer: 4(x - 3)² - 22
  3. 3. Geometry

    Find area of triangle: a = 22cm, b = 26cm, angle = 41°. Give your answer to 2 decimal places

    Answer: 187.63cm²
  4. 4. Ratio

    a:b is 4:3 and b:c is 5:8. Find a:b:c in its simplest form.

    Answer: 20:15:24
  5. 5. Statistics

    Find the mean, median and range of: 76, 51, 78, 84, 65, 49, 13. Give your answer to 2 decimal places

    Answer: Mean = 59.43, Median = 65, Range = 71

Tuesday 6 July 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √325

    Answer: 5√13
  2. 2. Algebra

    Complete the square: 4x² - 8x - 1

    Answer: 4(x - 1)² - 5
  3. 3. Geometry

    Find area of triangle: a = 15cm, b = 15cm, angle = 57°. Give your answer to 2 decimal places

    Answer: 94.35cm²
  4. 4. Ratio

    a:b is 8:9 and b:c is 8:5. Find a:b:c in its simplest form.

    Answer: 64:72:45
  5. 5. Statistics

    Find the mean, median and range of: 29, 63, 68, 75, 97, 31, 80, 33

    Answer: Mean = 59.5, Median = 65.5, Range = 68

Wednesday 7 July 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √150

    Answer: 5√6
  2. 2. Algebra

    Complete the square: 2x² - 16x + 14

    Answer: 2(x - 4)² - 18
  3. 3. Geometry

    Find area of triangle: a = 25cm, b = 18cm, angle = 49°. Give your answer to 2 decimal places

    Answer: 169.81cm²
  4. 4. Ratio

    a:b is 1:3 and b:c is 5:7. Find a:b:c in its simplest form.

    Answer: 5:15:21
  5. 5. Statistics

    Find the mean, median and range of: 27, 27, 48, 95, 69, 51, 30. Give your answer to 2 decimal places

    Answer: Mean = 49.57, Median = 48, Range = 68

Thursday 8 July 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √832

    Answer: 8√13
  2. 2. Algebra

    Complete the square: x² - 9x + 7

    Answer: (x - 9⁄2)² - 53⁄4
  3. 3. Geometry

    Find area of triangle: a = 12cm, b = 30cm, angle = 69°. Give your answer to 2 decimal places

    Answer: 168.04cm²
  4. 4. Ratio

    a:b is 3:8 and b:c is 3:1. Find a:b:c in its simplest form.

    Answer: 9:24:8
  5. 5. Statistics

    Find the mean, median and range of: 14, 65, 30, 73, 73, 100, 33. Give your answer to 2 decimal places

    Answer: Mean = 55.43, Median = 65, Range = 86

Friday 9 July 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 4√48

    Answer: 16√3
  2. 2. Algebra

    Complete the square: 4x² - 24x + 2

    Answer: 4(x - 3)² - 34
  3. 3. Geometry

    Find area of triangle: a = 18cm, b = 18cm, angle = 67°. Give your answer to 2 decimal places

    Answer: 149.12cm²
  4. 4. Ratio

    a:b is 8:3 and b:c is 4:7. Find a:b:c in its simplest form.

    Answer: 32:12:21
  5. 5. Statistics

    Find the mean, median and range of: 64, 82, 96, 26, 14, 35, 88, 68. Give your answer to 2 decimal places

    Answer: Mean = 59.13, Median = 66, Range = 82