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Capstone Apr 5 - 11 25 questions
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Monday 5 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √700

    Answer: 10√7
  2. 2. Algebra

    Complete the square: 4x² - 32x - 5

    Answer: 4(x - 4)² - 69
  3. 3. Geometry

    Find area of triangle: a = 21cm, b = 25cm, angle = 68°. Give your answer to 2 decimal places

    Answer: 243.39cm²
  4. 4. Ratio

    a:b is 9:5 and b:c is 7:8. Find a:b:c in its simplest form.

    Answer: 63:35:40
  5. 5. Statistics

    Find the mean, median and range of: 96, 89, 78, 53, 46, 45, 13, 49. Give your answer to 2 decimal places

    Answer: Mean = 58.63, Median = 51, Range = 83

Tuesday 6 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √405

    Answer: 9√5
  2. 2. Algebra

    Complete the square: 3x² - 6x - 11

    Answer: 3(x - 1)² - 14
  3. 3. Geometry

    Find area of triangle: a = 13cm, b = 14cm, angle = 46°. Give your answer to 2 decimal places

    Answer: 65.46cm²
  4. 4. Ratio

    a:b is 9:7 and b:c is 8:5. Find a:b:c in its simplest form.

    Answer: 72:56:35
  5. 5. Statistics

    Find the mean, median and range of: 14, 94, 84, 35, 18, 51, 44. Give your answer to 2 decimal places

    Answer: Mean = 48.57, Median = 44, Range = 80

Wednesday 7 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √704

    Answer: 8√11
  2. 2. Algebra

    Complete the square: 4x² + 16x + 5

    Answer: 4(x + 2)² - 11
  3. 3. Geometry

    Find area of triangle: a = 27cm, b = 14cm, angle = 55°. Give your answer to 2 decimal places

    Answer: 154.82cm²
  4. 4. Ratio

    a:b is 5:9 and b:c is 7:8. Find a:b:c in its simplest form.

    Answer: 35:63:72
  5. 5. Statistics

    Find the mean, median and range of: 40, 64, 57, 94, 44, 65, 39. Give your answer to 2 decimal places

    Answer: Mean = 57.57, Median = 57, Range = 55

Thursday 8 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √350

    Answer: 5√14
  2. 2. Algebra

    Complete the square: x² + 5x

    Answer: (x + 5⁄2)² - 25⁄4
  3. 3. Geometry

    Find area of triangle: a = 29cm, b = 26cm, angle = 72°. Give your answer to 2 decimal places

    Answer: 358.55cm²
  4. 4. Ratio

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

    Answer: 21:24:32
  5. 5. Statistics

    Find the mean, median and range of: 97, 91, 52, 63, 70, 42, 65. Give your answer to 2 decimal places

    Answer: Mean = 68.57, Median = 65, Range = 55

Friday 9 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 3√275

    Answer: 15√11
  2. 2. Algebra

    Complete the square: 2x² - 4x - 7

    Answer: 2(x - 1)² - 9
  3. 3. Geometry

    Find area of triangle: a = 27cm, b = 19cm, angle = 46°. Give your answer to 2 decimal places

    Answer: 184.51cm²
  4. 4. Ratio

    a:b is 9:8 and b:c is 9:1. Find a:b:c in its simplest form.

    Answer: 81:72:8
  5. 5. Statistics

    Find the mean, median and range of: 69, 59, 74, 29, 48, 13, 90, 10, 46. Give your answer to 2 decimal places

    Answer: Mean = 48.67, Median = 48, Range = 80