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Capstone Mar 28 - Apr 3 25 questions
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Monday 28 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √504

    Answer: 6√14
  2. 2. Algebra

    Complete the square: x² + 9x + 3

    Answer: (x + 9⁄2)² - 69⁄4
  3. 3. Geometry

    Find area of triangle: a = 17cm, b = 23cm, angle = 63°. Give your answer to 2 decimal places

    Answer: 174.19cm²
  4. 4. Ratio

    a:b is 7:9 and b:c is 7:4. Find a:b:c in its simplest form.

    Answer: 49:63:36
  5. 5. Statistics

    Find the mean, median and range of: 48, 52, 87, 99, 95, 40, 86, 28, 68

    Answer: Mean = 67, Median = 68, Range = 71

Tuesday 29 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √245

    Answer: 7√5
  2. 2. Algebra

    Complete the square: 2x² + 4x - 8

    Answer: 2(x + 1)² - 10
  3. 3. Geometry

    Find area of triangle: a = 21cm, b = 17cm, angle = 76°. Give your answer to 2 decimal places

    Answer: 173.2cm²
  4. 4. Ratio

    a:b is 8:7 and b:c is 5:4. Find a:b:c in its simplest form.

    Answer: 40:35:28
  5. 5. Statistics

    Find the mean, median and range of: 29, 82, 10, 54, 27, 49, 48, 47, 20. Give your answer to 2 decimal places

    Answer: Mean = 40.67, Median = 47, Range = 72

Wednesday 30 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √720

    Answer: 12√5
  2. 2. Algebra

    Complete the square: x² - x - 7

    Answer: (x - 1⁄2)² - 29⁄4
  3. 3. Geometry

    Find area of triangle: a = 13cm, b = 30cm, angle = 59°. Give your answer to 2 decimal places

    Answer: 167.15cm²
  4. 4. Ratio

    a:b is 2:9 and b:c is 7:1. Find a:b:c in its simplest form.

    Answer: 14:63:9
  5. 5. Statistics

    Find the mean, median and range of: 20, 47, 19, 83, 28, 47, 36, 14, 18. Give your answer to 2 decimal places

    Answer: Mean = 34.67, Median = 28, Range = 69

Thursday 31 March 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √640

    Answer: 8√10
  2. 2. Algebra

    Complete the square: x² - 7x - 8

    Answer: (x - 7⁄2)² - 81⁄4
  3. 3. Geometry

    Find area of triangle: a = 14cm, b = 15cm, angle = 63°. Give your answer to 2 decimal places

    Answer: 93.56cm²
  4. 4. Ratio

    a:b is 2:5 and b:c is 9:7. Find a:b:c in its simplest form.

    Answer: 18:45:35
  5. 5. Statistics

    Find the mean, median and range of: 29, 100, 52, 87, 36, 77, 58, 73, 93. Give your answer to 2 decimal places

    Answer: Mean = 67.22, Median = 73, Range = 71

Friday 1 April 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √448

    Answer: 8√7
  2. 2. Algebra

    Complete the square: x² - x + 8

    Answer: (x - 1⁄2)² + 31⁄4
  3. 3. Geometry

    Find area of triangle: a = 28cm, b = 28cm, angle = 40°. Give your answer to 2 decimal places

    Answer: 251.97cm²
  4. 4. Ratio

    a:b is 5:4 and b:c is 3:7. Find a:b:c in its simplest form.

    Answer: 15:12:28
  5. 5. Statistics

    Find the mean, median and range of: 69, 86, 61, 93, 77, 46, 31, 61

    Answer: Mean = 65.5, Median = 65, Range = 62