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Capstone Apr 22 - 28 25 questions
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Monday 22 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √567

    Answer: 9√7
  2. 2. Algebra

    Complete the square: 2x² - 24x - 15

    Answer: 2(x - 6)² - 87
  3. 3. Geometry

    Find area of triangle: a = 27cm, b = 17cm, angle = 62°. Give your answer to 2 decimal places

    Answer: 202.64cm²
  4. 4. Ratio

    a:b is 5:4 and b:c is 5:9. Find a:b:c in its simplest form.

    Answer: 25:20:36
  5. 5. Statistics

    Find the mean, median and range of: 32, 75, 77, 91, 74, 86, 26. Give your answer to 2 decimal places

    Answer: Mean = 65.86, Median = 75, Range = 65

Tuesday 23 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 5√75

    Answer: 25√3
  2. 2. Algebra

    Complete the square: x² + 9x + 2

    Answer: (x + 9⁄2)² - 73⁄4
  3. 3. Geometry

    Find area of triangle: a = 15cm, b = 12cm, angle = 69°. Give your answer to 2 decimal places

    Answer: 84.02cm²
  4. 4. Ratio

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

    Answer: 72:45:25
  5. 5. Statistics

    Find the mean, median and range of: 80, 72, 49, 33, 47, 13, 61, 11, 19. Give your answer to 2 decimal places

    Answer: Mean = 42.78, Median = 47, Range = 69

Wednesday 24 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √180

    Answer: 6√5
  2. 2. Algebra

    Complete the square: 4x² - 24x - 7

    Answer: 4(x - 3)² - 43
  3. 3. Geometry

    Find area of triangle: a = 27cm, b = 26cm, angle = 56°. Give your answer to 2 decimal places

    Answer: 290.99cm²
  4. 4. Ratio

    a:b is 1:8 and b:c is 3:5. Find a:b:c in its simplest form.

    Answer: 3:24:40
  5. 5. Statistics

    Find the mean, median and range of: 28, 57, 33, 31, 65, 42, 53. Give your answer to 2 decimal places

    Answer: Mean = 44.14, Median = 42, Range = 37

Thursday 25 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √640

    Answer: 8√10
  2. 2. Algebra

    Complete the square: x² + 3x + 6

    Answer: (x + 3⁄2)² + 15⁄4
  3. 3. Geometry

    Find area of triangle: a = 14cm, b = 29cm, angle = 61°. Give your answer to 2 decimal places

    Answer: 177.55cm²
  4. 4. Ratio

    a:b is 9:2 and b:c is 9:4. Find a:b:c in its simplest form.

    Answer: 81:18:8
  5. 5. Statistics

    Find the mean, median and range of: 61, 24, 22, 16, 85, 20, 54, 61. Give your answer to 2 decimal places

    Answer: Mean = 42.88, Median = 39, Range = 69

Friday 26 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 4√27

    Answer: 12√3
  2. 2. Algebra

    Complete the square: x² + 5x + 6

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

    Find area of triangle: a = 18cm, b = 16cm, angle = 44°. Give your answer to 2 decimal places

    Answer: 100.03cm²
  4. 4. Ratio

    a:b is 1:4 and b:c is 3:4. Find a:b:c in its simplest form.

    Answer: 3:12:16
  5. 5. Statistics

    Find the mean, median and range of: 90, 25, 73, 57, 40, 59, 35, 30. Give your answer to 2 decimal places

    Answer: Mean = 51.13, Median = 48.5, Range = 65