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Capstone Dec 18 - 24 25 questions
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Monday 18 December 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √726

    Answer: 11√6
  2. 2. Algebra

    Complete the square: 5x² + 30x + 14

    Answer: 5(x + 3)² - 31
  3. 3. Geometry

    Find area of triangle: a = 21cm, b = 19cm, angle = 52°. Give your answer to 2 decimal places

    Answer: 157.21cm²
  4. 4. Ratio

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

    Answer: 64:40:45
  5. 5. Statistics

    Find the mean, median and range of: 62, 50, 92, 29, 28, 46, 43, 75, 19. Give your answer to 2 decimal places

    Answer: Mean = 49.33, Median = 46, Range = 73

Tuesday 19 December 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √300

    Answer: 10√3
  2. 2. Algebra

    Complete the square: 4x² + 16x - 11

    Answer: 4(x + 2)² - 27
  3. 3. Geometry

    Find area of triangle: a = 24cm, b = 21cm, angle = 41°. Give your answer to 2 decimal places

    Answer: 165.33cm²
  4. 4. Ratio

    a:b is 6:7 and b:c is 3:5. Find a:b:c in its simplest form.

    Answer: 18:21:35
  5. 5. Statistics

    Find the mean, median and range of: 24, 34, 39, 33, 90, 51, 48. Give your answer to 2 decimal places

    Answer: Mean = 45.57, Median = 39, Range = 66

Wednesday 20 December 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √240

    Answer: 4√15
  2. 2. Algebra

    Complete the square: 5x² + 50x + 4

    Answer: 5(x + 5)² - 121
  3. 3. Geometry

    Find area of triangle: a = 17cm, b = 30cm, angle = 54°. Give your answer to 2 decimal places

    Answer: 206.3cm²
  4. 4. Ratio

    a:b is 7:2 and b:c is 3:5. Find a:b:c in its simplest form.

    Answer: 21:6:10
  5. 5. Statistics

    Find the mean, median and range of: 22, 66, 60, 69, 79, 35, 42. Give your answer to 2 decimal places

    Answer: Mean = 53.29, Median = 60, Range = 57

Thursday 21 December 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 5√112

    Answer: 20√7
  2. 2. Algebra

    Complete the square: 3x² + 12x + 14

    Answer: 3(x + 2)² + 2
  3. 3. Geometry

    Find area of triangle: a = 25cm, b = 18cm, angle = 68°. Give your answer to 2 decimal places

    Answer: 208.62cm²
  4. 4. Ratio

    a:b is 4:7 and b:c is 3:1. Find a:b:c in its simplest form.

    Answer: 12:21:7
  5. 5. Statistics

    Find the mean, median and range of: 61, 42, 78, 18, 79, 24, 60, 36, 23. Give your answer to 2 decimal places

    Answer: Mean = 46.78, Median = 42, Range = 61

Friday 22 December 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 2√63

    Answer: 6√7
  2. 2. Algebra

    Complete the square: 4x² + 40x + 13

    Answer: 4(x + 5)² - 87
  3. 3. Geometry

    Find area of triangle: a = 25cm, b = 22cm, angle = 53°. Give your answer to 2 decimal places

    Answer: 219.62cm²
  4. 4. Ratio

    a:b is 5:6 and b:c is 5:6. Find a:b:c in its simplest form.

    Answer: 25:30:36
  5. 5. Statistics

    Find the mean, median and range of: 84, 64, 24, 26, 68, 83, 69, 69, 65. Give your answer to 2 decimal places

    Answer: Mean = 61.33, Median = 68, Range = 60