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Capstone Jun 29 - Jul 5 25 questions
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Monday 29 June 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √147

    Answer: 7√3
  2. 2. Algebra

    Complete the square: x² + 5.4x

    Answer: (x + 2.7)² - 7.29
  3. 3. Geometry

    Find area of triangle: a = 26cm, b = 22cm, angle = 68°

    Answer: 265.2cm²
  4. 4. Ratio

    a:b is 3:4 and b:c is 2:5. Find a:b:c.

    Answer: 3:4:10
  5. 5. Statistics

    Find the mean, median and range of: 98, 13, 14, 61, 80, 75, 88, 92

    Answer: Mean = 65.1, Median = 80, Range = 85

Tuesday 30 June 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √75

    Answer: 5√3
  2. 2. Algebra

    Complete the square: x² + 4.8x

    Answer: (x + 2.4)² - 5.76
  3. 3. Geometry

    Find area of triangle: a = 12cm, b = 23cm, angle = 63°

    Answer: 123cm²
  4. 4. Ratio

    a:b is 2:3 and b:c is 2:5. Find a:b:c.

    Answer: 4:6:15
  5. 5. Statistics

    Find the mean, median and range of: 26, 78, 57, 93, 83, 87, 85, 14, 40

    Answer: Mean = 62.6, Median = 78, Range = 79

Wednesday 1 July 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √125

    Answer: 5√5
  2. 2. Algebra

    Complete the square: x² + 3.8x

    Answer: (x + 1.9)² - 3.61
  3. 3. Geometry

    Find area of triangle: a = 14cm, b = 23cm, angle = 56°

    Answer: 133.5cm²
  4. 4. Ratio

    a:b is 2:1 and b:c is 3:4. Find a:b:c.

    Answer: 12:6:8
  5. 5. Statistics

    Find the mean, median and range of: 90, 22, 12, 55, 74, 79, 90

    Answer: Mean = 60.3, Median = 74, Range = 78

Thursday 2 July 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √363

    Answer: 11√3
  2. 2. Algebra

    Complete the square: x² + 3.6x

    Answer: (x + 1.8)² - 3.24
  3. 3. Geometry

    Find area of triangle: a = 25cm, b = 25cm, angle = 76°

    Answer: 303.2cm²
  4. 4. Ratio

    a:b is 3:2 and b:c is 4:3. Find a:b:c.

    Answer: 6:4:3
  5. 5. Statistics

    Find the mean, median and range of: 98, 35, 32, 47, 89, 87, 85, 27

    Answer: Mean = 62.5, Median = 85, Range = 71

Friday 3 July 2020

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √192

    Answer: 8√3
  2. 2. Algebra

    Complete the square: x² + 5.2x

    Answer: (x + 2.6)² - 6.76
  3. 3. Geometry

    Find area of triangle: a = 30cm, b = 24cm, angle = 66°

    Answer: 328.9cm²
  4. 4. Ratio

    a:b is 4:3 and b:c is 3:4. Find a:b:c.

    Answer: 4:3:4
  5. 5. Statistics

    Find the mean, median and range of: 79, 22, 43, 52, 92, 34, 54, 87, 14

    Answer: Mean = 53, Median = 52, Range = 78