Change pack
Capstone Sep 23 - 29 25 questions
PDF (questions) PDF (answers)

Monday 23 September 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √147

    Answer: 7√3
  2. 2. Algebra

    Complete the square: x² + 2.2x

    Answer: (x + 1.1)² - 1.21
  3. 3. Geometry

    Find area of triangle: a = 17cm, b = 28cm, angle = 44°

    Answer: 165.3cm²
  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: 56, 27, 81, 36, 79, 87, 58, 18, 90

    Answer: Mean = 59.1, Median = 58, Range = 72

Tuesday 24 September 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √108

    Answer: 6√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 = 19cm, b = 18cm, angle = 42°

    Answer: 114.4cm²
  4. 4. Ratio

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

    Answer: 3:2:3
  5. 5. Statistics

    Find the mean, median and range of: 90, 14, 15, 28, 96, 10, 59

    Answer: Mean = 44.6, Median = 28, Range = 86

Wednesday 25 September 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √243

    Answer: 9√3
  2. 2. Algebra

    Complete the square: x² + 3.2x

    Answer: (x + 1.6)² - 2.56
  3. 3. Geometry

    Find area of triangle: a = 17cm, b = 20cm, angle = 76°

    Answer: 165cm²
  4. 4. Ratio

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

    Answer: 3:2:5
  5. 5. Statistics

    Find the mean, median and range of: 19, 10, 94, 12, 21, 95, 97, 79, 86

    Answer: Mean = 57, Median = 79, Range = 87

Thursday 26 September 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √363

    Answer: 11√3
  2. 2. Algebra

    Complete the square: x² + 2x

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

    Find area of triangle: a = 24cm, b = 12cm, angle = 66°

    Answer: 131.6cm²
  4. 4. Ratio

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

    Answer: 6:12:16
  5. 5. Statistics

    Find the mean, median and range of: 49, 53, 98, 62, 18, 32, 24

    Answer: Mean = 48, Median = 49, Range = 80

Friday 27 September 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √125

    Answer: 5√5
  2. 2. Algebra

    Complete the square: x² + 2.4x

    Answer: (x + 1.2)² - 1.44
  3. 3. Geometry

    Find area of triangle: a = 17cm, b = 29cm, angle = 78°

    Answer: 241.cm²
  4. 4. Ratio

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

    Answer: 9:12:24
  5. 5. Statistics

    Find the mean, median and range of: 59, 38, 77, 66, 30, 100, 15, 87

    Answer: Mean = 59, Median = 66, Range = 85