Change pack
Capstone Feb 11 - 17 25 questions
PDF (questions) PDF (answers)

Monday 11 February 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √192

    Answer: 8√3
  2. 2. Algebra

    Complete the square: x² + 3x

    Answer: (x + 1.5)² - 2.25
  3. 3. Geometry

    Find area of triangle: a = 16cm, b = 15cm, angle = 55°

    Answer: 98.3cm²
  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: 93, 45, 81, 72, 32, 73, 69

    Answer: Mean = 66.4, Median = 72, Range = 61

Tuesday 12 February 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √200

    Answer: 10√2
  2. 2. Algebra

    Complete the square: x² + 2.4x

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

    Find area of triangle: a = 23cm, b = 30cm, angle = 55°

    Answer: 282.6cm²
  4. 4. Ratio

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

    Answer: 16:12:9
  5. 5. Statistics

    Find the mean, median and range of: 85, 15, 33, 84, 96, 31, 93

    Answer: Mean = 62.4, Median = 84, Range = 81

Wednesday 13 February 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √75

    Answer: 5√3
  2. 2. Algebra

    Complete the square: x² + 5.8x

    Answer: (x + 2.9)² - 8.41
  3. 3. Geometry

    Find area of triangle: a = 26cm, b = 26cm, angle = 57°

    Answer: 283.5cm²
  4. 4. Ratio

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

    Answer: 9:6:8
  5. 5. Statistics

    Find the mean, median and range of: 49, 21, 96, 55, 18, 24, 20, 23, 78

    Answer: Mean = 42.7, Median = 24, Range = 78

Thursday 14 February 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √288

    Answer: 12√2
  2. 2. Algebra

    Complete the square: x² + 5.2x

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

    Find area of triangle: a = 21cm, b = 24cm, angle = 80°

    Answer: 248.2cm²
  4. 4. Ratio

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

    Answer: 2:4:6
  5. 5. Statistics

    Find the mean, median and range of: 96, 84, 79, 15, 25, 19, 77, 61, 49

    Answer: Mean = 56.1, Median = 61, Range = 81

Friday 15 February 2019

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √128

    Answer: 8√2
  2. 2. Algebra

    Complete the square: x² + 4.6x

    Answer: (x + 2.3)² - 5.29
  3. 3. Geometry

    Find area of triangle: a = 17cm, b = 18cm, angle = 68°

    Answer: 141.9cm²
  4. 4. Ratio

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

    Answer: 3:2:4
  5. 5. Statistics

    Find the mean, median and range of: 76, 13, 60, 74, 27, 42, 73, 66, 86

    Answer: Mean = 57.4, Median = 66, Range = 73