Change pack
Capstone Oct 15 - 21 25 questions
PDF (questions) PDF (answers)

Monday 15 October 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √363

    Answer: 11√3
  2. 2. Algebra

    Complete the square: x² + 4.4x

    Answer: (x + 2.2)² - 4.84
  3. 3. Geometry

    Find area of triangle: a = 12cm, b = 29cm, angle = 44°

    Answer: 120.9cm²
  4. 4. Ratio

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

    Answer: 8:4:3
  5. 5. Statistics

    Find the mean, median and range of: 90, 68, 94, 42, 92, 33, 33

    Answer: Mean = 64.6, Median = 68, Range = 61

Tuesday 16 October 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √125

    Answer: 5√5
  2. 2. Algebra

    Complete the square: x² + 2x

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

    Find area of triangle: a = 26cm, b = 18cm, angle = 78°

    Answer: 228.9cm²
  4. 4. Ratio

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

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

    Find the mean, median and range of: 89, 36, 38, 98, 83, 91, 43, 25

    Answer: Mean = 62.9, Median = 83, Range = 73

Wednesday 17 October 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √98

    Answer: 7√2
  2. 2. Algebra

    Complete the square: x² + 6x

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

    Find area of triangle: a = 15cm, b = 14cm, angle = 55°

    Answer: 86cm²
  4. 4. Ratio

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

    Answer: 16:12:18
  5. 5. Statistics

    Find the mean, median and range of: 83, 40, 56, 72, 55, 69, 81, 62, 39

    Answer: Mean = 61.9, Median = 62, Range = 44

Thursday 18 October 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √192

    Answer: 8√3
  2. 2. Algebra

    Complete the square: x² + 5.6x

    Answer: (x + 2.8)² - 7.84
  3. 3. Geometry

    Find area of triangle: a = 18cm, b = 30cm, angle = 48°

    Answer: 200.6cm²
  4. 4. Ratio

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

    Answer: 6:12:24
  5. 5. Statistics

    Find the mean, median and range of: 41, 43, 79, 40, 61, 100, 33, 84

    Answer: Mean = 60.1, Median = 61, Range = 67

Friday 19 October 2018

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √243

    Answer: 9√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 = 25cm, b = 17cm, angle = 47°

    Answer: 155.4cm²
  4. 4. Ratio

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

    Answer: 8:4:6
  5. 5. Statistics

    Find the mean, median and range of: 10, 89, 94, 49, 24, 83, 50

    Answer: Mean = 57, Median = 50, Range = 84