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Capstone May 9 - 15 25 questions
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Monday 9 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √931

    Answer: 7√19
  2. 2. Algebra

    Complete the square: 2x² + 16x - 3

    Answer: 2(x + 4)² - 35
  3. 3. Geometry

    Find area of triangle: a = 17cm, b = 25cm, angle = 71°. Give your answer to 2 decimal places

    Answer: 200.92cm²
  4. 4. Ratio

    a:b is 6:5 and b:c is 9:7. Find a:b:c in its simplest form.

    Answer: 54:45:35
  5. 5. Statistics

    Find the mean, median and range of: 72, 24, 65, 51, 26, 79, 92, 82. Give your answer to 2 decimal places

    Answer: Mean = 61.38, Median = 68.5, Range = 68

Tuesday 10 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √684

    Answer: 6√19
  2. 2. Algebra

    Complete the square: x² + 3x - 4

    Answer: (x + 3⁄2)² - 25⁄4
  3. 3. Geometry

    Find area of triangle: a = 22cm, b = 17cm, angle = 69°. Give your answer to 2 decimal places

    Answer: 174.58cm²
  4. 4. Ratio

    a:b is 7:3 and b:c is 8:1. Find a:b:c in its simplest form.

    Answer: 56:24:3
  5. 5. Statistics

    Find the mean, median and range of: 91, 77, 52, 85, 59, 96, 38, 17, 58. Give your answer to 2 decimal places

    Answer: Mean = 63.67, Median = 59, Range = 79

Wednesday 11 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √272

    Answer: 4√17
  2. 2. Algebra

    Complete the square: 4x² - 24x + 1

    Answer: 4(x - 3)² - 35
  3. 3. Geometry

    Find area of triangle: a = 28cm, b = 21cm, angle = 55°. Give your answer to 2 decimal places

    Answer: 240.83cm²
  4. 4. Ratio

    a:b is 7:9 and b:c is 4:7. Find a:b:c in its simplest form.

    Answer: 28:36:63
  5. 5. Statistics

    Find the mean, median and range of: 30, 56, 77, 27, 86, 61, 33, 17, 13. Give your answer to 2 decimal places

    Answer: Mean = 44.44, Median = 33, Range = 73

Thursday 12 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 4√48

    Answer: 16√3
  2. 2. Algebra

    Complete the square: x² + 9x + 9

    Answer: (x + 9⁄2)² - 45⁄4
  3. 3. Geometry

    Find area of triangle: a = 29cm, b = 24cm, angle = 48°. Give your answer to 2 decimal places

    Answer: 258.61cm²
  4. 4. Ratio

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

    Answer: 9:21:7
  5. 5. Statistics

    Find the mean, median and range of: 78, 20, 82, 76, 27, 37, 76, 27. Give your answer to 2 decimal places

    Answer: Mean = 52.88, Median = 56.5, Range = 62

Friday 13 May 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √490

    Answer: 7√10
  2. 2. Algebra

    Complete the square: 5x² + 30x

    Answer: 5(x + 3)² - 45
  3. 3. Geometry

    Find area of triangle: a = 20cm, b = 30cm, angle = 43°. Give your answer to 2 decimal places

    Answer: 204.6cm²
  4. 4. Ratio

    a:b is 3:8 and b:c is 3:2. Find a:b:c in its simplest form.

    Answer: 9:24:16
  5. 5. Statistics

    Find the mean, median and range of: 90, 14, 12, 51, 30, 81, 92, 54

    Answer: Mean = 53, Median = 52.5, Range = 80