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Capstone Dec 28 - Jan 3 25 questions
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Monday 28 December 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √294

    Answer: 7√6
  2. 2. Algebra

    Complete the square: 3x² - 24x + 10

    Answer: 3(x - 4)² - 38
  3. 3. Geometry

    Find area of triangle: a = 25cm, b = 17cm, angle = 80°. Give your answer to 2 decimal places

    Answer: 209.27cm²
  4. 4. Ratio

    a:b is 9:8 and b:c is 5:2. Find a:b:c in its simplest form.

    Answer: 45:40:16
  5. 5. Statistics

    Find the mean, median and range of: 16, 94, 15, 66, 62, 70, 100, 15

    Answer: Mean = 54.75, Median = 64, Range = 85

Tuesday 29 December 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √720

    Answer: 12√5
  2. 2. Algebra

    Complete the square: 3x² - 6x + 8

    Answer: 3(x - 1)² + 5
  3. 3. Geometry

    Find area of triangle: a = 22cm, b = 27cm, angle = 60°. Give your answer to 2 decimal places

    Answer: 257.21cm²
  4. 4. Ratio

    a:b is 8:9 and b:c is 2:9. Find a:b:c in its simplest form.

    Answer: 16:18:81
  5. 5. Statistics

    Find the mean, median and range of: 88, 26, 11, 11, 16, 19, 11

    Answer: Mean = 26, Median = 16, Range = 77

Wednesday 30 December 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √704

    Answer: 8√11
  2. 2. Algebra

    Complete the square: 3x² + 36x - 2

    Answer: 3(x + 6)² - 110
  3. 3. Geometry

    Find area of triangle: a = 20cm, b = 12cm, angle = 73°. Give your answer to 2 decimal places

    Answer: 114.76cm²
  4. 4. Ratio

    a:b is 7:8 and b:c is 9:8. Find a:b:c in its simplest form.

    Answer: 63:72:64
  5. 5. Statistics

    Find the mean, median and range of: 61, 68, 78, 32, 60, 16, 36, 98, 53. Give your answer to 2 decimal places

    Answer: Mean = 55.78, Median = 60, Range = 82

Thursday 31 December 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √243

    Answer: 9√3
  2. 2. Algebra

    Complete the square: 3x² + 24x + 11

    Answer: 3(x + 4)² - 37
  3. 3. Geometry

    Find area of triangle: a = 25cm, b = 23cm, angle = 74°. Give your answer to 2 decimal places

    Answer: 276.36cm²
  4. 4. Ratio

    a:b is 4:3 and b:c is 5:2. Find a:b:c in its simplest form.

    Answer: 20:15:6
  5. 5. Statistics

    Find the mean, median and range of: 99, 79, 66, 55, 64, 35, 37, 56, 63. Give your answer to 2 decimal places

    Answer: Mean = 61.56, Median = 63, Range = 64

Friday 1 January 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √108

    Answer: 6√3
  2. 2. Algebra

    Complete the square: 3x² + 36x - 13

    Answer: 3(x + 6)² - 121
  3. 3. Geometry

    Find area of triangle: a = 23cm, b = 17cm, angle = 49°. Give your answer to 2 decimal places

    Answer: 147.55cm²
  4. 4. Ratio

    a:b is 9:8 and b:c is 9:8. Find a:b:c in its simplest form.

    Answer: 81:72:64
  5. 5. Statistics

    Find the mean, median and range of: 95, 35, 69, 98, 44, 71, 48, 36, 97. Give your answer to 2 decimal places

    Answer: Mean = 65.89, Median = 69, Range = 63