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Capstone Jun 30 - Jul 6 25 questions
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Monday 30 June 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 3√250

    Answer: 15√10
  2. 2. Algebra

    Complete the square: 2x² - 16x + 4

    Answer: 2(x - 4)² - 28
  3. 3. Geometry

    Find area of triangle: a = 27cm, b = 21cm, angle = 43°. Give your answer to 2 decimal places

    Answer: 193.35cm²
  4. 4. Ratio

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

    Answer: 9:15:20
  5. 5. Statistics

    Find the mean, median and range of: 90, 99, 55, 81, 80, 31, 63, 38. Give your answer to 2 decimal places

    Answer: Mean = 67.13, Median = 71.5, Range = 68

Tuesday 1 July 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √891

    Answer: 9√11
  2. 2. Algebra

    Complete the square: 5x² - 20x - 13

    Answer: 5(x - 2)² - 33
  3. 3. Geometry

    Find area of triangle: a = 26cm, b = 23cm, angle = 41°. Give your answer to 2 decimal places

    Answer: 196.16cm²
  4. 4. Ratio

    a:b is 6:7 and b:c is 3:7. Find a:b:c in its simplest form.

    Answer: 18:21:49
  5. 5. Statistics

    Find the mean, median and range of: 42, 40, 39, 75, 21, 71, 100. Give your answer to 2 decimal places

    Answer: Mean = 55.43, Median = 42, Range = 79

Wednesday 2 July 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √147

    Answer: 7√3
  2. 2. Algebra

    Complete the square: x² - 11x - 1

    Answer: (x - 11⁄2)² - 125⁄4
  3. 3. Geometry

    Find area of triangle: a = 15cm, b = 24cm, angle = 52°. Give your answer to 2 decimal places

    Answer: 141.84cm²
  4. 4. Ratio

    a:b is 1:5 and b:c is 8:5. Find a:b:c in its simplest form.

    Answer: 8:40:25
  5. 5. Statistics

    Find the mean, median and range of: 59, 82, 77, 15, 99, 11, 57, 11. Give your answer to 2 decimal places

    Answer: Mean = 51.38, Median = 58, Range = 88

Thursday 3 July 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √1000

    Answer: 10√10
  2. 2. Algebra

    Complete the square: 4x² - 48x + 10

    Answer: 4(x - 6)² - 134
  3. 3. Geometry

    Find area of triangle: a = 27cm, b = 23cm, angle = 72°. Give your answer to 2 decimal places

    Answer: 295.3cm²
  4. 4. Ratio

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

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

    Find the mean, median and range of: 39, 56, 49, 51, 98, 45, 22, 100, 41. Give your answer to 2 decimal places

    Answer: Mean = 55.67, Median = 49, Range = 78

Friday 4 July 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √504

    Answer: 6√14
  2. 2. Algebra

    Complete the square: 5x² + 40x + 10

    Answer: 5(x + 4)² - 70
  3. 3. Geometry

    Find area of triangle: a = 17cm, b = 29cm, angle = 49°. Give your answer to 2 decimal places

    Answer: 186.04cm²
  4. 4. Ratio

    a:b is 9:4 and b:c is 9:2. Find a:b:c in its simplest form.

    Answer: 81:36:8
  5. 5. Statistics

    Find the mean, median and range of: 19, 100, 22, 43, 53, 15, 41. Give your answer to 2 decimal places

    Answer: Mean = 41.86, Median = 41, Range = 85