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Capstone Apr 11 - 17 25 questions
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Monday 11 April 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √180

    Answer: 6√5
  2. 2. Algebra

    Complete the square: 2x² + 12x - 1

    Answer: 2(x + 3)² - 19
  3. 3. Geometry

    Find area of triangle: a = 14cm, b = 12cm, angle = 62°. Give your answer to 2 decimal places

    Answer: 74.17cm²
  4. 4. Ratio

    a:b is 4:3 and b:c is 8:5. Find a:b:c in its simplest form.

    Answer: 32:24:15
  5. 5. Statistics

    Find the mean, median and range of: 12, 81, 100, 50, 99, 81, 52. Give your answer to 2 decimal places

    Answer: Mean = 67.86, Median = 81, Range = 88

Tuesday 12 April 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √363

    Answer: 11√3
  2. 2. Algebra

    Complete the square: x² + 5x

    Answer: (x + 5⁄2)² - 25⁄4
  3. 3. Geometry

    Find area of triangle: a = 16cm, b = 26cm, angle = 42°. Give your answer to 2 decimal places

    Answer: 139.18cm²
  4. 4. Ratio

    a:b is 6:7 and b:c is 3:8. Find a:b:c in its simplest form.

    Answer: 18:21:56
  5. 5. Statistics

    Find the mean, median and range of: 81, 96, 90, 23, 27, 51, 80

    Answer: Mean = 64, Median = 80, Range = 73

Wednesday 13 April 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 3√40

    Answer: 6√10
  2. 2. Algebra

    Complete the square: 4x² + 40x + 1

    Answer: 4(x + 5)² - 99
  3. 3. Geometry

    Find area of triangle: a = 15cm, b = 12cm, angle = 74°. Give your answer to 2 decimal places

    Answer: 86.51cm²
  4. 4. Ratio

    a:b is 8:3 and b:c is 2:9. Find a:b:c in its simplest form.

    Answer: 16:6:27
  5. 5. Statistics

    Find the mean, median and range of: 53, 76, 17, 11, 28, 40, 17. Give your answer to 2 decimal places

    Answer: Mean = 34.57, Median = 28, Range = 65

Thursday 14 April 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √448

    Answer: 8√7
  2. 2. Algebra

    Complete the square: x² - 3x - 1

    Answer: (x - 3⁄2)² - 13⁄4
  3. 3. Geometry

    Find area of triangle: a = 18cm, b = 28cm, angle = 69°. Give your answer to 2 decimal places

    Answer: 235.26cm²
  4. 4. Ratio

    a:b is 4:9 and b:c is 2:3. Find a:b:c in its simplest form.

    Answer: 8:18:27
  5. 5. Statistics

    Find the mean, median and range of: 21, 38, 72, 53, 81, 91, 59. Give your answer to 2 decimal places

    Answer: Mean = 59.29, Median = 59, Range = 70

Friday 15 April 2016

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √864

    Answer: 12√6
  2. 2. Algebra

    Complete the square: x² - x - 5

    Answer: (x - 1⁄2)² - 21⁄4
  3. 3. Geometry

    Find area of triangle: a = 21cm, b = 22cm, angle = 76°. Give your answer to 2 decimal places

    Answer: 224.14cm²
  4. 4. Ratio

    a:b is 5:3 and b:c is 7:4. Find a:b:c in its simplest form.

    Answer: 35:21:12
  5. 5. Statistics

    Find the mean, median and range of: 48, 73, 79, 47, 83, 62, 46, 16

    Answer: Mean = 56.75, Median = 55, Range = 67