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Capstone May 12 - 18 25 questions
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Monday 12 May 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 3√54

    Answer: 9√6
  2. 2. Algebra

    Complete the square: 5x² + 20x - 11

    Answer: 5(x + 2)² - 31
  3. 3. Geometry

    Find area of triangle: a = 25cm, b = 12cm, angle = 60°. Give your answer to 2 decimal places

    Answer: 129.9cm²
  4. 4. Ratio

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

    Answer: 25:45:54
  5. 5. Statistics

    Find the mean, median and range of: 27, 34, 70, 35, 28, 79, 40, 76. Give your answer to 2 decimal places

    Answer: Mean = 48.63, Median = 37.5, Range = 52

Tuesday 13 May 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √128

    Answer: 8√2
  2. 2. Algebra

    Complete the square: 4x² - 24x - 8

    Answer: 4(x - 3)² - 44
  3. 3. Geometry

    Find area of triangle: a = 23cm, b = 29cm, angle = 62°. Give your answer to 2 decimal places

    Answer: 294.46cm²
  4. 4. Ratio

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

    Answer: 16:10:25
  5. 5. Statistics

    Find the mean, median and range of: 60, 12, 36, 79, 85, 42, 94, 49, 80. Give your answer to 2 decimal places

    Answer: Mean = 59.67, Median = 60, Range = 82

Wednesday 14 May 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √550

    Answer: 5√22
  2. 2. Algebra

    Complete the square: 4x² + 8x + 3

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

    Find area of triangle: a = 22cm, b = 18cm, angle = 79°. Give your answer to 2 decimal places

    Answer: 194.36cm²
  4. 4. Ratio

    a:b is 6:5 and b:c is 2:9. Find a:b:c in its simplest form.

    Answer: 12:10:45
  5. 5. Statistics

    Find the mean, median and range of: 28, 53, 94, 100, 29, 75, 48

    Answer: Mean = 61, Median = 53, Range = 72

Thursday 15 May 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 2√80

    Answer: 8√5
  2. 2. Algebra

    Complete the square: 4x² + 32x + 14

    Answer: 4(x + 4)² - 50
  3. 3. Geometry

    Find area of triangle: a = 30cm, b = 18cm, angle = 57°. Give your answer to 2 decimal places

    Answer: 226.44cm²
  4. 4. Ratio

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

    Answer: 35:20:28
  5. 5. Statistics

    Find the mean, median and range of: 72, 47, 87, 95, 28, 60, 68, 56, 16. Give your answer to 2 decimal places

    Answer: Mean = 58.78, Median = 60, Range = 79

Friday 16 May 2014

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 2√44

    Answer: 4√11
  2. 2. Algebra

    Complete the square: 2x² - 12x - 4

    Answer: 2(x - 3)² - 22
  3. 3. Geometry

    Find area of triangle: a = 28cm, b = 16cm, angle = 75°. Give your answer to 2 decimal places

    Answer: 216.37cm²
  4. 4. Ratio

    a:b is 1:8 and b:c is 5:2. Find a:b:c in its simplest form.

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

    Find the mean, median and range of: 22, 32, 64, 23, 66, 12, 43. Give your answer to 2 decimal places

    Answer: Mean = 37.43, Median = 32, Range = 54