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Capstone Apr 23 - 29 25 questions
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Monday 23 April 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √891

    Answer: 9√11
  2. 2. Algebra

    Complete the square: 5x² + 60x + 3

    Answer: 5(x + 6)² - 177
  3. 3. Geometry

    Find area of triangle: a = 13cm, b = 21cm, angle = 49°. Give your answer to 2 decimal places

    Answer: 103.02cm²
  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: 10, 44, 87, 17, 44, 75, 69. Give your answer to 2 decimal places

    Answer: Mean = 49.43, Median = 44, Range = 77

Tuesday 24 April 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √960

    Answer: 8√15
  2. 2. Algebra

    Complete the square: x² + 5x - 9

    Answer: (x + 5⁄2)² - 61⁄4
  3. 3. Geometry

    Find area of triangle: a = 19cm, b = 29cm, angle = 57°. Give your answer to 2 decimal places

    Answer: 231.05cm²
  4. 4. Ratio

    a:b is 5:2 and b:c is 3:7. Find a:b:c in its simplest form.

    Answer: 15:6:14
  5. 5. Statistics

    Find the mean, median and range of: 74, 84, 34, 73, 39, 67, 84, 92. Give your answer to 2 decimal places

    Answer: Mean = 68.38, Median = 73.5, Range = 58

Wednesday 25 April 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 5√28

    Answer: 10√7
  2. 2. Algebra

    Complete the square: x² + 7x - 8

    Answer: (x + 7⁄2)² - 81⁄4
  3. 3. Geometry

    Find area of triangle: a = 13cm, b = 17cm, angle = 52°. Give your answer to 2 decimal places

    Answer: 87.08cm²
  4. 4. Ratio

    a:b is 1:4 and b:c is 6:1. Find a:b:c in its simplest form.

    Answer: 3:12:2
  5. 5. Statistics

    Find the mean, median and range of: 11, 11, 80, 18, 99, 35, 17, 27

    Answer: Mean = 37.25, Median = 22.5, Range = 88

Thursday 26 April 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √147

    Answer: 7√3
  2. 2. Algebra

    Complete the square: x² + x - 3

    Answer: (x + 1⁄2)² - 13⁄4
  3. 3. Geometry

    Find area of triangle: a = 24cm, b = 13cm, angle = 47°. Give your answer to 2 decimal places

    Answer: 114.09cm²
  4. 4. Ratio

    a:b is 4:7 and b:c is 2:5. Find a:b:c in its simplest form.

    Answer: 8:14:35
  5. 5. Statistics

    Find the mean, median and range of: 16, 68, 10, 49, 35, 72, 80. Give your answer to 2 decimal places

    Answer: Mean = 47.14, Median = 49, Range = 70

Friday 27 April 2012

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √550

    Answer: 5√22
  2. 2. Algebra

    Complete the square: x² + 7x - 2

    Answer: (x + 7⁄2)² - 57⁄4
  3. 3. Geometry

    Find area of triangle: a = 23cm, b = 29cm, angle = 51°. Give your answer to 2 decimal places

    Answer: 259.18cm²
  4. 4. Ratio

    a:b is 2:7 and b:c is 3:4. Find a:b:c in its simplest form.

    Answer: 6:21:28
  5. 5. Statistics

    Find the mean, median and range of: 92, 18, 21, 44, 83, 10, 54, 54, 75. Give your answer to 2 decimal places

    Answer: Mean = 50.11, Median = 54, Range = 82