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Capstone Feb 21 - 27 25 questions
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Monday 21 February 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 3√96

    Answer: 12√6
  2. 2. Algebra

    Complete the square: x² - 7x + 10

    Answer: (x - 7⁄2)² - 9⁄4
  3. 3. Geometry

    Find area of triangle: a = 19cm, b = 28cm, angle = 43°. Give your answer to 2 decimal places

    Answer: 181.41cm²
  4. 4. Ratio

    a:b is 5:3 and b:c is 4:1. Find a:b:c in its simplest form.

    Answer: 20:12:3
  5. 5. Statistics

    Find the mean, median and range of: 32, 10, 77, 76, 59, 25, 95. Give your answer to 2 decimal places

    Answer: Mean = 53.43, Median = 59, Range = 85

Tuesday 22 February 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √160

    Answer: 4√10
  2. 2. Algebra

    Complete the square: 5x² + 40x + 3

    Answer: 5(x + 4)² - 77
  3. 3. Geometry

    Find area of triangle: a = 29cm, b = 17cm, angle = 59°. Give your answer to 2 decimal places

    Answer: 211.29cm²
  4. 4. Ratio

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

    Answer: 15:6:4
  5. 5. Statistics

    Find the mean, median and range of: 57, 52, 89, 42, 58, 33, 58, 51, 59. Give your answer to 2 decimal places

    Answer: Mean = 55.44, Median = 57, Range = 56

Wednesday 23 February 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √336

    Answer: 4√21
  2. 2. Algebra

    Complete the square: x² + 5x - 7

    Answer: (x + 5⁄2)² - 53⁄4
  3. 3. Geometry

    Find area of triangle: a = 28cm, b = 22cm, angle = 50°. Give your answer to 2 decimal places

    Answer: 235.94cm²
  4. 4. Ratio

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

    Answer: 14:35:20
  5. 5. Statistics

    Find the mean, median and range of: 59, 70, 59, 46, 21, 78, 26. Give your answer to 2 decimal places

    Answer: Mean = 51.29, Median = 59, Range = 57

Thursday 24 February 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 2√160

    Answer: 8√10
  2. 2. Algebra

    Complete the square: x² - x + 9

    Answer: (x - 1⁄2)² + 35⁄4
  3. 3. Geometry

    Find area of triangle: a = 13cm, b = 19cm, angle = 68°. Give your answer to 2 decimal places

    Answer: 114.51cm²
  4. 4. Ratio

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

    Answer: 64:40:15
  5. 5. Statistics

    Find the mean, median and range of: 93, 66, 30, 89, 87, 50, 54, 62. Give your answer to 2 decimal places

    Answer: Mean = 66.38, Median = 64, Range = 63

Friday 25 February 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √350

    Answer: 5√14
  2. 2. Algebra

    Complete the square: x² - 5x - 10

    Answer: (x - 5⁄2)² - 65⁄4
  3. 3. Geometry

    Find area of triangle: a = 13cm, b = 18cm, angle = 49°. Give your answer to 2 decimal places

    Answer: 88.3cm²
  4. 4. Ratio

    a:b is 6:5 and b:c is 9:4. Find a:b:c in its simplest form.

    Answer: 54:45:20
  5. 5. Statistics

    Find the mean, median and range of: 80, 30, 42, 75, 92, 84, 33, 25, 69. Give your answer to 2 decimal places

    Answer: Mean = 58.89, Median = 69, Range = 67