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Capstone Apr 12 - 18 25 questions
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Monday 12 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √384

    Answer: 8√6
  2. 2. Algebra

    Complete the square: 2x² + 20x - 3

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

    Find area of triangle: a = 19cm, b = 13cm, angle = 47°. Give your answer to 2 decimal places

    Answer: 90.32cm²
  4. 4. Ratio

    a:b is 2:5 and b:c is 7:8. Find a:b:c in its simplest form.

    Answer: 14:35:40
  5. 5. Statistics

    Find the mean, median and range of: 99, 19, 83, 56, 77, 28, 42, 88

    Answer: Mean = 61.5, Median = 66.5, Range = 80

Tuesday 13 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 4√20

    Answer: 8√5
  2. 2. Algebra

    Complete the square: x² - 3x - 1

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

    Find area of triangle: a = 23cm, b = 15cm, angle = 47°. Give your answer to 2 decimal places

    Answer: 126.16cm²
  4. 4. Ratio

    a:b is 4:3 and b:c is 5:2. Find a:b:c in its simplest form.

    Answer: 20:15:6
  5. 5. Statistics

    Find the mean, median and range of: 99, 73, 61, 19, 34, 82, 44. Give your answer to 2 decimal places

    Answer: Mean = 58.86, Median = 61, Range = 80

Wednesday 14 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 2√54

    Answer: 6√6
  2. 2. Algebra

    Complete the square: x² + 5x

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

    Find area of triangle: a = 17cm, b = 21cm, angle = 75°. Give your answer to 2 decimal places

    Answer: 172.42cm²
  4. 4. Ratio

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

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

    Find the mean, median and range of: 47, 80, 99, 39, 44, 24, 67. Give your answer to 2 decimal places

    Answer: Mean = 57.14, Median = 47, Range = 75

Thursday 15 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 2√275

    Answer: 10√11
  2. 2. Algebra

    Complete the square: x² - 7x - 11

    Answer: (x - 7⁄2)² - 93⁄4
  3. 3. Geometry

    Find area of triangle: a = 13cm, b = 13cm, angle = 63°. Give your answer to 2 decimal places

    Answer: 75.29cm²
  4. 4. Ratio

    a:b is 4:7 and b:c is 6:7. Find a:b:c in its simplest form.

    Answer: 24:42:49
  5. 5. Statistics

    Find the mean, median and range of: 24, 97, 38, 14, 62, 70, 90, 86. Give your answer to 2 decimal places

    Answer: Mean = 60.13, Median = 66, Range = 83

Friday 16 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √500

    Answer: 10√5
  2. 2. Algebra

    Complete the square: x² - 11x + 4

    Answer: (x - 11⁄2)² - 105⁄4
  3. 3. Geometry

    Find area of triangle: a = 16cm, b = 17cm, angle = 51°. Give your answer to 2 decimal places

    Answer: 105.69cm²
  4. 4. Ratio

    a:b is 1:7 and b:c is 2:3. Find a:b:c in its simplest form.

    Answer: 2:14:21
  5. 5. Statistics

    Find the mean, median and range of: 20, 96, 62, 88, 60, 87, 86. Give your answer to 2 decimal places

    Answer: Mean = 71.29, Median = 86, Range = 76