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Capstone Apr 19 - 25 25 questions
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Monday 19 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √640

    Answer: 8√10
  2. 2. Algebra

    Complete the square: 4x² + 32x - 13

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

    Find area of triangle: a = 20cm, b = 26cm, angle = 52°. Give your answer to 2 decimal places

    Answer: 204.88cm²
  4. 4. Ratio

    a:b is 8:7 and b:c is 5:3. Find a:b:c in its simplest form.

    Answer: 40:35:21
  5. 5. Statistics

    Find the mean, median and range of: 69, 31, 45, 29, 57, 68, 49, 35. Give your answer to 2 decimal places

    Answer: Mean = 47.88, Median = 47, Range = 40

Tuesday 20 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 2√80

    Answer: 8√5
  2. 2. Algebra

    Complete the square: 4x² + 16x + 1

    Answer: 4(x + 2)² - 15
  3. 3. Geometry

    Find area of triangle: a = 30cm, b = 23cm, angle = 64°. Give your answer to 2 decimal places

    Answer: 310.08cm²
  4. 4. Ratio

    a:b is 6:7 and b:c is 8:1. Find a:b:c in its simplest form.

    Answer: 48:56:7
  5. 5. Statistics

    Find the mean, median and range of: 63, 10, 23, 10, 53, 97, 43. Give your answer to 2 decimal places

    Answer: Mean = 42.71, Median = 43, Range = 87

Wednesday 21 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √275

    Answer: 5√11
  2. 2. Algebra

    Complete the square: 2x² - 4x + 12

    Answer: 2(x - 1)² + 10
  3. 3. Geometry

    Find area of triangle: a = 12cm, b = 27cm, angle = 79°. Give your answer to 2 decimal places

    Answer: 159.02cm²
  4. 4. Ratio

    a:b is 8:9 and b:c is 4:9. Find a:b:c in its simplest form.

    Answer: 32:36:81
  5. 5. Statistics

    Find the mean, median and range of: 89, 19, 83, 79, 84, 31, 15. Give your answer to 2 decimal places

    Answer: Mean = 57.14, Median = 79, Range = 74

Thursday 22 April 2010

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √32

    Answer: 4√2
  2. 2. Algebra

    Complete the square: x² + 5x + 2

    Answer: (x + 5⁄2)² - 17⁄4
  3. 3. Geometry

    Find area of triangle: a = 25cm, b = 16cm, angle = 68°. Give your answer to 2 decimal places

    Answer: 185.44cm²
  4. 4. Ratio

    a:b is 2:9 and b:c is 5:3. Find a:b:c in its simplest form.

    Answer: 10:45:27
  5. 5. Statistics

    Find the mean, median and range of: 61, 92, 40, 98, 70, 45, 100, 26, 75. Give your answer to 2 decimal places

    Answer: Mean = 67.44, Median = 70, Range = 74

Friday 23 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 + 5x + 4

    Answer: (x + 5⁄2)² - 9⁄4
  3. 3. Geometry

    Find area of triangle: a = 23cm, b = 12cm, angle = 79°. Give your answer to 2 decimal places

    Answer: 135.46cm²
  4. 4. Ratio

    a:b is 1:3 and b:c is 2:9. Find a:b:c in its simplest form.

    Answer: 2:6:27
  5. 5. Statistics

    Find the mean, median and range of: 25, 26, 100, 60, 94, 58, 99, 47. Give your answer to 2 decimal places

    Answer: Mean = 63.63, Median = 59, Range = 75