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Capstone Apr 18 - 24 25 questions
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Monday 18 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √525

    Answer: 5√21
  2. 2. Algebra

    Complete the square: 3x² + 24x + 5

    Answer: 3(x + 4)² - 43
  3. 3. Geometry

    Find area of triangle: a = 16cm, b = 30cm, angle = 56°. Give your answer to 2 decimal places

    Answer: 198.97cm²
  4. 4. Ratio

    a:b is 5:6 and b:c is 7:1. Find a:b:c in its simplest form.

    Answer: 35:42:6
  5. 5. Statistics

    Find the mean, median and range of: 38, 60, 95, 33, 11, 36, 91, 13. Give your answer to 2 decimal places

    Answer: Mean = 47.13, Median = 37, Range = 84

Tuesday 19 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √80

    Answer: 4√5
  2. 2. Algebra

    Complete the square: 5x² - 40x + 8

    Answer: 5(x - 4)² - 72
  3. 3. Geometry

    Find area of triangle: a = 28cm, b = 25cm, angle = 59°. Give your answer to 2 decimal places

    Answer: 300.01cm²
  4. 4. Ratio

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

    Answer: 9:21:28
  5. 5. Statistics

    Find the mean, median and range of: 12, 36, 27, 32, 79, 40, 16, 24, 30. Give your answer to 2 decimal places

    Answer: Mean = 32.89, Median = 30, Range = 67

Wednesday 20 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √343

    Answer: 7√7
  2. 2. Algebra

    Complete the square: 4x² + 8x

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

    Find area of triangle: a = 24cm, b = 28cm, angle = 65°. Give your answer to 2 decimal places

    Answer: 304.52cm²
  4. 4. Ratio

    a:b is 3:5 and b:c is 6:7. Find a:b:c in its simplest form.

    Answer: 18:30:35
  5. 5. Statistics

    Find the mean, median and range of: 36, 39, 17, 81, 68, 33, 39, 31

    Answer: Mean = 43, Median = 37.5, Range = 64

Thursday 21 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 2√18

    Answer: 6√2
  2. 2. Algebra

    Complete the square: 3x² - 36x + 4

    Answer: 3(x - 6)² - 104
  3. 3. Geometry

    Find area of triangle: a = 15cm, b = 15cm, angle = 40°. Give your answer to 2 decimal places

    Answer: 72.31cm²
  4. 4. Ratio

    a:b is 1:3 and b:c is 8:3. Find a:b:c in its simplest form.

    Answer: 8:24:9
  5. 5. Statistics

    Find the mean, median and range of: 62, 52, 44, 17, 37, 95, 67. Give your answer to 2 decimal places

    Answer: Mean = 53.43, Median = 52, Range = 78

Friday 22 April 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √500

    Answer: 10√5
  2. 2. Algebra

    Complete the square: 5x² - 20x - 8

    Answer: 5(x - 2)² - 28
  3. 3. Geometry

    Find area of triangle: a = 16cm, b = 26cm, angle = 61°. Give your answer to 2 decimal places

    Answer: 181.92cm²
  4. 4. Ratio

    a:b is 8:3 and b:c is 4:9. Find a:b:c in its simplest form.

    Answer: 32:12:27
  5. 5. Statistics

    Find the mean, median and range of: 28, 40, 14, 24, 28, 35, 71. Give your answer to 2 decimal places

    Answer: Mean = 34.29, Median = 28, Range = 57