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Capstone Apr 15 - 21 25 questions
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Monday 15 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √475

    Answer: 5√19
  2. 2. Algebra

    Complete the square: x² + 3x - 7

    Answer: (x + 3⁄2)² - 37⁄4
  3. 3. Geometry

    Find area of triangle: a = 23cm, b = 17cm, angle = 62°. Give your answer to 2 decimal places

    Answer: 172.62cm²
  4. 4. Ratio

    a:b is 2:5 and b:c is 6:7. Find a:b:c in its simplest form.

    Answer: 12:30:35
  5. 5. Statistics

    Find the mean, median and range of: 43, 71, 78, 82, 88, 21, 89. Give your answer to 2 decimal places

    Answer: Mean = 67.43, Median = 78, Range = 68

Tuesday 16 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √468

    Answer: 6√13
  2. 2. Algebra

    Complete the square: x² + 3x - 6

    Answer: (x + 3⁄2)² - 33⁄4
  3. 3. Geometry

    Find area of triangle: a = 26cm, b = 17cm, angle = 42°. Give your answer to 2 decimal places

    Answer: 147.88cm²
  4. 4. Ratio

    a:b is 1:3 and b:c is 8:9. Find a:b:c in its simplest form.

    Answer: 8:24:27
  5. 5. Statistics

    Find the mean, median and range of: 55, 62, 68, 83, 81, 77, 81. Give your answer to 2 decimal places

    Answer: Mean = 72.43, Median = 77, Range = 28

Wednesday 17 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √320

    Answer: 8√5
  2. 2. Algebra

    Complete the square: x² + 9x + 9

    Answer: (x + 9⁄2)² - 45⁄4
  3. 3. Geometry

    Find area of triangle: a = 14cm, b = 24cm, angle = 47°. Give your answer to 2 decimal places

    Answer: 122.87cm²
  4. 4. Ratio

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

    Answer: 42:35:25
  5. 5. Statistics

    Find the mean, median and range of: 22, 64, 60, 44, 64, 37, 78, 92. Give your answer to 2 decimal places

    Answer: Mean = 57.63, Median = 62, Range = 70

Thursday 18 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 4√40

    Answer: 8√10
  2. 2. Algebra

    Complete the square: x² + x - 12

    Answer: (x + 1⁄2)² - 49⁄4
  3. 3. Geometry

    Find area of triangle: a = 17cm, b = 14cm, angle = 44°. Give your answer to 2 decimal places

    Answer: 82.66cm²
  4. 4. Ratio

    a:b is 7:4 and b:c is 9:5. Find a:b:c in its simplest form.

    Answer: 63:36:20
  5. 5. Statistics

    Find the mean, median and range of: 94, 77, 98, 77, 30, 54, 99. Give your answer to 2 decimal places

    Answer: Mean = 75.57, Median = 77, Range = 69

Friday 19 April 2013

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √686

    Answer: 7√14
  2. 2. Algebra

    Complete the square: 3x² + 24x - 1

    Answer: 3(x + 4)² - 49
  3. 3. Geometry

    Find area of triangle: a = 29cm, b = 28cm, angle = 48°. Give your answer to 2 decimal places

    Answer: 301.72cm²
  4. 4. Ratio

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

    Answer: 9:6:14
  5. 5. Statistics

    Find the mean, median and range of: 16, 41, 52, 18, 70, 57, 37. Give your answer to 2 decimal places

    Answer: Mean = 41.57, Median = 41, Range = 54