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Capstone Sep 28 - Oct 4 25 questions
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Monday 28 September 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 5√8

    Answer: 10√2
  2. 2. Algebra

    Complete the square: x² - 7x - 6

    Answer: (x - 7⁄2)² - 73⁄4
  3. 3. Geometry

    Find area of triangle: a = 21cm, b = 19cm, angle = 55°. Give your answer to 2 decimal places

    Answer: 163.42cm²
  4. 4. Ratio

    a:b is 9:7 and b:c is 4:3. Find a:b:c in its simplest form.

    Answer: 36:28:21
  5. 5. Statistics

    Find the mean, median and range of: 48, 58, 90, 56, 32, 42, 67, 31

    Answer: Mean = 53, Median = 52, Range = 59

Tuesday 29 September 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 3√99

    Answer: 9√11
  2. 2. Algebra

    Complete the square: x² - x - 9

    Answer: (x - 1⁄2)² - 37⁄4
  3. 3. Geometry

    Find area of triangle: a = 17cm, b = 23cm, angle = 65°. Give your answer to 2 decimal places

    Answer: 177.18cm²
  4. 4. Ratio

    a:b is 5:4 and b:c is 3:8. Find a:b:c in its simplest form.

    Answer: 15:12:32
  5. 5. Statistics

    Find the mean, median and range of: 26, 63, 23, 14, 39, 42, 53, 68

    Answer: Mean = 41, Median = 40.5, Range = 54

Wednesday 30 September 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 5√150

    Answer: 25√6
  2. 2. Algebra

    Complete the square: x² + 7x - 6

    Answer: (x + 7⁄2)² - 73⁄4
  3. 3. Geometry

    Find area of triangle: a = 18cm, b = 19cm, angle = 67°. Give your answer to 2 decimal places

    Answer: 157.41cm²
  4. 4. Ratio

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

    Answer: 25:20:36
  5. 5. Statistics

    Find the mean, median and range of: 35, 15, 75, 44, 36, 91, 64. Give your answer to 2 decimal places

    Answer: Mean = 51.43, Median = 44, Range = 76

Thursday 1 October 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 5√250

    Answer: 25√10
  2. 2. Algebra

    Complete the square: 2x² - 20x + 12

    Answer: 2(x - 5)² - 38
  3. 3. Geometry

    Find area of triangle: a = 29cm, b = 13cm, angle = 79°. Give your answer to 2 decimal places

    Answer: 185.04cm²
  4. 4. Ratio

    a:b is 2:9 and b:c is 6:5. Find a:b:c in its simplest form.

    Answer: 4:18:15
  5. 5. Statistics

    Find the mean, median and range of: 100, 34, 14, 68, 78, 42, 72, 38

    Answer: Mean = 55.75, Median = 55, Range = 86

Friday 2 October 2015

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 4√50

    Answer: 20√2
  2. 2. Algebra

    Complete the square: x² + 7x + 7

    Answer: (x + 7⁄2)² - 21⁄4
  3. 3. Geometry

    Find area of triangle: a = 19cm, b = 15cm, angle = 78°. Give your answer to 2 decimal places

    Answer: 139.39cm²
  4. 4. Ratio

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

    Answer: 36:42:7
  5. 5. Statistics

    Find the mean, median and range of: 18, 13, 52, 92, 94, 12, 53. Give your answer to 2 decimal places

    Answer: Mean = 47.71, Median = 52, Range = 82