Change pack
Capstone Sep 19 - 25 25 questions
PDF (questions) PDF (answers)

Monday 19 September 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √243

    Answer: 9√3
  2. 2. Algebra

    Complete the square: x² - 7x + 6

    Answer: (x - 7⁄2)² - 25⁄4
  3. 3. Geometry

    Find area of triangle: a = 30cm, b = 24cm, angle = 72°. Give your answer to 2 decimal places

    Answer: 342.38cm²
  4. 4. Ratio

    a:b is 7:3 and b:c is 5:4. Find a:b:c in its simplest form.

    Answer: 35:15:12
  5. 5. Statistics

    Find the mean, median and range of: 21, 80, 38, 89, 99, 18, 30, 65, 27. Give your answer to 2 decimal places

    Answer: Mean = 51.89, Median = 38, Range = 81

Tuesday 20 September 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √250

    Answer: 5√10
  2. 2. Algebra

    Complete the square: x² - x + 1

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

    Find area of triangle: a = 17cm, b = 28cm, angle = 53°. Give your answer to 2 decimal places

    Answer: 190.08cm²
  4. 4. Ratio

    a:b is 6:5 and b:c is 8:9. Find a:b:c in its simplest form.

    Answer: 48:40:45
  5. 5. Statistics

    Find the mean, median and range of: 93, 98, 63, 24, 75, 30, 56, 36. Give your answer to 2 decimal places

    Answer: Mean = 59.38, Median = 59.5, Range = 74

Wednesday 21 September 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 2√27

    Answer: 6√3
  2. 2. Algebra

    Complete the square: x² + 5x - 3

    Answer: (x + 5⁄2)² - 37⁄4
  3. 3. Geometry

    Find area of triangle: a = 29cm, b = 17cm, angle = 69°. Give your answer to 2 decimal places

    Answer: 230.13cm²
  4. 4. Ratio

    a:b is 5:2 and b:c is 7:1. Find a:b:c in its simplest form.

    Answer: 35:14:2
  5. 5. Statistics

    Find the mean, median and range of: 98, 24, 57, 42, 47, 40, 18. Give your answer to 2 decimal places

    Answer: Mean = 46.57, Median = 42, Range = 80

Thursday 22 September 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √810

    Answer: 9√10
  2. 2. Algebra

    Complete the square: 4x² + 24x + 6

    Answer: 4(x + 3)² - 30
  3. 3. Geometry

    Find area of triangle: a = 19cm, b = 22cm, angle = 70°. Give your answer to 2 decimal places

    Answer: 196.4cm²
  4. 4. Ratio

    a:b is 9:8 and b:c is 5:1. Find a:b:c in its simplest form.

    Answer: 45:40:8
  5. 5. Statistics

    Find the mean, median and range of: 89, 58, 18, 13, 90, 74, 37, 58, 68. Give your answer to 2 decimal places

    Answer: Mean = 56.11, Median = 58, Range = 77

Friday 23 September 2011

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 2√24

    Answer: 4√6
  2. 2. Algebra

    Complete the square: 5x² - 30x - 15

    Answer: 5(x - 3)² - 60
  3. 3. Geometry

    Find area of triangle: a = 22cm, b = 29cm, angle = 44°. Give your answer to 2 decimal places

    Answer: 221.6cm²
  4. 4. Ratio

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

    Answer: 12:28:63
  5. 5. Statistics

    Find the mean, median and range of: 57, 59, 79, 31, 75, 83, 95, 35

    Answer: Mean = 64.25, Median = 67, Range = 64