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mdm12Section1_R_OddSolutionsFinal

# mdm12Section1_R_OddSolutionsFinal - Q1 Q11-21 Q27 Q3-9...

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Q1 Q3-9 Q11-21 Q23-25 Q27 Q29-31 Chapter 1 Review of Key Concepts, pp. 78–81 Solutions to Odd Number Problems 1. b) 2 + 4 + 8 + 16 = 30 direct ancestors Top

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3. a) b) w = 4 2 x 2 = w 2 = 16 x 2 = 8 2 y 2 = x 2 = 8 y 2 = 4 2 z 2 = y 2 = 4 z 2 =2 Total area of squares in the 4th iteration is 8z 2 = 16 cm 2 . c) Total area of all squares in the diagram is w 2 + 2 x 2 + 4 y 2 + 8 z 2 = 64 cm 2 . 5. Answers may vary. Some examples are: i) Microsoft ® Excel: spreadsheet function ii) Fathom : graphing iii) Microsoft ® Access: sorting 7. i) Corel ® Quattro ® Pro: enter +A:A3 in cell B2 in Sheet B and copy this formula through cell B9. ii) Microsoft ® Excel: enter =Sheet1!A3 in cell B2 in Sheet2 and copy this formula through cell B9. 9. Answers may vary. Top
11. Answers may vary. 13. Answers may vary. 15. To simulate 50 brainteasers, remove two cards from a deck and use the remaining 50 cards. To simulate treating yourself every Friday for five weeks, draw five cards one at a time with replacement and reshuffling. It will count as a success if the same card appears more than once.

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