Numbers and Their Application to Math and Science

Odd Solutions for HW Numbers Lesson 8

1. Compare in magnitude the decimal representations for: 22/7, 355/113, and .

   A. 22/7= 3.142857... > 355/113= 3.1415929... > = 3.14159265...
   

2.  

3. Convert 468.468468... into the ratio of two integers.
   A. 52000/111 (or 468 156/333 or 468 468/999, ...)
4.  

5. Simplify: 3 × 15 + 2 × 6.
   A. 45 + 12 = 57

6.  

7. Simplify: 4 × [2 - 3(x + 1)²] × (2 - 10 ÷ 5).
   A. 0

8.  

9. Solve for x and graph on a number line: 2x - 4 > -11(x - 2).
   A. x > 2

10.  

11. Factor completely: x² + 9x + 20 = (x + 4)(x + 5)

12.  

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