College Algebra, 4th Edition

Applying the Concepts

1. 173.

   1. People who own either an MP3 or DVD player

   2. People who own both an MP3 and DVD player

2. 174.

   1. $A=\{\text{Lexus LS }460\}$

   2. $B=\{\text{Lexus LS }460,\text{ Lincoln Continental}\}$

   3. $C=\{\text{Lexus LS }460,\text{ Lincoln Continental},\text{Audi A}4\}$

   4. $A\cap B=\{\text{Lexus LS }460\}$

   5. $B\cap C=\{\text{Lexus LS }460,\text{Lincoln Continental}\}$

   6. $A\cup B=\{\text{Lexus LS }460,\text{Lincoln Continental}\}$

   7. $A\cup C=\{\text{Lexus LS }460,\text{Lincoln Continental},2011\text{ Audi A}4\}$

3. 175. $119.5\le x\le 134.5$

   

4. 176. $30\le x\le 107$

   

5. 177.

   1. $|124-120|=4$

   2. $|137-120|=17$

   3. $|114-120|=6$

6. 178.

   1. $|15-14|=1$

   2. $|15-17.5|=2.5$

   3. $|15-9|=6$

7. 179. 950 g

8. 180. Two orders