Wetzel                                                                                                          Math 102

Test #2

Please turn off and put away all cellphones.                  

List all numbers for which each rational expression is undefined.

1.)                                    2.)                                           3.) 

Completely Simplify.

4.)                                                                          5.)                                            

6.)                                                                      7.) 

Perform the operation(s) and simplify.

8.)                                              9.)       

10.)                                11.)                 

12.)                                     13.) 

Solve each equation.

14.)                                                              15.)                   

16.) 

17.)    One copy machine can run off copies in 15 minutes.  A newer machine can do the same job in 10 minutes.  How long would it take the two machines, working together, to make all of the necessary copies?  Show work!