[answered] Math 012 Quiz 4 Professor: John Uccellini Instructions: The

The quiz is worth 50 points. There are 10 problems, each worth 5 points.

Math 012 Quiz 4

 

Professor: Dr. John Uccellini Instructions: The quiz is worth 50 points. There are 10 problems, each worth 5 points. Your score on

 

the quiz will be converted to a percentage and posted in your assignment folder with

 

comments.

 

This quiz is open book and open notes, and you may take as long as you like on it

 

provided that you submit the quiz no later than the due date posted in our course schedule

 

of the syllabus. You may refer to your textbook, notes, and online classroom materials,

 

but you may not consult anyone or use any other online resources.

 

You must show all of your work to receive full credit. If a problem does not seem to

 

require work, write a sentence or two to justify your answer.

 

Please type your work in your copy of the quiz, or if you prefer, create a document

 

containing your work. Scanned work is also acceptable. Be sure to include your name in

 

the document. Review instructions for submitting your quiz in the Unit Quizzes Module.

 

If you have any questions, please contact me by e-mail (john.uccellini@umuc.edu). At the end of your quiz you must include the following dated statement with your name typed

 

in lieu of a signature. Without this signed statement you will receive a zero.

 

I have completed this quiz myself, working independently and not consulting anyone except the

 

instructor. I have neither given nor received help on this quiz. Name: Date: Please remember to show all of your work. \ Math 012

 

Quiz 4 Page 2 Name________________________________ 1) Find the excluded values for the algebraic fraction: (5 pts) 2x 3

 

6 5x 2) Find the excluded values for the algebraic fraction: (5 pts) x

 

x 8 x 20

 

2 3) Perform the indicated operation and simplify your answer: (5 pts)

 

8x2

 

12 x 18 14 x 21

 

2x2 Math 012

 

Quiz 4 4) Perform the indicated operation and simplify your answer: (5 pts) x2 14 x 49 x2 49 6 x2

 

18x3 5) Perform the indicated operation and simplify your answer: (5 pts) 4

 

2 x 2 x 3 6) Perform the indicated operation and simplify your answer: (5 pts) 2

 

3 y 8 y 9 Page 3 Math 012

 

Quiz 4 Page 4 7) Solve the equation and show the check of your solution(s). If an answer is an excluded value,

 

please state than on your paper. Use the method discussed in Section 7.7 of our text, clearing

 

fractions from the equation first. (5 pts)

 

x 2 14

 

5 2x

 

2x 8) Solve the equation and show the check of your solution(s). If an answer is an excluded value,

 

please state that on your paper. Use the method discussed in Section 7.7 of our text, clearing

 

fractions from the equation first. (5 pts) 1

 

4

 

1 2 x2 x 4 x2 Math 012

 

Quiz 4 Page 5 9) The daily supply of oxygen for one person is provided by 625 square feet of lawn. The

 

Chateau de Versailles? lawn is 10,890,000 square feet. A lawn of this size would be able to

 

provide the daily oxygen supply for how many people? (5 pts) 10) Two mail sorting machines are in use by a local postal office. The newer machine sorts 300

 

more letters per minute than the old machine. If the new machine runs 50 minutes for every 40

 

minutes the old machine runs, how many letters does each machine sort in a minute? ( 5 pts) Bonus: Simplify the expression below. Show all work to support you answer. (5 pts) 3x2 20 x 12

 

x2 x 30 End of quiz: please remember to sign and date the statement in the box on the first page of the

 

quiz.

 

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