Math 012 Quiz 5 Spring 2016 Professor: Dr. Kate Bauer Name________________________________ Instructions: The quiz is worth 50 points. There are 10 questions each worth 5 points. 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. You should show all of your work to receive full credit. If you do not show work, you may earn only partial or no credit at the discretion of the professor. 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 Quizzes and Exams Conference. If you have any questions, please contact me by e-mail (kate.bauer@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: 1) Show all work as you simplify the radical expression. 75x5 y8 z3 Math 012 Quiz 5 2) Show all work as you simplify the radical expression. 3 54x12 y8 3) Show all work as you simplify the radical expression. 4 162x5 y 20 z 3 4) Perform the indicated operations and simplify the result. 5 48 + 6 147 4 300 Page 2 Math 012 Quiz 5 Page 3 5) Perform the indicated operations and simplify the result. 4 5 3 3 5 + 2 6) Perform the indicated operations and simplify the result. 3 7 2 2 Math 012 Quiz 5 7) Rationalize the denominator and simplify if possible: 420 21 8) Rationalize the denominator and simplify if possible: 6 43 2 Page 4 Math 012 Quiz 5 Page 5 9) Rationalize the denominator and simplify if possible: 6+ 3 6 3 10) Rewrite the expression using radical notation; then simplify the radical expression. 3 (16) 4 + ( 125) 2 3 End of quiz: please remember to sign and date the statement in the box on the first page of the quiz. \f\fHi Tim, Please take another look at: #2) Think about the factorization of 54 that you've done here. (3)^3 * ____ = 54? #3) Check first step of work to make sure it follows exactly from the original problem. Also check answer. This is a fourth root, so the factors to pull out of the radical should be perfect powers of 4. #4) Good start, but incomplete. Maybe there was more on the page that got cut off from the scan? #5) Please show the work you did to get the third line from the second. #6) Please show the work you did to get your first step, the one that starts with 9*7. #8) Please show the first couple of steps of work. What did you do to get from the original problem to the first thing you wrote after it? That work should be on the page. You'll find lots of examples in the text. #9) Show all work, please. #10) Please review and follow instructions. For the definition of a fractional exponents, see Section 8.6. WV . ~ 'v 2?. .. W4.A::(L'9%)\\ _- uv qg 1