Math 012 Quiz 4 Fall 2016 Professor: Tara Wells Name________________________________ 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. 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 (tara.wells@faculty.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. 1) Find the excluded values for the algebraic fraction: 3 x7 5 x3 Math 012 Quiz 4 Page 2 2) Find the excluded values for the algebraic fraction: x+6 x +3 x18 2 3) Perform the indicated operation and simplify your answer: 10 n 2 6 n6 3 8 n2 Math 012 Quiz 4 Page 3 4) Perform the indicated operation and simplify your answer: 2 2 x 12 x+ 27 5 x 45 x x 3 x +7 5) Perform the indicated operation and simplify your answer: 3 6 + 2 x +1 x+ 6 6) Perform the indicated operation and simplify your answer: 5 2 n3 n+2 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. m4 m2+ 10 m+24 2 + = 2 m2 4 m2 m 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. 3x 6 2x 2 = x4 x 7 x +12 x3 Math 012 Quiz 4 Page 5 9) If a 9-foot tall adult elephant casts an 18-foot shadow, how long is the shadow of the 6-foot zookeeper? Use a proportion to set up and solve an equation. Round your answer to the nearest tenth of a foot if necessary. 10) Ellen worked 12 more overtime hours than Andrew one week. If Ellen worked 8 overtime hours for every 5 overtime hours that Andrew worked, for how many hours of overtime did each person work? Round your answer to the nearest tenth of an hour if necessary. End of quiz: please remember to sign and date the statement in the box on the first page of the quiz