Math WK5 Q3
Math 012
Quiz 3 Page 5
Fall 2017
Professor: Dr. Mark Kaplan
Name________________________________
Instructions:
· The quiz is worth 100 points. There are 10 problems, each worth 10 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 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 (mark.kaplan@faculty.umuc.edu).
Please remember to show all of your work.
1. Answer each of the questions below:
a) Write the number in scientific notation: 2,354,107
b) Write the number in scientific notation: 0.0512
e) Perform the indicated operations and write the answer in scientific notation:
2) Simplify. Write the answer using positive exponents only.
3) Simplify. Write the answer using positive exponents only.
4) Simplify. Write the answer using positive exponents only.
5) Perform the indicated operations and simplify:
6) Perform the indicated operations and simplify:
7) Perform the indicated operations and simplify:
8) Factor completely. Show work following the method discussed in Sections 6.1 and 6.3 of our text, and show the check by re-multiplication of the factors. If the polynomial is not factorable, write “prime.”
9) Solve the equation by the method of factoring. Use the factoring technique discussed in Section 6.4 of our text, and solve following the methods discussed in Section 6.7.
10) Solve the equation by the method of factoring. Use the factoring technique discussed in Section 6.4 of our text, and solve following the methods discussed in Section 6.7.
3
3.62210
-
´
(
)
(
)
35
5.2104.510
´´
(
)
(
)
78912
35
xyxy
(
)
4
53
2
xy
-
54
3
5
xy
xy
-
-
(
)
(
)
22
923437
xxxx
++-+-
(
)
(
)
53114
xyxy
-+
(
)
(
)
2
538415
xxx
--+
2
515200
xx
--
2
52280
xx
++=
2
72930
xx
-=
7
5.12910
´