Math Quiz
nscrro
math_009_quiz_3_spring_2005.docMath 009
Quiz 3 Page 2
Math 009 Quiz 3 Chapter 9.1 - 9.4
Professor: Dr. Cheryl Cleaves Spring 2015
Instructions:
· The quiz is worth 100 points. There are 10 problems, each worth 10 points. Your score on the quiz will be converted to a percentage and posted in your “User Progress” 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 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 Discussions.
· If you have any questions, please contact me by e-mail ( [email protected] ).
Please remember to show ALL of your work on every problem.
Use the distributive property to write the expression without parentheses. Then simplify the result if possible.
1.
(
)
235
xy
--=
2.
(
)
53
rp
--+=
3.
(
)
63512
x
-+-=
4.
(
)
54812
y
-+=
Solve the following equations and check your answer in the original equation. Please show all work.
5.
(
)
75
6
z
z
-
=-
Select the correct choice and, if appropriate, fill in the answer box to complete your choice.
· z = (Simplify your answer.)
· The solution is the set of all real numbers.
· There is no solution.
6.
(
)
(
)
258641
xxx
+-=-+
Select the correct choice and, if appropriate, fill in the answer box to complete your choice.
· z = (Simplify your answer.)
· The solution is the set of all real numbers.
· There is no solution.
7.
(
)
(
)
5434
42
xx
-+
=
Select the correct choice and, if appropriate, fill in the answer box to complete your choice.
· z = (Simplify your answer.)
· The solution is the set of all real numbers.
· There is no solution.
8.
(
)
43113129
xx
-+=+
Select the correct choice and, if appropriate, fill in the answer box to complete your choice.
· z = (Simplify your answer.)
· The solution is the set of all real numbers.
· There is no solution
9. Laquita and Darren earn a combined annual income of $186,000. If Laquita earns $36,000 per year more than Darren, what are their individual annual salaries?
10. The sum of the measures of the angles in any triangle is 180°. Jacqueline has a triangular area in her back yard where she intends to create a garden. If the largest angle is five times the smallest and the middle angle is 20° more than twice the smallest, find the measure of each angle. (It may help to draw the triangle and label each angle.)
Bonus (3 points) (no partial credit on Bonus)
Joshua’s $345,000 estate is to be divided so that his wife receives twice as much as his son. Find the amount of money that his wife receives and the amount of money that his son receives.
Below you must sign and date the following statement with your name typed (or you can hand write and scan as a PDF file) in lieu of a signature. Without this signed statement you will receive a zero.
I have received no help from any online source or any person except the teacher on this quiz.
Name: Date:
