Algebra-show all work

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fhtnqhtn74

Mathematics

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Algebra

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Math 012 Quiz 3 Spring 2017 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 at 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. Answer each of the questions below: a) Write the number in scientific notation: 12,323,117 b) Write the number in scientific notation: 0.005132 Math 012 Quiz 3 Page 2 c) Write the number in standard notation, without exponents: 5.321 × 10−3 d) Write the number in standard notation, without exponents: 4.325 × 103 e) Perform the indicated operations and write the answer in scientific notation: (4.1 × 105 )(3.2 × 102 ) 2) Simplify. Write the answer using positive exponents only. (4𝑥 5 𝑦10 )(3𝑥 4 𝑦 3 ) 3) Simplify. Write the answer using positive exponents only. Math 012 Quiz 3 Page 3 (3𝑎2 𝑏 −2 )3 4) Simplify. Write the answer using positive exponents only. 3𝑎−2 𝑏 3 𝑎𝑏 2 5) Perform the indicated operations and simplify: (5𝑦 2 + 4) − (3𝑦 2 + 3𝑦 − 8) 6) Perform the indicated operations and simplify: Math 012 Quiz 3 Page 4 (2𝑎 − 5𝑏)(3𝑎 + 2𝑏) 7) Perform the indicated operations and simplify: (3𝑥 − 2)(5𝑥 2 − 2𝑥 + 4) 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.” 3𝑥 2 − 3𝑥 − 18 Math 012 Quiz 3 Page 5 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. 2𝑥 2 + 10𝑥 + 12 = 0 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. 𝑥 2 − 𝑥 = 12 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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I solved those problems using grouping, please tell me what methods to use and I'll redo if necessary.The solutions are ready, please ask if something is unclear.

Math 012 Quiz 3
Spring 2017

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...


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