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Saturday, November 21, 2009 03:33 EST

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Tussy and Gustafson - Introductory Algebra 3/e (Homework)

James Finch

Math - Developmental, Fall 2010

Instructor: Dr. Friendly

Current Score: 0/23

Due: Saturday, October 23, 2010 23:00 EDT

Question
Points
1 2 3 4 5 6 7 8
0/1 0/2 0/6 0/1 0/1 0/2 0/1 0/9
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0/23

Description

Create your course assignments by selecting questions from our bank of 1500 end-of-section exercises, as well as enhanced interactive examples with videos.

While doing their homework, students can link to the relevant interactive examples from the book and work through them again and again for additional practice before answering the question.

Students can view and hear additional instruction through the 2-5 minute Watch It links. Students will also find helpful links to online excerpts from their textbook, online-live help, tutorials, and videos.

Read It - relevant textbook pages

Watch It - videos of worked examples

Practice It - interactive examples

Master It - tutorials

Chat About It - online, live help

In this assignment we present several textbook question types found in Chapter 5 on factoring and quadratic equations in Introductory Algebra 3/e by Alan S. Tussy and R. David Gustafson published by Brooks/Cole.

Question 1 is a Vocabulary fill-in-the-blank exercise, with a links to the appropriate section of the book and an online tutor chat room.

Question 2 and 3 are Notation multiple step exercises with randomized numbers and links to the book, a practice application, a Master It application, and the chat room.

Question 4 and 5 are Practice exercises with links to the book, a video, a practice application, a Master It application, and the chat room.

Question 6 is an Application word problem with a figure from the textbook and links to the book and the chat room.

Question 7 is a Writing exercise with links to the book and the chat room.

Question 8 is an enhanced interactive Example which helps guide the student through the process needed to master the concept.


Instructions

This demo assignment allows many submissions and allows you to try another version of the same question for practice.



1. –/1 points Notes Question: TGIntroAlg3 5.1.006.
Question part
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0/1
 
Vocabulary The numbers 1, 2, 3, 4, 6, and 12 are the natural-number
Answer is not case sensitive.
of 12.

Need Help? Read It


2. –/2 points Notes Question: TGIntroAlg3 5.2.022.
Question part
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Notation Complete the factorization.
-a2 - a + 90=
Answer is not case sensitive.
(a2 + a - 90)
=-(a + 10)(a -
Answer is not case sensitive.
)

Need Help? Read It Master It


3. –/6 points Notes Question: TGIntroAlg3 5.5.014.
Question part
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0/1 0/1 0/1 0/1 0/1 0/1
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Notation Complete the solution to solve the equation.
12p2 - p - 6=0
( - 3)(3p +
Enter an exact number.
)
=0
= 0or3p + 2 =
Enter an exact number.
4p =
Enter an exact number.
3p =
Enter an exact number.
p = 3/4 p = -2/3

Need Help? Read It Practice It


4. –/1 points Notes Question: TGIntroAlg3 5.3.034.
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Practice Factor the trinomial. If it can't be factored, write PRIME.
4x2 + 24x + 11

Need Help? Read It Watch It Practice It Master It


5. –/1 points Notes Question: TGIntroAlg3 5.4.090.
Question part
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Practice Factor the polynomial.
x3 - y9

Need Help? Read It Practice It Master It


6. –/2 points Notes Question: TGIntroAlg3 5.1.102.
Question part
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Applications The rectangular-shaped landing area of (x3 + 4x2 + 5x + 20) ft2 is shaded. The dimensions of the landing area can be found by factoring. What are the length and width of the landing area?
ft (longer side)
ft (shorter side)


Need Help? Read It


7. –/1 points Notes Question: TGIntroAlg3 5.4.106.
Question part
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0/1
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0/1
 
Writing Write a comment to the student whose work is shown below, explaining the initial error that was made.
Factor the expression 4x2 - 16y2.
(2x + 4y)(2x - 4y)


Need Help? Read It


8. –/9 points Notes Question: TGIntroAlg3 5.2.E05.
Question part
Points
Submissions
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0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1
0/50 0/50 0/50 0/50 0/50 0/50 0/50 0/50 0/50
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EXAMPLE 5 Factor: -h2 + 2h + 15.
Solution We factor out -1 and then factor h2 - 2h - 15.
-h2 + 2h + 15=-1(h2 - 2h - 15)Factor out -1.
=-(h2 - 2h -
Enter an exact number.
)
=-(h -
Enter an exact number.
)(h +
Enter an exact number.
)
Use the integers -5 and 3, because their product is -15 and their sum is -2.
We can check by multiplying.
-(h - 5)(h + 3)=-(h2 + 3h - 5h -
Enter an exact number.
)
Multiply the binomials first.
=-(h2 -
Enter an exact number.
h -
Enter an exact number.
)
=-h2 +
Enter an exact number.
h +
Enter an exact number.
Self Check Factor: -x2 + 25x - 154.

Need Help? Read It Master It