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Aufmann et al - Introductory Algebra 7/e (Homework)

James Finch

Math - Developmental, Fall 2010

Instructor: Dr. Friendly

Current Score: 7/11

Due: Wednesday, August 18, 2010 23:30 EDT

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Question
Points
1 2 3 4 5 6 7 8 9 10
1 1 1 1 1 1 1 0/2 0/1 0/1
Total
7/11

Description

Here are some textbook questions from Introductory Algebra 7/e by Richard N. Aufmann, Vernon C. Barker, Joanne S. Lockwood published by Brooks/Cole. Click here for a list of all of the questions coded in WebAssign.


Instructions

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



1. 1/1 points All Submissions Notes Question: AufIntroAlg7 2.1.010.
Question part
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1
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1/1
 
What is the numerical coefficient of a variable term?

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2. 1/1 points All Submissions Notes Question: AufIntroAlg7 2.1.012.
Question part
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1
1
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1/1
 
For the following exercise, evaluate the variable expression when a = 9, b = 3, and c = -7.
4a + 9b
Enter an exact number.
Your answer is correct.

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3. 1/1 points All Submissions Notes Question: AufIntroAlg7 2.1.052.
Question part
Points
Submissions
1
1
8/50
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1/1
 
The value of a is the value of 2x2 - 5x - 6 when x = -5. Find the value of 9a - 9.
Enter an exact number.
Your answer is correct.

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4. 1/1 points All Submissions Notes Question: AufIntroAlg7 2.2.006.
Question part
Points
Submissions
1
1
1/50
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1/1
 
For the following exercise, simplify.
15a - 5a
<math><mrow><mn>10</mn><mi>a</mi></mrow></math> Your answer is correct.

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5. 1/1 points All Submissions Notes Question: AufIntroAlg7 2.2.032.
Question part
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Submissions
1
1
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1/1
 
For the following exercise, simplify.
14x + 14y + 14x
<math><mrow><mn>28</mn><mi>x</mi><mo>+</mo><mn>14</mn><mi>y</mi></mrow></math> Your answer is correct.

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6. 1/1 points All Submissions Notes Question: AufIntroAlg7 2.2.082.
Question part
Points
Submissions
1
1
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1/1
 
For the following exercise, simplify.
3(8x - 8)
<math><mrow><mn>24</mn><mi>x</mi><mo>-</mo><mn>24</mn></mrow></math> Your answer is correct.

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7. 1/1 points All Submissions Notes Question: AufIntroAlg7 2.3.002.
Question part
Points
Submissions
1
1
1/50
Total
1/1
 
For the following exercise, translate into a variable expression.
k less than 32
<math><mrow><mn>32</mn><mo>-</mo><mi>k</mi></mrow></math> Your answer is correct.

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8. –/2 points Notes Question: AufIntroAlg7 2.3.034.
Question part
Points
Submissions
1 2
0/1 0/1
0/50 0/50
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0/2
 
For the following exercise, translate into a variable expression. Use x for your variable.
the sum of five-eighths of a number and eighty


Simplify.

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9. –/1 points Notes Question: AufIntroAlg7 2.3.062.
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Eight gallons of crude oil were poured into two containers of different sizes. Use one variable to express the amount of oil poured into each container. Let g represent the number of gallons of oil in the first container. How many gallons of oil are in the second container?

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10. –/1 points Notes Question: AufIntroAlg7 7.2.002.
Question part
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1
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0/1
 
Graph.
y = –3x + 4

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