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Concept explainers
(a)
To find: The absolute value equation that represents time.
(a)
![Check Mark](/static/check-mark.png)
Answer to Problem 52PPS
The absolute value equation that represents time
Explanation of Solution
Given information:
The given expression CD will record an hour and a half of music plus or minus
Calculation:
Consider the expression.
Therefore, the absolute value equation that represents time
(b)
To find: The range of time in minutes that the CD could run.
(b)
![Check Mark](/static/check-mark.png)
Answer to Problem 52PPS
The range of time in minutes that the CD could run is
Explanation of Solution
Given information:
The given expression CD will record an hour and a half of music plus or minus
Calculation:
Consider the expression.
The equation of recording time is
Case
Case
Therefore, the range of time in minutes that the CD could run is
(c)
To find: The possible times on a number line.
(c)
![Check Mark](/static/check-mark.png)
Answer to Problem 52PPS
The possible times on a number line are this graph.
Explanation of Solution
Given information:
The given expression CD will record an hour and a half of music plus or minus
Calculation:
Consider the expression number line are graph as shown in the figure (1) .
Figure (1)
Therefore, the possible times on a number line are this graph.
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