Concept explainers
(a)
To find: The absolute value equation that represents time.
(a)
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)
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)
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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