Concept explainers
a.
To calculate:
Composite function which gives the youngest siblings age in terms of the oldest.
a.
Answer to Problem 95E
The expression for the youngest siblings age in terms of the oldest siblings age is
Explanation of Solution
Give information:
Three siblings of different ages.
Oldest sibling is twice the age of the middle siblings and middle sibling is six years older than one half age of the youngest.
Calculation:
Let the
For finding out Composite function which gives the youngest siblings age in terms of the oldest.
First find expression for
Multiply each side of the equation by
Now substitute
Therefore, the expression for the youngest siblings age in terms of the oldest siblings age is
b.
To calculate:
Ages of two other siblings.
b.
Answer to Problem 95E
The age of middle child is
Explanation of Solution
Give information:
Youngest sibling is two years old.
Calculation:
For finding out the ages of the other two siblings if the youngest sibling is two years old.
And,
Thus, the age of middle child is
Chapter 1 Solutions
EBK PRECALCULUS W/LIMITS:GRAPH.APPROACH
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