Concept explainers
a.
To write: Polynomial that represents the area and perimeter of golf hole.
a.
Answer to Problem 9CA
The polynomial is
Explanation of Solution
Given Information: Length of rectangle is
Calculation:
Let length of rectangle be
It is evident from the figure that golf hole is made up of one rectangle and one square,
Area of golf hole
Area of golf hole
Thus, the polynomial is
b.
To write: Polynomial that represents the perimeter of golf hole.
b.
Answer to Problem 9CA
The polynomial is
Explanation of Solution
Given Information: Length of rectangle is
Calculation:
Perimeter of golf hole=
Perimeter of golf hole
Thus, the polynomial is
c.
To find: The perimeter when area is
c.
Answer to Problem 9CA
The perimeter is
Explanation of Solution
Given Information: Length of rectangle is
Calculation:
Area=
Writing left hand side factored and simplifying,
As area cannot be negative,
Perimeter
Thus, the perimeter is
Chapter 7 Solutions
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