Concept explainers
a.
To write: An equation for the area of the eating section.
A equation is
Given:
School is adding a rectangular outdoor eating section along part of a
The school has
Calculation:
The eating section is in the shape of a rectangle. The area of a rectangle is the product of its length and width.
From the figure, find that the length is
Thus, an equation for the area of the eating section is
b.
To find: Solution of an equation.
Solution of an equation is
Given:
School is adding a rectangular outdoor eating section along part of a
The school has
Calculation:
For solving the equation, first apply the distributive property.
Divide each term by
Square half the coefficient of
Add
Write the left side as a binomial squared and simplify.
Take the square root on each side.
Add
Simplify the radical.
Use a calculator to evaluate.
The solutions are
Evaluate
Also,
Since the width of the eating section cannot be greater than the length of the side of the school,
c.
To find: Dimensions of the eating section.
The dimensions of the eating section are
Given:
School is adding a rectangular outdoor eating section along part of a
The school has
Calculation:
In this case,
Chapter 1 Solutions
EBK ALGEBRA 2
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