Answer:
A = 26 ft²
Step-by-step explanation:
To find the area of a circle, use the formula A = πr²
We know π = 3.14 and C = 18.
Use the circumference to find "r". C = 2πr
C = 2πr
18 = 2(3.14)r
18 = 6.28r
r = 18/6.28 Exact answer
r ≈ 2.866 Rounded to three decimal places
You can use either of the two bolded "r" values. I will use the rounded answer in the formula for area.
Substitute π = 3.14 and r = 2.866.
A = πr²
A = (3.14)(2.866)² Solve exponents first
A = 3.14(8.213956) Multiply
A = 25.7918218... Unrounded answer
A ≈ 26 Rounded to nearest square foot
Add the units back in.
<h3>A = 26 ft²</h3>
See the explanation
<h2>
Explanation:</h2>
Remember you have to provide complete questions in order to get exact answers. Here I'll provide a general explanation, so:
<h3>First.</h3>

The slope is:

The y-intercept is:

By using graphing tool, we get the first graph shown below.
<h3>Second.</h3>

The slope is:

The y-intercept is:

By using graphing tool, we get the second graph shown below.
<h3>Third.</h3>

The slope is:

The y-intercept is:

By using graphing tool, we get the third graph shown below.
<h3>Fourth.</h3>

The slope is:

The y-intercept is:

By using graphing tool, we get the fourth graph shown below.
<h2>Learn more:</h2>
Linear inequalities: brainly.com/question/12984296
#LearnWithBrainly
Answer
Step-by-step explanation:
227.49 x 1.09 = 247.96