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Darina [25.2K]
3 years ago
12

The area of a circle is 113.04in^2. what is the radius of the circle

Mathematics
1 answer:
Alex3 years ago
5 0

\bf \textit{area of a circle}\\\\ A=\pi r^2~~ \begin{cases} r=radius\\ \cline{1-1} A=113.04 \end{cases}\implies 113.04=\pi r^2\implies \cfrac{113.04}{\pi }=r^2 \\\\\\ \stackrel{using~\pi =3.14}{36}=r^2\implies \sqrt{36}=r\implies 6=r

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Step-by-step explanation:

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6 0
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ValentinkaMS [17]

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A Write an equivalent equation that does NOT contain decimals.
vampirchik [111]

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When you multiply each side of an equation by the same number,
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You should be able to solve that without help.
But I'm about to take your points, so here's
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Add  1  to each side:        5x        =  -28

Divide each side by  5 :     x         =  -28 / 5

Simplify the solution:          x         =  -5 and 4/5 .

Again ... this is the same solution as the original equation
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</span></span>
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3 years ago
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Answer:

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Step-by-step explanation:

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So you get:

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3 0
3 years ago
3x∧2±6x±x±20 sole by factorization
Trava [24]

Answer:

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