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Solve the equation than round to the nearest tenth. Be advised that the symbol "^" means the "raised to second power"C^2-81=144
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14 votes
14 votes
Solve the equation than round to the nearest tenth. Be advised that the symbol "^" means the "raised to second power"C^2-81=144

User Gregory Seront
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1 Answer

11 votes
11 votes

c\text{ = +15.0 or -15.0}

Here, we want to solve the given equation

We proceed as follows;


\begin{gathered} c^2-81\text{ = 144} \\ c^2\text{ = 144 + 81} \\ c^2=\text{ 225} \\ c\text{ = }\pm\sqrt[]{225} \\ c\text{ = +15 or -15} \end{gathered}

User Dscl
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