$[-/1$ Points$]$

$$ TANAPCALC$105\mathrm{.}6\mathrm{.}012.$

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Carbon$-14$ Dating Skeletal remains had lost $75\%$ of the C$-14$ they originally contained. Determine the approximate age $($in years$)$ of the bones. $($Assume the half life of carbon$-14$ is $5730$ years. Round your answer to the nearest whole number.$)$

$$ yr

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