math

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the bridge was built, the wood
contained 15 grams of carbon-14. How much carbon-
14 would it have contained when it was found by the
archaeologists? Round to the nearest hundredth

  • math -

    When was the bridge built? You have omitted important information. In fact, it looks like you have omitted at least one sentence and part of another.

    Carbon-14 has a half-life of about 5,600 years.

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