Radioactive carbon decays exponentially with a half-life of 5,780 years. Determine how long ago a sample of carbon began to decay if there is now 5% of it left. I'm not sure how to get started to all help is appreciated!
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Let A= the amount of radioactive material remaining at anytime t, you have the following information Use the following at and this will help you solve for k. After this solve for t when
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