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The half-life of a radioactive kind of lanthanum is 4 hours. How much will be left after 8
hours, if you start with 56 grams of it?
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Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2
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An account with a $250 balance accrues 2% annually. if no deposits or withdrawals are made, which graph can be used to determine approximately how many years will it take for the balance to be $282? it's e2020 ni️️as
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