Mathematics, 22.04.2021 19:30 highflylex279
The half-life of a radioactive substance is 15 years. Determine algebraically, to the nearest year, how long it will take for 1/10 of this substance to remain.
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Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.
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Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500
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Ok a point t on a segment with endpoints d(1, 4) and f(7, 1) partitions the segment in a 2: 1 ratio. find t. you must show all work to receive credit.
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The half-life of a radioactive substance is 15 years. Determine algebraically, to the nearest year,...
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