Ex 1) A cup of coffee contains 130 milligrams of caffeine ...

how long will it take for half of this caffeine to be eliminated from a person’s body? 2 Exponential Decay: Another model for exponential decay is given by: where k is a constant. * This model is used by scientists to solve problems involving radioactive decay. Ex 2) The half-life of a radioactive substance is the time it takes for half the ... ................
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