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The number of kilograms, y, of a radioactive element that remains after t hours can be modeled by the equation y=0.23(0.91)t. What is the rate of decrease of this radioactive element?
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The number of kilograms, y, of a radioactive element that remains after t hours can be modeled by the equation y=0.23(0.91)t. What is the rate of decrease of this radioactive element?

User Ppuppim
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Answer:

c

Explanation:

User Xxxo
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