imcool666
imcool666
18.07.2020 • 
Mathematics

The number of grams A of a certain radioactive substance present at time t is given by the formula A = 25e^-0.00032t, where t is the number of years from the present. How many
grams are present initially? How many grams are present after 1000 years? What is the
half-life of this substance?

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