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23-04-2024
Mathematics

Answered

After the release of radioactive material into the atmosphere from a nuclear power plant in a country in 1982, the hay in that country was contaminated by a radioactive isotope (half-life 5 days). If it is safe to feed the hay to cows when 12% of the radioactive isotope remains, how long did the farmers need to wait to use this hay?
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Part 1
The farmers needed to wait approximately

enter your response here days for it to be safe to feed the hay to the cows.
(Round to one decimal place as needed.)

Answer :

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