5. Krypton-85 is an inert radioactive noble gas with a half-life of approximately 10.76 years. a. Write an exponential function to model this situation and define each variable. ( b. Determine what fraction of a sample of Krypton-85 will remain after 86.08 years. State the answer as an exact fraction value. ( c. Determine how long will it take for a sample of Krypton-85 to decay to 1/64 of its original mass. Round your answer to the nearest hundredth of a year.
5. Krypton-85 is an inert radioactive noble gas with a half-life of approximately 10.76 years. a. Write an exponential function to model this situation and define each variable. ( b. Determine what fraction of a sample of Krypton-85 will remain after 86.08 years. State the answer as an exact fraction value. ( c. Determine how long will it take for a sample of Krypton-85 to decay to 1/64 of its original mass. Round your answer to the nearest hundredth of a year.
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Transcribed Image Text:5. Krypton-85 is an inert radioactive noble gas with a half-life of approximately 10.76 years.
a. Write an exponential function to model this situation and define each variable. (
b. Determine what fraction of a sample of Krypton-85 will remain after 86.08 years. State the
answer as an exact fraction value. (
C. Determine how long will it take for a sample of Krypton-85 to decay to 1/64 of its original
mass. Round your answer to the nearest hundredth of a year.
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