Chemistry A chemist has a 100-gram sample of a radioactive material. He records the
Chapter 6, Problem 3(choose chapter or problem)
Chemistry A chemist has a 100-gram sample of a radioactive material. He records the amount of radioactive material every week for 7 weeks and obtains the following data: (a) Using a graphing utility, draw a scatter diagram with week as the independent variable. (b) Using a graphing utility, build an exponential model from the data. (c) Express the function found in part (b) in the form (d) Graph the exponential function found in part (b) or (c) on the scatter diagram. (e) From the result found in part (b), determine the halflife of the radioactive material. (f) How much radioactive material will be left after 50 weeks? (g) When will there be 20 grams of radioactive material?
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