Chromium-51 has a decay rate of 2.55 per day. The rate of change of an amount...

Chromium-51 has a decay rate of 2.55 per day. The rate of change of an amount N of chromium-51 after t days is given by dN/dt = -0.025N. a. Let N0 represent the amount of chromium-51 present at t = 0. Find an exponential function which models this situation. b. Suppose 20 milligrams of chromium-51 is present at t = 0. How much will remain after 30 days? ____________ c. What is the rate of change of the amount of chromium-51 after 30 days? ____________ d. After how many days will 95% of the chromium-51 have decayed away? ____________

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milcah answered 2 years ago

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