The half-life of a certain radioactive material is 85 days. An initial amount of the material has a mass of 801 kg. Write an exponential function that models the decay of this material. Find how much radioactive material remains after 10 days.
Round your answer to the nearest thousandth.

Question

The half-life of a certain radioactive material is 85 days. An initial amount of the material has a mass of 801 kg. Write an exponential function that models the decay of this material. Find how much radioactive material remains after 10 days.
 Round your answer to the nearest thousandth.

anonymous · Answer

$$801\times (\frac{1}{2})^{\frac{t}{85}}$$

anonymous · Answer

replace t by 10 and use a calculator to get your answer