The half-life of a certain radioactive material is 38 days. An initial amount of the material has a mass of 497 kg. Write an exponential function that models the decay of this material. Find how much radioactive material remains after 4 days. Round your answer to the nearest thousandth.

Question

anonymous · Answer

A. 462.029 kg
B. 0.087 kg
C. 1.040 kg
D. 0 kg

anonymous · Answer

I might be able to help you if you provide me with a formula.

anonymous · Answer

I could also google it. But Maybe you have it in your notes or something

anonymous · Answer

I found it. Half Life equation: Final amount = Initial Amount * (1/2)^n ( n = number of half lives) But I also see you have to use logs and I'm not very good with those.