Hi everyone, I have a problem that I don't remember learning about in class. If anyone can help, it'd be well welcomed!

QUESTION:
If a certain nasty radioactive substance has a half-life of 311 years, what function describes the
amount remaining (as a function of time)?

Question

Hi everyone, I have a problem that I don't remember learning about in class. If anyone can help, it'd be well welcomed!

QUESTION:
If a certain nasty radioactive substance has a half-life of 311 years, what function describes the
amount remaining (as a function of time)?

anonymous · Answer

There is two ways to tackle this problem. One with calculus and one without calculus. Have you covered calculus/simple separable differential equations yet?

anonymous · Answer

@wakoff

anonymous · Answer

sorry went to get a drink

anonymous · Answer

actually know i'm currently in trig

anonymous · Answer

to be honest, i'm not sure what trig has to do with this but he did say something about limits . . . . which i didn't really understand.

mertsj · Answer

$$A=A _{0}(\frac{1}{2})^{\frac{t}{h}}$$

mertsj · Answer

A final amount
A_0= initial amount
t = amount of time that has elapsed
h = half-life