Strontium-90 has a half-life of 29 years. Given that you begin with a 24 mg sample, determine a model that represents the amount of the sample still remaining after 64 years

Answer 1

The half-life formula is:

A(t) = A₀ (1/2)^t/h

Where:

1. A is the amount left after t years
2. A₀ is the starting amount = 24 mg
3. t is years
4. h is the half-life period = 29 years

A(t) = 24 (1/2)^t/29

For t = 64 years:

A(64) = ?