Question

The radioactive isotope thorium 234 has a half-life of approximately 578 hours. If a sample has...

The radioactive isotope thorium 234 has a half-life of approximately 578 hours.

If a sample has an initial mass of 64 mg, a function that models the mass in mg after t hours is a(t) =  

The initial mass will decay to 12 mg after ______ hours

Radioactive decay equation:

a(t) = a0⋅2 ^ (−t / h)

a0 = starting amount

a(t) = amount after t hours

h = half life in hours

Math   Precalculus   
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