Question

A sample of radioactive trillium disintegrates to m=200e^-0.0577t, where m is the mass (in grams) of remaining radioactive tritium after t years. Find the initial amount of radioactive tritium.

Answer 1

• 200 g

Explanation:

The initial amount is the constant in the given equation:

• m = 200 g

It can also be found by substitution of t with 0 in the given equation. We know any exponent with the power of zero equals to 1.