Answer:
Step-by-step explanation:
Decay is defined by the function as,
f(t) =
Here, r = rate of decay
t = duration of decay Or time (In years)
n = Number of times of decay in a year
Decay every 2 years over a period of t years,
f(t) =
=
Therefore, will be the answer.
Decay 2 times a year over a period of t years,
f(t) =
Therefore, will be the answer.
Decay once per year over a period of t years,
f(t) =
=
Therefore, will be the answer.