Question 306840
Plants, which get their carbon dioxide from the air, contain small amounts of carbon-14.
 Once a plant is cut it no longer forms Carbon-14 and in fact the amount present starts to decay.
 The half life for Carbon-14 is 5730 years. 
If a plant had 30 units of Carbon-14 in it when it was cut, find an equation
 that models the decay of Carbon-14 in this plant.
:
The half-life equation
A = Ao*2^(-t/h)
Where
A = resulting amt after t years
Ao = initial amt
t = time in yrs
h = half-life of the substance
:
A = 30*2^(-t/5730)