followill dating - Formula for carbon dating half life

Please provide any three of the following to calculate the fourth value.

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Carbon 14 is a common form of carbon which decays over time.

The amount of Carbon 14 contained in a preserved plant is modeled by the equation $$ f(t) = 10e^.

Plants take in carbon-14 through the process of photosynthesis.

Animals eat the plants so they too have carbon-14 in their tissues.

If possible, the ink should be tested, since a recent forgery would use recently-made ink.

The following tools can generate any one of the values from the other three in the half-life formula for a substance undergoing decay to decrease by half.

It does not matter as long as they are like measures.

The units of measure for time are dependent upon the unit of measure for the rate constant.

$$ Time in this equation is measured in years from the moment when the plant dies ($t = 0$) and the amount of Carbon 14 remaining in the preserved plant is measured in micrograms (a microgram is one millionth of a gram).

So when $t = 0$ the plant contains 10 micrograms of Carbon 14.

Note that the purpose of this task is algebraic in nature -- closely related tasks exist which approach similar problems from numerical or graphical stances.

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