Nina has some nickles and 9 pennies in her pocket her friend Maurice has twice as many nickles as Nina together their coins are
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Using an exponential function, it is found that the half-life of the substance is of 5.23 units of time.
<h3>What is the exponential function for the amount of a substance?</h3>The function is given by:
In which:
- A(0) is the initial value.
- k is the exponential decay rate.
The parameters are given by:
A(0) = 48, k = 0.1325.
Hence the equation is:
The half-life is the amount of time for which A(t) = 0.5A(0) = 24, hence:
t = 5.23.
More can be learned about exponential functions at brainly.com/question/25537936
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