23-10-2020
Mathematics

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The decay rate (k) is 2.2% per year = -0.022

The half life is ___ years.

The decay rate k is 22 per year 0022 The half life is years class=

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23-10-2020

Answer:

31.5 years.

Step-by-step explanation:

Half life is given by [tex]= -\frac{ln(2)}{k}[/tex]. Where we use the natural logarithm. Plugging in a value of [tex]k = -0.022[/tex] we get: 31.5 years for the half life.

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