Respuesta :

Susurrus

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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