AM-1277
Exponential and logarithmic models
A Math · Secondary 4 · Hard · Exponential and logarithmic models
The mass of a radioactive sample is modelled by
where is in grams and is the time in years.
Find the time when the mass is g. Give your answer correct to 3 significant figures.
where is in grams and is the time in years.
Find the time when the mass is g. Give your answer correct to 3 significant figures.
- 5.49
- 2.20
- 3.66
- 10.98
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