AM-395
Exponential and logarithmic models
A Math · Secondary 3 · Medium · Exponential and logarithmic models
The mass, in grams, of a radioactive substance after t minutes is modeled by
.
What is the mass of the substance after 20 minutes, correct to 3 significant figures?
.
What is the mass of the substance after 20 minutes, correct to 3 significant figures?
- 132 g
- 88.0 g
- 146 g
- 119 g
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