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Grade 11 Exponents CCSS: HSF-LE.B.5
A scientist has a 200-gram sample of Iodine-131, which has a half-life of 8 days. Which function models the mass of the sample remaining after t days?
- [math]M(t) = 200(0.5^(8t))[/math]
- [math]M(t) = 200(0.5^(t/8))[/math]
- [math] M(t) = 200 − 8t[/math]
- [math]M(t) = 200(8^(t/2))[/math]
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