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OpenStudy (anonymous):
A population of bacteria is modeled by the exponential function P(t) = 45 x 2^(t/3) where t is in days. To the nearest day, when will the population reach 400?
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OpenStudy (anonymous):
it's means that P(t)=400 then: 400=45 * 2^(t/3) 2^(t/3)=400/45=80/9 (t/3) ln2 = 80/9 t=80/(3ln2) use calculator to get your answer :)
OpenStudy (anonymous):
Thank you
OpenStudy (anonymous):
welcome!
OpenStudy (anonymous):
Hey can you see if you can help me in this too...
OpenStudy (anonymous):
http://openstudy.com/groups/mathematics#/groups/mathematics/updates/4e0cc35d0b8bd74af49df6fe
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OpenStudy (anonymous):
give me 10 min - I need to finish other problem first
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