Respuesta :

Answer:

Let x = number of days

f(x) = number of algae cells

f(x) = 2,000(5^x)

The common ratio of this geometric sequence is 10,000/2,000 = 5.

2,000(5^x) = 24,000,000

5^x = 12,000

x ln 5 = ln 12,000

x = ln 12,000/ln 5 = about 5.84 days

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