A bacteria culture begins with 13 bacteria which triple in amount at the end of every hour. How many bacteria are grown during the 10th hour?

asked Oct 26, 2020 233k views

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4 votes

Answer:

255,879

Geometric Sequence Formula

$a_n = a1r^((n-1))\\\\a_1 :13\\\\r:3\\\\n:10\\$

Steps:

$a_1_0=13 (3)^((10-1))\\\\a_1_0=13(3)^((9))\\\\a_1_0=(13)19683\\\\a_1_0=255,879$

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