Homework Help: precal

Posted by Anonymous on Thursday, September 2, 2010 at 10:41pm.

A petri dish contains only two bacteria. The bacteria divide every half hour. How many bacteria will exist after 3 hours?

I thought it'd be 12, but apparently not.

precal - Ms. Sue, Thursday, September 2, 2010 at 10:46pm
1st hour: 2, 4

2nd hour: 8, 16

3rd hour: 32, 64

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