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ACT Aspire Math: Finding Cube Roots 5 Views
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Description:
A strain of bacteria multiplies by a factor of x every two milliseconds.
If there are 64 bacteria after six milliseconds and one bacterium was initially present, what is x?
Transcript
- 00:03
Okay Next matthew Drill for you Aspiring people A strain
- 00:08
of e Coli bacteria multiplied by a factor of ex
- 00:11
every two milliseconds If there are sixty four bacteria after
- 00:15
six milliseconds and one bacterium was initially present what is
- 00:20
x Well e Coli has a bad rap but apparently
Full Transcript
- 00:27
there are quite a few good guys in this gang
- 00:30
of bacteria that or they've hired an excellent pr firm
- 00:33
to revamp their image If the strain of bacteria multiplies
- 00:36
every two milliseconds and six milliseconds passed then the bacteria
- 00:41
has multiplied three times right So that would be x
- 00:44
cubed In other words we're looking at the cube root
- 00:47
of sixty For which four times for sixteen times on
- 00:51
before is sixty four Yeah we're looking at a strain
- 00:53
that multiplies by four every two milliseconds We're going to 00:00:58.423 --> [endTime] go wash our hands Yeah answer is b
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