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bazaltina [42]
3 years ago
12

The mass of bacteria in a labaratory experiment increases exponentially by 22% each hour. The mass of bacteria was 8 micrograms

when the experiment began. You are interested in predicting how long it will take for the mass of bacteria to reach 100 micrograms.
Mathematics
1 answer:
den301095 [7]3 years ago
5 0

Answer:

The Answer is approximately 12.71 seconds.

Step-by-step explanation:

The form of the equation is:

f(x) = ab^x

Substitute:

f(x) = 8(1.22)^x

Solve for:

f(x) = 100

100 = 8(1.22)^x

100/8 = 1.22^x

12.5 = 1.22^x

1.22^x = 12.5

log(1.22^x) = log(12.5)

x * log(1.22) = log(12.5)

x * 0.0863 = 1.0969

x = 1.0969 / .0863 = 12.71 seconds, approximately

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Step-by-step explanation:

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2 c = 3      c = current speed = 1.5 m/hr

                         your speed =   5 - 1.5    (or  2 + 1.5)  =  3.5 m/hr

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2 years ago
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Illusion [34]
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daser333 [38]

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so, the common difference is 53.

now, subtract 53 from -13:

-13 - 53 = -66

5 0
2 years ago
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