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the number of bacteria in a sample after x days is represented using the equation b=50,000(1.05)^(-x). by what approximate percent does the population change per day?a.4.8% decreaseb.5.0% increasec.95.
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Apr 22, 2017
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the number of bacteria in a sample after x days is represented using the equation
. by what approximate percent does the population change per day?a.4.8% decreaseb.5.0% increasec.95.2% decreased.105.0% increase
Mathematics
high-school
Dhrm
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the number of bacteria decreased 4.8%
Masty
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Apr 23, 2017
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initial, x = 0, b = 50000
day 1, x = 1, b = 50000 (1.05)^-1
day 2, x = 2, b = 50000 (1.05) =^-2
day 2 / day 1 = 1.05^-2 / 1.05^-1 = 1.05^-1 = 0.952
Which means that the number of bacteria decreased 4.8%
ThilankaD
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Apr 26, 2017
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