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What percentage of the bacteria will be alive

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Reference no: EM131566991

Question: When a colony of bacteria is subjected to strong ultraviolet light, they die as their DNA is destroyed. In a laboratory experiment it was found that the number of living bacteria decreased approximately exponentially with the length of time they were exposed to ultraviolet light. Suppose that 70.5% of the bacteria still survive after 7 seconds of exposure. What percentage will be alive after 30 seconds? How long does it take to kill 95% of the bacteria?

Reference no: EM131566991

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