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Corona Virus 2019 infection is a spreading fast worldwide. The number of people infect P(x) = the virus each day is given by the function *+3, OS X S 10 where x is the nu days, and P(x) is the number of people infected (in thousands). a.) How many people are infected on the 7th day? b.) At what day the number of infected will be 50 (in thousands)?​

Sagot :

Answer:

How far and how fast will the Covid-19 pandemic spread? That question is on everyone’s mind, and it’s something most of us don’t have a good intuition for. The problem is that our human brains tend to extrapolate in a straight line from recent experience, but infectious diseases spread exponentially.

On Monday, March 15, the US had about 4,000 confirmed cases. You might have said "Hey, that’s a tiny fraction of the country’s population. What’s all the fuss?" By Wednesday it had grown to around 8,000. So then you might think the total will grow by 4,000 every two days. That would be wrong; that’s linear thinking. It's much worse than that.

Explanation:

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