Mathematics, 01.08.2021 21:40 mistycascaden
Mộ người đi xe máy với vận tốc 30km/giờ thì sau 3 giờ 30 phút sẽ đi hết quãng đường AB. Nếu người đó đi ô tô với vận tốc 42km/giờ thì mất bao lâu để đi quãng đường AB
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The biologist has a second culture to examine. she knows that the population of the culture doubles every 15 minutes. after 1 hour and 15 minutes, her assistant found that 80,000 bacteria were present. a) what was the size of the initial population? b) predict the size of the culture at t=3 hours. what was the size of the population at 40 minutes? explain and justify your answers. c) create a graph of the population as a function of time. find an equation that can be used to predict the size of the population at any time t. d) examine the rate at which the bacteria culture is growing. how fast is the culture growing after 1 hour? after 1.5 hours? after 2 hours? use a time interval of h = 0.01 hours to estimate these rates. interpret these rates in terms of the context of the problem situation. how do these three rates compare?
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Mộ người đi xe máy với vận tốc 30km/giờ thì sau 3 giờ 30 phút sẽ đi hết quãng đường AB. Nếu người đó...
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