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#37084

data analysis

medium

75 sec

A biologist is studying a population of bacteria in a petri dish. The graph shows the estimated number of bacteria, $N$ , after $t$ hours. To the nearest whole number, what was the initial number of bacteria in the petri dish?

(Assume the graph shows an exponential growth curve starting at (0,500) and increasing rapidly.)

• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-).
• Fractions must be in lowest terms.
• Mixed numbers must be converted to improper fractions.