Answer:
85,524 bacteria
Explanation:
Given the population of bacteria modelled by the equation where;

P0 is the initial population
t is the time in hours
d is the doubling time
If the culture of bacteria has an initial population of 12000 bacteria, this means that;
at t = 0, P0 = 12000
substitute into the modelled function

If the population doubles every 6 hours
at t = 6, Pt = 24000


Next is to get the population of bacteria in the culture after 17 hours
at t = 17, Pt = ?

Hence the population of bacteria in the culture after 17 hours, to the nearest whole number is 85,524 bacteria