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The population of rabbits on an island is growing exponentially. In the year 1992, the population of rabbits was 810, and by 1997 the population had grown to 930. Predict the population of rabbits in the year 2004, to the nearest whole number.

Question

The population of rabbits on an island is growing exponentially. In the year 1992, the population of rabbits was 810, and by 1997 the population had grown to 930. Predict the population of rabbits in the year 2004, to the nearest whole number.

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Solution

To solve this problem, we need to use the formula for exponential growth, which is:

P = P0 * e^(rt)

where: P is the future population, P0 is the initial population, r is the rate of growth, and t is the time.

First, we need to find the rate of growth (r). We know the population in 1992 (P0 = 810) and in 1997 (P = 930), and the time between these years (t = 1997 - 1992 = 5 years). We can plug these values into the formula and solve for r:

930 = 810 * e^(5r)

To isolate r, we first divide both sides by 810:

930/810 = e^(5r)

Then take the natural logarithm (ln) of both sides:

ln(930/810) = 5r

Finally, solve for r:

r = ln(930/810) / 5

Now that we have r, we can predict the population in 2004. The time from 1992 to 2004 is t = 2004 - 1992 = 12 years. Plug P0 = 810, r, and t = 12 into the formula and solve for P:

P = 810 * e^(r*12)

Round P to the nearest whole number to get the predicted population in 2004.

This problem has been solved

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