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Mathematics 7 Online
OpenStudy (anonymous):

Write an exponential function to model the situation then estimate the value of the function after 5 years. (to the nearest whole number). A population of 320 animals that decreases at an annual rate of 15%

OpenStudy (mathstudent55):

y = (1 + r)^t r is the rate expressed as a decimal. If it's an increase, r is positive. If it's a decrease, r is negative. t is time in years.

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