A certain forest covers an area of 4600km. Suppose that each year this area decreases by 7.75%. What will the area be after 13 years?
Use the calculator provided and round your answer to the nearest square kilometer.

Step-by-step explanation:

-We can use the exponential decay function to estimate the size after 13 years:

Where:

is the size after t years, t is the time, r is the rate of decay and the original size.

#We substitute and calculate as:

Hence, the forest covers after 13 years.

Exact Form:

3√3−3√155+12√333-3155+123

Decimal Form:

−34.57898412…