A certain forest covers an area of 1600 km 2. Suppose that each year this area decreases by 5.25 %. What will the area be after 5 years?

Use the calculator provided and round your answer to the nearest square kilometer.

For this case we can model the problem with the following exponential equation:

A (t) = 1600 * (0.9475) ^ t

Where,

t: time in years

Substituting for t = 5 years we have:

A (5) = 1600 * (0.9475) ^ 5

A (5) = 1221.844887

round to the nearest square kilometer:

A (5) = 1222 km ^ 2

Answer:

the area after 5 years will be:

A (5) = 1222 km ^ 2