Question

A certain forest covers an area of 2600 km 2 suppose that each year this area decreases by 9% . What will the area be after 5 years ?

Answer 1

Final answer is approx 1622.48 square kilometers.

Explanation:

Given that a certain forest covers an area of 2600 km 2 suppose that each year this area decreases by 9% . Now we need to find about what will the area be after 5 years.

So we need to plug these values into decay formula which is given by:

`A=P(1-r)^t`

Where P=2600

r= rate = 9%= 0.09

t=time = 5 years

Plug these values into above formula, we get:

`A=2600(1-0.09)^5`

`A=2600(0.91)^5`

`A=2600(0.6240321451)`

`A=1622.48357726`

Hence final answer is approx 1622.48 square kilometers.