Mathematics
arielnorman
24

The bird population on an island is declining at a rate of 1.7% per year. The population was 4600 in the year 2009. Which answer is the best prediction of the population in the year 2015? 4080 4010 4150 4120

+2
(1) Answers
nana8

Here is the answer:  A reduction of 1.7% will mean that 98.3% will remain.  so, reduction factor of 0.983/year  => A(t) = A(0) x (0.983)^t  Then, after 6 years we have:  A(6) = 4600 x (0.983)⁶ => 4150  Therefore, the answer for this would be the third option. Hope this helps.

Add answer