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lilavasa [31]
2 years ago
7

The population of a Midwestern city decays exponentially. If the population decreased from 900,000 to 800,000 from 2003 to 2005,

what will be the population in 2008?
Mathematics
1 answer:
olga55 [171]2 years ago
4 0
Hello.<span><span>   </span><span>
<span><span>
-------
Let 2003 be the zero year; then 2005 is the three year, and 2008 the 5 year.
---------------
P = ab^x
---
P(3) = ab^3 = 800000
P(0) = ab^0 = 900000

---
a = 900000
Solve for "b"::
b^3 = 8/9 
b = 2/cbrt(9) 
----
Equation::
P(x) = 900000^x
----
Ans: P(5) = 900000


Have a nice day</span></span></span></span>
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