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Sagot :
Answer:
1000
Step-by-step explanation:
The population of the suburb after each decade d is given by the equation as follows :
[tex]P=4000\times 2^d[/tex]
We need to evaluate the expression for d = -2.
Put d = -2 in the above equation. So,
[tex]P=4000\times 2^{-2}\\\\=4000\times \dfrac{1}{2^2}\\\\=4000\times \dfrac{1}{4}\\\\=1000[/tex]
So, if d = -2, then the population of the suburb is equal to 1000.
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