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3 years ago

10

A fishing lake was stocked with 350 trout. each year,the population decreases by 14. the population of trout in the lake after x

years is repres ented by the function f(x)= 350-14x

1 answer:

Lubov Fominskaja [6]3 years ago

7 0

Check the attached file for the solution.

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$x^2+\frac{8}{10}-x=\frac{10}{2}\\
x^2-x+\frac{8}{10}-\frac{10}{2}=0\\
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$
$x=\frac{1}{2}+\frac{\sqrt{89}}{2\sqrt{5}} \vee x=\frac{1}{2}-\frac{\sqrt{89}}{2\sqrt5}}\\
x=\frac{1}{2}+\frac{\sqrt{445}}{10} \vee x=\frac{1}{2}-\frac{\sqrt{445}}{10}}\\
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