Answer:
a)
b) The population increases 7.1% each year.
Step-by-step explanation:
The continuous population growth model is given by:
In which is the population after t years, is the initial population and r is the growth rate.
In this problem, we have that:
A population grows from its initial levelof 22,000 at a continuous growth rcte of 7.1% per year.
This means that
a) Write a function to model the population increase.
b) By what percent does the populaiion increase each year?
So the population increases 7.1% each year.
It's kind of like division and mutliplycation I guess
Answer:
323
Step-by-step explanation:
first of all we solve the bracket using bodmas then we multiply the thirty three by one one two then we multiply the minus sign by the answer we got earlier then we multiply the minus outside the whole bracket by the bracket then we add it to the number in front of the bracket
4k² + 17k + 7 = 3k
<u> - 3k - 3k</u>
4k² + 14k + 7 = 0
x = <u>-(14) +/- √((14)² - 4(4)(7))</u>
2(4)
x = <u>-14 +/- √(196 + 112)</u>
8
x = <u>-14 +/- √(308)
</u> 8<u>
</u>x = <u>-14 +/- 2√(77)
</u> 8<u>
</u>x = <u>-7 +/- √(77)
</u> 4
x = -1.75 +/- 0.25√(77)
x = -1.75 + 0.25√(77) ∨ x = -1.75 - 0.25√(77)
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