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AnnZ [28]
3 years ago
8

Instructions:Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Th

e native bird population in a city is decreasing at a rate of 10% per year due to industrialization of the area by humans. The population of native birds was 14,000 before the decrease began. Complete the recursively-defined function to describe this situation. f(1) = f(n) = f(n - 1) · , for n ≥ 2 After 3 years, birds will remain.
Mathematics
2 answers:
JulsSmile [24]3 years ago
7 0

thats only 2 years three years would be 10,206

Amiraneli [1.4K]3 years ago
6 0
Given that t<span>he native bird population in a city is decreasing at a rate of 10% per year due to industrialization of the area by humans. The population of native birds was 14,000 before the decrease began.

Thus f(1) = 14,000 and

f(n) = (1 - 0.1)f(n - 1) = 0.9f(n - 1)

Thus,

f(2) = 0.9f(1) = 0.9(14,000) = 12,600
f(3) = 0.9f(2) = 0.9(12,600) = 11,340

Therefore, After 3 years, 11,340 birds will remaiin.
</span>
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Answer:

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In this problem we have

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For y=0

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m=50\ pages/hour

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y=-50x+225 ----> the slope is negative because is a decreasing function

For y=0

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x=4.5\ hours --- Molly's time to finish reading the book

To find out how many more minutes than Xanthia would it take for Molly to finish reading the book, subtract Xanthia's time from Molly's time

4.5\ h-2.25\ h=2.25\ h

Convert to minutes

Multiply by 60

2.25\ h=2.25(60)=135\ minutes

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