teller
  • teller
Can someone make sure I did this right? A certain forest covers an area of 4300km^2. Suppose that each year this area decreases by 7.75%. What will the area be after 15 years?Use the calculator provided and round your answer to the nearest square kilometer. p=4300km^2 r=0.075 t=15 F=430KM^2(1-0.0775)^15 = 128.22245212km2
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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triciaal
  • triciaal
typo 430 s/b 4300 I think right formula
teller
  • teller
they gave us the formula of f=p(1+r)^t or f=p(1-r)^t
teller
  • teller
from what I know I plugged it in right.

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triciaal
  • triciaal
I did not verify the calculation
phi
  • phi
tricaal is saying use 4300km^2. You used 430
teller
  • teller
Oh sorry
teller
  • teller
1282.22452118km2 ?
phi
  • phi
round your answer to the nearest square kilometer.
teller
  • teller
so would it be 1283?
triciaal
  • triciaal
no to round when less than 1/2 way to what you need you drop
teller
  • teller
Huh?
phi
  • phi
is 1282.2 closer to 1282 or 1283 ?
teller
  • teller
1282
triciaal
  • triciaal
here you have 1282.2 and you need whole number 1282 then 1283
teller
  • teller
so 1283?
phi
  • phi
the rule is if you have 1282.5 (5 or bigger in the 10ths place) round up otherwise, just drop the decimal yes 1282 is the rounded answer.
teller
  • teller
alright thank you
triciaal
  • triciaal
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