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anonymous
 one year ago
A certain forest covers an area of 4200km2. Suppose that each year this area decreases by 5.5%. What will the area be after 12 years?
anonymous
 one year ago
A certain forest covers an area of 4200km2. Suppose that each year this area decreases by 5.5%. What will the area be after 12 years?

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campbell_st
 one year ago
Best ResponseYou've already chosen the best response.1are you working on sequences and series...?

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.1ok... makes it hard to explain, if you don't know. do you know how to use the compound interest formula..?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes but i need it to decrease and idk how to do that one @campbell_st

Mertsj
 one year ago
Best ResponseYou've already chosen the best response.0https://answers.yahoo.com/question/index?qid=20110221061524AAmXzyY

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.1ok... so the compound interest formula can be converted to a depreciation formula by changing the sign inside the brackets from + to 

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.1the formula I know is \[A = P(1 + \frac{r}{100})^n\] you can use \[A = P(1  \frac{r}{100})^n\]

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.1r = 5.5 P = 4200 and n = 12 hope it helps

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thank you i will try it @campbell_st

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i cant get it right @campbell_st

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.1why, what do you get as an answer..?
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