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anonymous

  • one year ago

Barry has been watching the geese that live in his neighborhood. The number of geese changes each week. n f(n) 1 56 2 28 3 14 4 7 Which function best shows the relationship between n and f(n)? f(n) = 28(0.5)n f(n) = 56(0.5)n-1 f(n) = 56(0.5)n f(n) = 112(0.5)n-1

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  1. anonymous
    • one year ago
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    the first one is 2

  2. dan815
    • one year ago
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    barry needs to get a life lol

  3. anonymous
    • one year ago
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    haha

  4. dan815
    • one year ago
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    can you see how the geese keep getting halved everyday

  5. anonymous
    • one year ago
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    its only one question so the answer is b?

  6. anonymous
    • one year ago
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    yes its B

  7. anonymous
    • one year ago
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    EXPLAIN

  8. anonymous
    • one year ago
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    ok wait a sec

  9. taramgrant0543664
    • one year ago
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    Doesn't have to be c?

  10. anonymous
    • one year ago
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    yeah im leaning toward c but im not sure yet

  11. taramgrant0543664
    • one year ago
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    I am assuming that n-1 should actually be in brackets like (n-1) then when f(1) then you get 0 where if you use c then it comes out as 56

  12. anonymous
    • one year ago
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    slade prolly got the answer from someone else thats the only thing i can think

  13. anonymous
    • one year ago
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    yes i should be in brackets so C is true

  14. anonymous
    • one year ago
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    no it didnt have brackets so i got confused and picked the next one that i thout

  15. ybarrap
    • one year ago
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    $$ f(1)=56\\ f(2)=28=\cfrac{f(1)}{2}\\\\ f(3)=14=\cfrac{f(2)}{2}=\cfrac{f(1)}{2^2}\\ f(4)=7=\cfrac{f(3)}{2}=\cfrac{f(1)}{2^3}\\ \cdots\\ f(n)=\cfrac{f(1)}{2^{(n-1)}}=\cfrac{56}{2^{(n-1)}}=56\left(\cfrac{1}{2}\right)^{n-1} $$ Does this make sense?

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