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hoa [83]
3 years ago
6

(4x+5)(x^2+2x+3) help?

Mathematics
1 answer:
Leya [2.2K]3 years ago
5 0
This is the right anwser

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A geologist in South America discovers a bird skeleton that contains 80% of its original amount of C-14. N0= initial amont of C-
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A geologist in South America discovers a bird skeleton that contains 80% of its original amount of C-14

We use formula N = N_oe^{-kt}

N0= initial amont of C-14 (at time t=0)

N= amount of C-14 at time t

t= time, in years

k= 0.0001

N is 80% of N0 that is N= 0.80N_o

N = N_oe^{-kt}

0.80N_o = N_oe^{-kt}

Divide both sides by N_o

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Take ln on both sides

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ln(0.8) = -0.0001t

Divide both sides by -0.001

t = 2231.435513

The age of the bird skeleton is 2231 years old




5 0
3 years ago
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