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sasho [114]
3 years ago
15

A geologist in South America discovers a bird skeleton that contains 77% of its original amount of C-14.

Mathematics
1 answer:
Ostrovityanka [42]3 years ago
5 0

Answer:

nightowl

N=N0e^-kt

N0 just means the amount of C-14 at time zero (when the bird dies), or the initial number of grams

Step-by-step explanation:

.57*N0 = N0*e^(-0.0001*t)

N0 cancels out

.57 =e^(-0.0001*t)

ln(.57) = -.0001*t

ln(.57) / -.0001=t

t = 5621.189

the bird's skeleton is 5621 years old

Report · 3/1/2016

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H(x) = (x2 − 49)(x + 4)
Maru [420]

Answer:

h(x) = x³ + 4x² - 49x - 196

Step-by-step explanation:

h(x) = (x² - 49)(x + 4) <== distribute

h(x) = x²(x) - 49(x) + x²(4) - 49(4)

h(x) = x³ - 49x + 4x² - 196 <== rewrite in standard form (descending degrees)

h(x) = x³ + 4x² - 49x - 196

Hope this helps!

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This works going both diagonals and simplifying both, but in that case it would be easier to try and simplify the fractions before cross multiplying them.

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