Convert 12.4 pounds to ounces?
1 answer:
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Answer:
Cosine
Step-by-step explanation:
Cosine =
Cos 70 =
0.633 =
0.633 x 8 = x 8
5.064 = x
Answer:
This is a radioactive decay / half-life problem.
Initial amount of C 14 = 100% Present Amount = 57%
k = .0001 (that value should be negative)
Nt = No * e^ (k*t)
You need to solve that equation for "time" (equation attached)
time = natural log (Ending amount / Starting Amount) / k
time = natural log (57% / 100%) / -.0001
time = ln (.57) / -.0001
time = -.56211891815 / -.0001
time = 5,621.2 years (age of the bird skeleton)
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Step-by-step explanation:
