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Harman [31]
3 years ago
10

Between the years of 1947 and 1956, earthenware jars containing what are known as the Dead Sea Scrolls were found in caves along

the coast of
Jerusalem in the Dead Sea. Upon radiometric testing, it was found that the scrolls were wrapped in material that contained about 79 percent of

the original carbon-14. Archeologists estimated that the scrolls are about 1,900 years old. Are they right?

Question 1

Using the half-life of carbon-14 (5,730 years), prove or disprove this estimate age. Describe how you are testing this hypothesis.
Mathematics
1 answer:
lidiya [134]3 years ago
8 0

Answer:

They are right, the time calculated using the exponential decay equation is 1948.6 years.

Step-by-step explanation:

The time can be calculated using the exponential decay equation:

N_{(t)} = N_{0}e^{-\lambda t}     (1)

<u>Where</u>:

N(t): is the quantity of C-14 at time t

N₀: is the initial quantity of C-14

λ: is the decay constant  

The decay constant is:

\lambda = \frac{ln(2)}{t_{1/2}}   (2)    

By entering equation (2) into (1) and solving for t, we have:

t = \frac{t_{1/2}*ln(N_{t}/N_{0})}{ln(2)} = \frac{5730*ln(0.79)}{ln(2)} = 1948.6 y

Therefore, the time of the scrolls estimated by the archeologists is right, since the time calculated using the exponential decay equation is 1948.6 years.      

I hope it helps you!

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4 0
3 years ago
Consider the geometric sequence below.
vladimir1956 [14]

Answer:

f(1) = 8

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Step-by-step explanation:

f(1) means the firs term in a sequence.

In the function f(n), represented by 8, 4, 2, 1, .., the first term is 8.

f(1) = 8

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We can use any two of the given terms in the sequence EXCEPT for 8 because it is the first term and does not have a term before it.

I choose to divide the second term by the first term:

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3 years ago
The nation of Finlandia has 120,000 people. Of these, 20,000 are children under 16, 72,000 have jobs, 8,000 don't have jobs but
stepan [7]

Answer: labor force participation rate  =60%

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Step-by-step explanation:

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i.e. \text{labor force participation rate}= \dfrac{72000}{120000}

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The unemployment rate is computed as:

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Hence, labor force participation rate  =60%

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Step-by-step explanation:

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tankabanditka [31]

Answer:

yes, the given relation is a function.

Step-by-step explanation:

The given relation is

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