919,827 to the nearest 1000, 100, and 100

Mathematics

1 answer:

OverLord2011 [107]3 years ago

8 0

nearest 1000: 920,000

nearest 100: 919,800

nearest 10 (you said 100 but I think you mean 10): 919,830

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

lidiya [134]

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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3 years ago

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Vikentia [17]

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Now, divide this by $0.10.
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Hope this helps! :)

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3 years ago

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Archy [21]

This is what I got. Good luck!