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TEA [102]
3 years ago
9

If 96 grams of carbon-14 are originally present in a fossilized plant at the present time, how much will remain after 17,000 yea

rs? (The half-life of Carbon-14 is 5730 years.) Use the exponential decay model for Carbon-14: A=Aoe^(-.000121)t
Mathematics
1 answer:
Elden [556K]3 years ago
5 0
Well, you already have the decay model, so just plug that in

\bf A=96e^{-0.000121\cdot 17000}\implies A=96e^{-2.057}
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It would be 20 so you had it right

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3 years ago
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Which of the following has a graph that is a stight line?
Y_Kistochka [10]
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6 0
3 years ago
How much water must be evaporated from 130 gallons of a 9% acid solution to make a 12% acid solution?
Bad White [126]

Answer: 33 gallons

Step-by-step explanation:

We initially have 130 gallons of a 9\% acid solution and we need to change it to a 12\% acid solution, and for that it is necessary to evaporate n gallons of water.

So, this situation can be mathemtically expressed as follows:

(130)(9\%)=(130-n)(12\%)

Then:

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Isolating n:

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6 0
3 years ago
Tyger is trying to eat less sugar in his diet.He reduces his sugar intake from 15 spoons a day to 9 1/2 spoons a day. What is th
seraphim [82]

Answer:the percentage decrease is 36.67%

Step-by-step explanation:

Initial amount of sugar in his diet is 15 spoons in a day. Currently, the amount of sugar in his diet is 9 1/2 spoons in a day. Converting to decimal, it becomes 9.5 spoon in a day. The amount by which he reduced his sugar intake is 15 - 9.5 = 5.5 spoons.

Percentage decrease would be expressed as

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It becomes

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3 years ago
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