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LekaFEV [45]
2 years ago
8

Helpppppp fastttt ASAP

Mathematics
1 answer:
Xelga [282]2 years ago
6 0

Answer:

It is an octogan and it isn't regular, you are correct.

Step-by-step explanation:

Normal octagons look like a stop sign. This one looks like a star.

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The function f(x) = 300(0.5)x/100 models the amount in pounds of a particular radioactive material stored in a concrete vault, w
allsm [11]

The amount of the radioactive material in the vault after 140 years is 210 pounds

<h3>How to determine the amount</h3>

We have that the function is given as a model;

f(x) = 300(0.5)x/100

Where

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  • f(x) is the amount  in pounds

Let's substitute the value of 'x' in the model

f(x) = 300(0.5)x/100

f(x) = \frac{300(0.5) * 140}{100}

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This mean that the function of 149 years would give an amount of 210 pounds rounded up to the nearest whole number.

Thus, the amount of the radioactive material in the vault after 140 years is 210 pounds

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2 years ago
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Step-by-step explanation:

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