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enyata [817]
3 years ago
7

Translate the phrase to an algebraic expression.

Mathematics
2 answers:
mario62 [17]3 years ago
8 0

Answer:

A

Step-by-step explanation:

If it’s 80 less than, your subtracting and then 4 times a number is 4x so your answer is 4x-80

Allisa [31]3 years ago
7 0

Answer:

a

Step-by-step explanation:

hmu

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Step-by-step explanation:

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3 years ago
A radioactive substance has a continuous decay rate of 0.056 per minute. How many grams of a 120 gram sample will remain radioac
sammy [17]

Answer:

The mass of the radioactive sample after 40 minutes is 12.8 g.

Step-by-step explanation:

The mass of the sample can be found by using the exponential decay equation:

N_{t} = N_{0}e^{-\lambda t}

Where:

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t = 40 min

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Hence, the mass of the sample after 40 min is:

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Therefore, the mass of the radioactive sample after 40 minutes is 12.8 g.

I hope it helps you!

5 0
3 years ago
What is the average (or mean) of the following numbers: 12, 28, 15, 25, 20 *
Lerok [7]
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