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kirill [66]
3 years ago
10

Starting with 195 grams of a radioactive isotope, how much will be left after 3 half-lives?

Mathematics
1 answer:
MrMuchimi3 years ago
4 0
After one half-life:  \frac{1}{2}\times 195=97.5 grams.

After two half-lives:  \frac{1}{2} \times 97.5=48.75 grams.

After three half-lives: \frac{1}{2} \times 48.75=24.375 grams.
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Show that 7x + 1 is equivalence to 2(2x - 1) + 3(x + 1)​
marissa [1.9K]
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Which expression is equivalent to (x^4/3 x^2/3)^1/3?
KATRIN_1 [288]

Answer: x^{\frac{2}{3} }

Step-by-step explanation:

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<em />

Let's apply it!

First, let's simplify what's inside the parenthesis.

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Hope this helps! :^)

7 0
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Answer:

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So yes 25 months is correct

7 0
3 years ago
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