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About 92 days are taken for 90 % of the material to <em>decay</em>.
The mass of radioisotopes (), measured in milligrams, decreases exponentially in time (
), measured in days. The model that represents such decrease is described below:
(1)
Where:
- Initial mass, in milligrams.
- Current mass, in milligrams.
- Time constant, in days.
In addition, the time constant is defined in terms of half-life (), in days:
(2)
If we know that ,
and
, then the time required for decaying is:
About 92 days are taken for 90 % of the material to <em>decay</em>.
We kindly invite to check this question on half-life: brainly.com/question/24710827
Answer:
1376 dogs
Step-by-step explanation:
This is just a multiplication problem if we convert the words to mathematical formulas.
There are 86 teams: . Each team has 16 dogs:
.
So, we can add up 16 to itself 86 times, which is just 16 * 86 = 1376
Thus, the answer is 1376 dogs.
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