![subject](/tpl/images/cats/mat.png)
Mathematics, 26.01.2020 10:31 kaliyaht01
An isotope of a radioactive element has half-life equal to 9 thousand years. imagine a sample that is so old that most of its radioactive atoms have decayed, leaving just 10 percent of the initial quantity of the isotope remaining. how old is the sample? (give your answer correct to at least one decimal place.)
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:30
What is not true about kl and mn? what is mn? (show your work)
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:30
The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28
Answers: 1
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 00:30
Graph a point. start at your origin, move left 10 units, and then move up three units which ordered pair is the point you graphed
Answers: 2
You know the right answer?
An isotope of a radioactive element has half-life equal to 9 thousand years. imagine a sample that i...
Questions
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 16.07.2020 14:01
![question](/tpl/images/cats/en.png)
English, 16.07.2020 14:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.07.2020 14:01
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
English, 16.07.2020 14:01
![question](/tpl/images/cats/biologiya.png)
Biology, 16.07.2020 14:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.07.2020 14:01
![question](/tpl/images/cats/mat.png)
Mathematics, 16.07.2020 14:01
![question](/tpl/images/cats/himiya.png)
Chemistry, 16.07.2020 14:01
![question](/tpl/images/cats/biologiya.png)
Biology, 16.07.2020 14:01
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.07.2020 14:01
![question](/tpl/images/cats/mat.png)
Mathematics, 16.07.2020 14:01
![question](/tpl/images/cats/himiya.png)
Chemistry, 16.07.2020 14:01