Can someone please explain this step by step.
...
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:00
The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:30
Three people are traveling and need to exchange the currency of their native country for the currency of the country they are visiting. drag each exchange to the category that shows the ratio of currencies in that exchange.
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:00
Manuela claims that and are congruent. which statement best describes her claim? she is incorrect because the segments do not have the same orientation. she is incorrect because the segments do not have the same length. she is correct because the segments have the same length. she is correct because the segments have the same orientation.
Answers: 1
You know the right answer?
Questions
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 28.03.2020 17:22
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 28.03.2020 17:25
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 28.03.2020 17:27
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.03.2020 17:30
![question](/tpl/images/cats/mat.png)
Mathematics, 28.03.2020 17:30
![question](/tpl/images/cats/himiya.png)
Chemistry, 28.03.2020 17:30
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 28.03.2020 17:37
![question](/tpl/images/cats/mat.png)
Mathematics, 28.03.2020 17:37
![question](/tpl/images/cats/mat.png)
Mathematics, 28.03.2020 17:37
![question](/tpl/images/cats/mat.png)
Mathematics, 28.03.2020 17:37
![question](/tpl/images/cats/mat.png)
Mathematics, 28.03.2020 17:37