![subject](/tpl/images/cats/mat.png)
Mathematics, 04.08.2019 00:10 ajsoccer1705
The half-life of a radioactive substance is 14 days. after 4 days a sample of the substance has been reduced to a mass of 4 mg.
what was the initial mass in mg) of the sample?
round your answer to 2 decimal places as need.
using your answer from above, after how many days will there only be 0.5 mg of substance left?
round your answer to 2 decimal places as needed.
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/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 17:40
Which number produces a rationale number when multiplied by 1/5
Answers: 1
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 03:00
What is the slope-intercept form for each equation in this system? compare the slopes and y-intercepts to describe the graph of the system. 3x - 4y = 28 4x + 10y = 20
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 04:30
In cents, what is the least total amount that cannot be obtained by using a combination of fewer than eight coins from a collection of pennies, nickels, dimes and quarters?
Answers: 2
You know the right answer?
The half-life of a radioactive substance is 14 days. after 4 days a sample of the substance has been...
Questions
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 28.04.2021 22:30
![question](/tpl/images/cats/mat.png)
Mathematics, 28.04.2021 22:30
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 28.04.2021 22:30
![question](/tpl/images/cats/en.png)
English, 28.04.2021 22:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 28.04.2021 22:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.04.2021 22:30
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.04.2021 22:30
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/User.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.04.2021 22:30