Please help me please!
...
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 13:30
The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.
Answers: 3
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:00
An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.
Answers: 1
![question](/tpl/images/cats/mat.png)
You know the right answer?
Questions
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/User.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.09.2019 18:10
![question](/tpl/images/cats/mat.png)
Mathematics, 27.09.2019 18:10
![question](/tpl/images/cats/istoriya.png)
History, 27.09.2019 18:10
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 27.09.2019 18:10
![question](/tpl/images/cats/himiya.png)
Chemistry, 27.09.2019 18:10
![question](/tpl/images/cats/mat.png)
Mathematics, 27.09.2019 18:10
![question](/tpl/images/cats/mat.png)
Mathematics, 27.09.2019 18:10
![question](/tpl/images/cats/istoriya.png)
History, 27.09.2019 18:10
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)