![subject](/tpl/images/cats/mat.png)
Mathematics, 15.04.2020 02:31 devin030505
For a certain type of computers, the length of time between charges of the battery is normally distributed with a mean of 50 hours and a standard deviation of 15 hours. John owns one of these computers and wants to know the probability that the length of time will be between 50 and 70 hours.
A. 0.4082
B. 0.4025
C. 0.4213
D. 0.4156
![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)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:00
1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:00
If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:30
What is the least common multiple for 6 and 8? what is the least common multiple for 4 and 12 ? what is the least common multiple for 11 and 12? what is the least common multiple for 3 and 6?
Answers: 1
You know the right answer?
For a certain type of computers, the length of time between charges of the battery is normally distr...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 08.04.2020 21:41
![question](/tpl/images/cats/mat.png)
Mathematics, 08.04.2020 21:41
![question](/tpl/images/cats/mat.png)
Mathematics, 08.04.2020 21:42
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/fizika.png)
Physics, 08.04.2020 21:42
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
Business, 08.04.2020 21:42
![question](/tpl/images/cats/geografiya.png)
Geography, 08.04.2020 21:42
![question](/tpl/images/cats/fizika.png)
Physics, 08.04.2020 21:42
![question](/tpl/images/cats/mat.png)
Mathematics, 08.04.2020 21:42
![question](/tpl/images/cats/mat.png)
Mathematics, 08.04.2020 21:42
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 08.04.2020 21:42
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 08.04.2020 21:42
![question](/tpl/images/cats/fizika.png)
Physics, 08.04.2020 21:42
![question](/tpl/images/cats/geografiya.png)
Geography, 08.04.2020 21:42
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 08.04.2020 21:42