![subject](/tpl/images/cats/mat.png)
Mathematics, 25.05.2021 03:30 katyrb02
En una prueba de duración para determinar la vida útil de un nuevo tipo de lámpara lanzada al mercado, los datos de la muestra se distribuyeron de manera casi normal. Se calculó una vida útil
promedio de 7000 hrs. y una desviación de 520 hrs. Halla el porcentaje de lámparas que tendrán
una vida útil
a) entre la media y 7600hrs.
b)entre 6500 hrs y 7600 hrs.
c) mas de 7600
![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 14:30
Jack lives on a farm and has a large backyard. the area of his rectangular backyard is of a square mile. if the width of the yard is of a mile, what fraction of a mile is the length of the rectangular backyard?
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:00
The distributive property allows you to say that 3(x − 1) = 3x −
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:00
Graph the linear function using the slooe and y intercept
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:30
At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?
Answers: 2
You know the right answer?
En una prueba de duración para determinar la vida útil de un nuevo tipo de lámpara lanzada al mercad...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 01.09.2021 23:50
![question](/tpl/images/cats/mat.png)
Mathematics, 01.09.2021 23:50
![question](/tpl/images/cats/User.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.09.2021 23:50
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 01.09.2021 23:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 01.09.2021 23:50
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.09.2021 23:50
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.09.2021 23:50
![question](/tpl/images/cats/biologiya.png)
Biology, 01.09.2021 23:50
![question](/tpl/images/cats/pravo.png)
Law, 01.09.2021 23:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 01.09.2021 23:50
![question](/tpl/images/cats/mat.png)
Mathematics, 01.09.2021 23:50