![subject](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 14:33 bluebug7316
The amount of time a certain brand of light bulb lasts is normally distribued with a mean of 1400 hours and a standard deviation of 55 hours. Using the empirical rule, what percentage of light bulbs last between 1345 hours and 1455 hours?
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:30
Matt had 5 library books. he checked out 1 additional book every week without retuening any books. whats the matching equation
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 00:50
Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 02:20
What are the solutions of the equation x4 – 5x2 – 14 = 0? use factoring to solve. someone !
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 02:30
How much is $1200 worth at the end of1 year,if the interest rate is 5.5% is compounded quarterly.
Answers: 1
You know the right answer?
The amount of time a certain brand of light bulb lasts is normally distribued with a mean of 1400 ho...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.01.2020 10:31
![question](/tpl/images/cats/mat.png)
Mathematics, 06.01.2020 10:31
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
History, 06.01.2020 10:31
![question](/tpl/images/cats/biologiya.png)
Biology, 06.01.2020 10:31
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.01.2020 10:31
![question](/tpl/images/cats/mat.png)
Mathematics, 06.01.2020 10:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 06.01.2020 10:31
![question](/tpl/images/cats/ekonomika.png)
Business, 06.01.2020 10:31