![subject](/tpl/images/cats/mat.png)
Mathematics, 02.08.2019 06:30 ashah1260
New type of pump can drain a certain pool in 5 hours. an older pump can drain the pool in 15 hours. how long will it take both pumps working together to drain the pool?
![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 17:30
Select the correct answer from the drop-down menu. subtracting 3xy^2 from 8xy^2 gives the same result as the expression. [tex]3xy ^{2} - 8xy ^{2} [/tex][tex] { - 7xy}^{2} - {2xy}^{2} [/tex][tex] {7xy}^{2} - {2xy}^{2} [/tex]
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:20
The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:00
The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:40
Atransformation t : (x,y) (x-5,y +3) the image of a(2,-1) is
Answers: 1
You know the right answer?
New type of pump can drain a certain pool in 5 hours. an older pump can drain the pool in 15 hours....
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 30.07.2020 08:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 30.07.2020 08:01
![question](/tpl/images/cats/mat.png)
Mathematics, 30.07.2020 08:01
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 30.07.2020 08:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 30.07.2020 08:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 30.07.2020 08:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 30.07.2020 08:01
![question](/tpl/images/cats/mat.png)
Mathematics, 30.07.2020 08:01
![question](/tpl/images/cats/mat.png)
Mathematics, 30.07.2020 08:01
![question](/tpl/images/cats/mat.png)
Mathematics, 30.07.2020 08:01
![question](/tpl/images/cats/himiya.png)
Chemistry, 30.07.2020 08:01
![question](/tpl/images/cats/istoriya.png)