Answer:
The word "ARRANGE" can be arranged in
2!×2!
7!
=
4
5040
=1260 ways.
For the two R's do occur together, let us make a group of R's taking from "ARRANGE" and permute them.
Then the number of ways =
2!
6!
=360.
The number ways to arrange "ARRANGE", where two "R's" will not occur together is =1260−360=900.
Also in the same way, the number of ways where two "A's" are together is 360.
The number of ways where two "A's" and two "R's" are together is 5!=120.
The number of ways where neither two "A's" nor two "R's" are together is =1260−(360+360)+120=660.
Step-by-step explanation:
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Answer:
-3
Step-by-step explanation:
Point A is half way between -17 and 5. This is span has a total distance of 17 + 5 = 22. Half way is 11 units from -17 or 5. So -17 + 11 = -6.
Point B is halfway between A at -6 and 0. This is a distance of 6. So halfway is 3 units away at -3.
Answer:
The median is: 9
The mode is: 9,10
The mean is: 8
Step-by-step explanation:
Hope this helps!
ED:8cm,DC:10 so the air is HD:18
Answer:
13 centimeters per day.
Step-by-step explanation:
We have been given that during summer, the water level of the river increased by 78 centimeters in 6 days. We are asked to find the water level increase rate in centimeters per day.
To find the water level increase rate per day, we will divide total increase by total days as:
![\text{Water level increase rate per day}=\frac{78\text{ cm}}{6\text{ days}}](https://tex.z-dn.net/?f=%5Ctext%7BWater%20level%20increase%20rate%20per%20day%7D%3D%5Cfrac%7B78%5Ctext%7B%20cm%7D%7D%7B6%5Ctext%7B%20days%7D%7D)
![\text{Water level increase rate per day}=\frac{13\text{ cm}}{\text{ day}}](https://tex.z-dn.net/?f=%5Ctext%7BWater%20level%20increase%20rate%20per%20day%7D%3D%5Cfrac%7B13%5Ctext%7B%20cm%7D%7D%7B%5Ctext%7B%20day%7D%7D)
Therefore, the water level increase rate is 13 centimeters per day.