Answer:

Step-by-step explanation:
Given
i.e. 10 people
Required
Probability of being next to each other
First, we calculate the total possible arrangements (without any restriction)


If the three are to be next to each other,
First, we arrange the three

Now, the 3 will be seen as 1; so, we have a total of 8 people i.e. (1 + 7 others)
The arrangement is:

So, the total arrangement, when they have to be next to one another is:


The probability is:


Expand




Express as percentage


Answer:
3 > -7
Step-by-step explanation:
-9 < 21
/-3 /-3
------------
3 < -7
Now, whenever you divide or multiply by a negative, you will change the inequality sign.
So, 3 < -7 becomes 3 > -7
Answer:
The equation should be 2.5x+1.8=59.3
Step-by-step explanation:
First, subtract the 1.8 dollars from the 59.3. You will get 57.5. Divide it by 2.5 and you will get the number 21 as x.
To convert degrees to radians, multiply by π180° π 180 ° , since a full circle is 360° or 2π radians.