-18 + 9 = -9
-9 = -9
If you're looking for false or true.
The answer would be true
the anser to that problem is -1/3
Answer:

Step-by-step explanation:
The distance between points
and
is

Hence, the distance between points
and
is

Answer:
Yes
Step-by-step explanation:
After solving for the two values of a, the second inequality gives a value inside the range of the first inequality.
Answer:


Step-by-step explanation:
Given


Solving (a): The mean
This is calculated as:

So, we have:



Solving (b): The standard deviation
This is calculated as:

So, we have:



