Answer:
upper control limit 
Concept :
where 

where 
Given :
She took a sample of per day
is
bottles.
The standard deviation
of all bottles is
degree.
Average across all
bottles
are
degree Fahrenheit.
To find :
The value of the upper control limit (UCL)
Explanation :
Here, firstly we find the value of
.


and 


Now, 


degrees.
For the first one number 1,2 and 3 are prime cause it can only be times 1, and 4 is a composite because it is not prime it can be times not only by 1 but by 2 two do you understand it more now or do you need help still
Answer:
1. As parallelogram have no line of symmetry, so after no rotation we can get a parallelogram which is mapped onto itself.
2. Now if we reflect the parallelogram ABCD along + Y axis
3. If we reflect the parallelogram ABCD along -X axis
4. If we reflect the parallelogram ABCD along the line , y=x
In all the three cases mentioned above i.e 2,3,and 4 we are getting a parallelogram congruent to ABCD.
need more info in order to help