Step-by-step explanation:
x=y=75°
y+30=z
105=z
!!!!!!!!!!
Answer:
Following are the responses to these questions:
Step-by-step explanation:
In point a:
Please find the graph file in the attachment.
In point b:
This information is interesting for us, because we inform us about an important disease outbreak in such days and how the pandemic impacts major global communities like London as well as how the pattern in the recorded cases is increasing and decreasing.
In point c:
The data are sorted: 551, 1683, 3194, 4053, 4079, 5842, 5868
Mean
Median proves middle value or class so if ascending data is arranged = 4th term = 4053
A mode is of max 
Range It is also the difference between max and min values which indicates the overall distribution range 
The standard deviation
Howard is about 193.9 yards from the top of the reservoir.
This is a trigonometry problem. If you draw a picture of the situation, you will see that you have an adjacent side and need to know the hypotenuse.
That makes it a cosine problem:
cos(64) = 85/x
x = 85/cos(64)
x = 193.9
He is about 193.9 yards from the top of the reservoir.