Mean basically means average/ all the numbers added together divided by the amount of numbers given to us
So all the numbers added up will equal to 51 (-5+-3+-1+6+6+9+9+10+10+10) now divide that by the number of of numbers me given to us which is 10 so
51/10= 5.1
Mean=5.1
It is a right triangle
cos 58 = 20/length of rope
length of rope = 20/cos 58 degrees
= 37.74 feet
Answer:
n = 55/8
Step-by-step explanation:

M = 9
o = 7
m + 0 = 9 + 7 = 16
Hence, the answer is 16.