Use the formula
n(n-1)/2
which is the total number of connections between n points
So,
4(3)/2 = 6
the answer is option C.
Hope this helps
Answer:
Step-by-step explanation:
Answer:
x = 8
Step-by-step explanation:
36 × 2 = 9 × x
72 = 9x
9x = 72
9x ÷ 9 = 72 ÷ 9
x = 8
Answer:
Given the value of pi (π) = 3.14
Given the speed of Radius = 0.10 mph
Given the total area = 11000 square miles.
To find = the time.
Step-by-step explanation:
Since the oil spill in the ocean and spread in a circular pattern. So the total the spilled area = 11000 square miles.
The speed of the radius at which is increase = 0.10 mph
Given the value of pi (π) = 3.14
Now we have to find the total hours consumed to cover the area or the spilled over the area.
First, find the radius and this radius will be the distance. Then divide the distance with speed to find the time taken.
Area = 2 π r^2
11000 = 2 ×3.14 × r^2
r = 41.85 m
Now find the time.
Time taken to spill the oil = 41.85 / 0.10 = 418.52 hours
