Answer:
756 feet pound
Step-by-step explanation:
Length of the chain, L = 18 feet
weight of chain, W = 84 pound
If we lift the centre of gravity of the chain, it will entirely lift up. The centre of gravity of the uniform chain is at its mid point. So, the work done
W = weight x half of length
W = 84 x 9
W = 756 feet pound
Answer:
perimeter= 152in
Step-by-step explanation:
The formula for getting the circumference of a circle is 
where 'r' is the radius. Just plug in the value for the radius.
We will also use 3.14 for PI.
C = 56.52
Hope this helps!
-11= -5+6n+6
-11+5-6=6n
-12=6n
n= -2
(hope i helped :D!)
Answer:
The median score of class A is 73
The interquartile range of class B is 8
The difference of the medians of class A and class B is 9
the interquartile range of either data set should be 8 because that is what b was.
Step-by-step explanation:
The interquartile range is the difference between the upper quartile and the lower quartile. In example 1, the IQR = Q3 – Q1 = 87 - 52 = 35. The IQR is a very useful measurement. It is useful because it is less influenced by extreme values as it limits the range to the middle 50% of the values.
