On the wire itself?
It'll have the type of wire as well as the size and maybe the manufacturer part number.
High tension electrical wires
A triangle.
You are finding the mean of the set of numbers.
These are the floating point numbers or simple decimal numbers. These line are mathematical problem lines.
Add all the numbers together, then divide by the number of numbers.
the mean (in math) is the average of all the numbers in the problem
Mean numbers are the average. To find the mean or the average, you have to add all the numbers in the data and you divide the sum by the total number of numbers there are. You divide the sum by how much numbers there are. For example, if the data numbers for a line plot is 1,2,3,4,2,0. You do this: 1+2+3+4+2+0=12 (Add all the numbers together) 12 divided by 6 = 3 (Take the sum and divide by how much numbers there are) 3 = mean number or average So you just take the numbers from the data or if you're gonna plot it on a line, just take those numbers that you're going to plot and do what I did up there.
It means you have bruised it.
I assume you mean black iron pipe, which is used to run the gas line to your furnace.
It will be the wire without the black line on it. Usualy the black line on a solid color will mean negative (-)
Bookkeepers used ink to record the money of a company. They use red ink for negative numbers and black ink for positive numbers. When a company is in the black it is making a profit.
The separater to make the negative and positive numbers opposites?