Use the distance formula d= √ (x2-x1)^2+(y2-y1)^2 to find the length of the line with endpoints at (1,3) and (3,1)?
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Answer:
The answer is "Expression: x+(x+2)".
Step-by-step explanation:
Given:
The sum of two consecutive even numbers
Proving:
Let,
The First number is = x
The second consecutive number is = x+2
Calculating value by adding value:
Expression:
when x= 1, 2, 3 .... it gives:
That's why the sum of consecutive numbers is even.