Answer:
5/12
Step-by-step explanation:
slope is 
so
and that is 5/12
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9√5+√5
=22.360679775
&
6√2+5√2-15√2
=-5.656854249
To determine the perimeter of the pentagon, you must first calculate a side length of it. Let's name the coordinates A(-1,4) and B(2,3).
To figure out how far the points are from each other, you have to use the distance formula:



D_{AB}= \sqrt{(2--1)^2+{(3-4)^2}




Now, the formula for the perimeter of a pentagon is
P = 5×side length
So...
Perimeter = 5×

The answer is (2)
Answer:
3.
..2330
Step-by-step explanation: