They need to have common denomenators so change the fractions to 12/15 - 5/15 which is 7/15.
Mistake in Line 2 : Was in the determining the values for a ,b,c
Mistake in Line 4 : Not taking the square roots of both sides.
Step-by-step explanation:

First Mistake : Line 2

Second Mistake : Line 4

Correct Solution :


You have not shared the graphs from which you have to choose your answer.
Why not graph y=|x-4| yourself, to help you choose the correct answer?
First, graph y=|x|. It looks like a "v" opening up, with the vertex at (0,0).
Next, move the whole "v" graph 4 units to the right.
Compare your result to the given answer choices.
Make 4/5 into 8/10 which would make the decimal .8.
Since hypotenuses and legs have the same length, then both are congruent and thus, triangles ABC and DEF are congruent.
The Hypotenuse-Leg theorem states that two <em>right</em> triangles are <em>congruent</em> if and only if their hypotenuses and any of their <em>corresponding</em> legs are <em>congruent</em>. That is to say:
, 

, 
If we know that
,
,
and
, then we have the following outcomes:


Since hypotenuses and legs have the same length, then both are congruent and thus, triangles ABC and DEF are congruent.
We kindly invite to check this question on triangles: brainly.com/question/21972776