Which equation represents a line parallel to the line shown on the graph? a.y=3x-7 b.y=-3x+3 c.y=1/3x+7/9 d.y=-1/3x+12

No.

Step-by-step explanation:

For  a triangle to be a right angle triangle:

The two shorter side squared need to add up to longest side squared.

Let a and b are the shortest side and c be the longest then;

You can use Pythagoras theorem;

As per the statement:

A triangle has sides of lengths 27, 79, and 84

then;

Therefore, this violate the Pythagoras theorem;

therefore, this triangle is not a right angle triangle.