Using the segment addition postulate, the numerical length of TV is: 9 units.
What is the Segment Addition Postulate?
According to the segment addition postulate, if U lies between line segment TV, therefore:
TV = TU + UV
Plug in the values:
3x + 6 = 4 + 5x
Solve for x
3x - 5x = 4 - 6
-2x = -2
x = 1
TV = 3x + 6 = 3(1) + 6
TV = 9 units
Learn more about the segment addition postulate on:
https://brainly.com/question/2134445
#SPJ1
