Answer:
9/15=0.6
6×10^1
Step-by-step explanation:
hope it helps
Theorem: If two chords intersect within a circle, then the product of the lengths of the segments (parts) of one chord is equal to the product of the lengths of the segments of the other chord.
This means that

If PA=PB, then subtituting PA instead of PB in previous equality you get

Answer: true.
Answer: 8x^4.5, 4x^3
Step-by-step explanation:
135 + (-136) = 135 - 136
= -1
126 + (-747) = -621
-1 - (-621) = -1 + 621 = 620
——
The answer is 5/4 (5 over 4)