Angle
A is circumscribed about circle O. What is the length of AB

4

Step-by-step explanation:

In your imagination draw a line through A and O.  Reflect triangle ACO about this line.  Then AB is of the same length as AC:  4.

Similarly, the radii OC and OB have the same length, and so OB = 3.

positive

step-by-step explanation:

the quadrant is facing upwards

aloha~! my name is zalgo and i am here to you out on this amazing day. to answer your question, yes, nonzero numbers can have a greatest common factor and that would be 1. still don't get it? let me considering every number is divisible by 1 and hence every number has 1 as a factor of theirs. so, if 2 nonzero numbers didn't share any gcf (greatest common factor), they would still have a factor in common and that would be 1.

i hope that this ! : p

"stay and stay proud! " - zalgo

(by the way, do you mind marking me as brainliest? i'd greatly appreciate it! mahalo! x3)