Answer:

Step-by-step explanation:
we know that
----> by Intersecting Chords Theorem
substitute the given values

solve for x


Answer:
5/12
Step-by-step explanation:
can't be anymore simplified, it already is
Answer:
3
Step-by-step explanation:
There is no x in the equation, so I will assume solving for m
Distribute:
3m + 21 = 6m + 12
Subtract 3m and 12
3m = 9
Divide by 3
m = 3
Answer:
Y = -1/2x + 7/2
Step-by-step explanation:
slope = -1/2