Recall the secant-tangent theorem, and you have
EA^2 = EC*CD
12^2 = 8*(x+10)
and now ED = EC+CD = 8+x+10
I suspect a typo somewhere in the murk above
Use the formula:
y2-y1
———
x2-x1
So for this problem it would be:
6-5
——
7-4
= 1
—
3
Hope this helped, if it did I would appreciate it if you would consider giving me brainliest!
Answer:
A.
Step-by-step explanation:
2.5*7 = 17.5. If it's easier for you, multiply 2.5 by 5 then add 2.5*2.
2/3 +4/3=6/3=2.... Self explanatory
