Answer:
a segment cd only
Step-by-step explanation:
segment cd is the only line that passes through segment ab at a right angle
You solve by with by altitude! Hope it helps
-3z + 7 = -7 - 10z
Add 10z to both sides
7z + 7 = -7
Subtract 7 from both sides
7z = -14
Divide by 7
Z = -2
24
x
^2
+
54
x
+
21,
if you would like me to explain how to do it, I can in the comments.
