Answer:
0
Step-by-step explanation:
x2 +4x-21=0. solve for x


Answer: D) vertical angles theorem, alternate interior angles theorem
Angle 5 = Angle 6 by the alternate interior angles theorem
Angle 5 = angle 4 by the vertical angles theorem
By the transitive property, we can then say angle 4 = angle 6. These angles are also corresponding angles.
We won't use the angle addition theorem or the right angles theorem.
Answer:
Może być odpowiedź c ja ne wiem
Is there a math question and can you show it please