Answer:
Step-by-step explanation:
Answer:
60
Step-by-step explanation:
All the angles in that triangle are the same due to the type of triangle.
Answer:
x=-12
x=10
x=-8
x=-5
Step-by-step explanation:
Answer:
-1/1
Step-by-step explanation:
down one, over one
3a^2 + 9
= 3a^2 + 3^2
= 3(a^2 + 3)