7.70 and 7.700 they are all the same since the 7 tenths are still in its place
The base angles of an isosceles triangle are equal
The base angles are 15 degrees, while the vertex angle is 150 degrees
The base angles are given as:
Base = (6a- 3) and (a + 12)
So, we have:

Collect like terms


Divide both sides by 5

Substitute 3 for a in Base = (6a- 3),



So, the base angle is 15 degrees.
The vertex angle is calculated using:

So, we have:


Hence, the vertex angle is 150 degrees
Read more about isosceles triangles at:
brainly.com/question/25739654
Answer: The property of y x 0 = 0 is the Identity property.
Step-by-step explanation:
I hope this is what you were looking for, I apologize if I have been mistaken.
The second one is correct
3(6-2) = (?*6) - (3*2)
? would be equal to 3