If the first one is a = 180 - b, and not 180 - 6, then that is correct.
Also, 360 = 2a + 2b is correct
Answer:

Step-by-step explanation:
The standard form for the equation of a circle is
where r is the radius, and the center is (h, k).
(h, k) = (-1, 2), r = 7

B. Is correct I think. Hope this helped you
Answer:
- 38
Step-by-step explanation:
Here in this question, we have to simplify a certain numeric term to get a simple answer.
The expression is ( - 6 times + 3 ) + ( 5 times - 4 )
= - ( 6 times 3 ) + (5 times - 4)
= - ( 6 × 3 ) - ( 5 × 4 )
= - 18 - 20
= - 38 (Answer)
For this case we have the following vertices:
D = (- 1, -1)
E = (1, -1)
F = (- 1, -6)
Then, the vertices after the transformation are:
D '= (- 1, 1)
E '= (1,1)
F '= (- 1,6)
The x coordinate remains the same
The y coordinate change sign.
Therefore, the transformation is:
Reflection on the x axis.
Answer:
Reflection on the x axis.
option 1