Step-by-step explanation:
B becuase it keeps the same orientation and have the same distance from each point and they both produce rigid motion.
A is a reflection.
C is a dilation.
D is a rotation.
Answer:
6x + 9 = 4
Step-by-step explanation:
A points location will change after you add a negative value to the y coordinate even if you leave the x coordinate the name because you are changing the value of the y coordinate. For example, if you have (4,6) as a coordinate and then change it to (4,-6), the coordinate will now just be on the other side of the x axis
we know that
The internal angles of the triangle 
are
Angles
The internal angles of the triangle 
are
Angles
therefore
the answer is
Try 147? it may be wrong but i though that with that type of thing the middle one is supposed to equal double the bottom.
