Step-by-step explanation:
x -2 -1 2 7
y -6 -6 -2 3
All y are in under root
Formula used: cos(x) = 
Hope this helped!
~Just a girl in love with Shawn Mendes
Answer:
Response 1
Step-by-step explanation:
Response 1 is the only wording that is self-consistent. Response 1 is the appropriate response.
___
Response 2 argues about angles, then concludes sides are congruent. This makes no sense.
Response 3 identifies congruent segments, but they are not opposite sides. The conclusion is unsupported.
This should be your answer
Answer:
51
Step-by-step explanation:
See the other answer