Answer:
scale factor = 
Step-by-step explanation:
the scale factor is the ratio of corresponding sides , image B to image A
scale factor =
=
= 
Answer:
No the student is not correct because the answer is 0.4761. All the student did was wrong was the adding up the zeros.
Step-by-step explanation:

that is the answer to the equation of your question
Answer:
m<BCA+m<BCD=180
Step-by-step explanation:
supplementary means that the angle measures add up to 180°, if you are using the definition of supplementary angles AND you have had a statement saying that two angles are supplementary, ALWAYS follow it with the sum of the measures of those angles equal 180 :)