Answer:

Step-by-step explanation:
Based off of what we do know, if we can find length DB we can use the pythagorous theorem (I will be assigning the variable z)

First equation is for triangle ABD
Second is for BCD
And the last one is for ACD
Substitute
and 

As discovered before

Answer:
7,y,6, and x are the correct answers
Step-by-step explanation:
Answer:b
Step-by-step explanation:
Answer:
would you need to divide them???
Step-by-step explanation:
No it isn’t. it works for the first equation but not the second