Answer:
which ray is opposite of ba -->
BA-->
CA-->
DA--->
BD--->
the arrows are the direction they are going
Step-by-step explanation:
you cant solve for x but
55x/11x=5x
x= square root of 130
a^2+b^2=c^2
a=7 b=9 c=x
49+81=x^2
130=x^2
square root of 130=x
v=3+1.5x7
v= 13.5 m/s