No, the answer is no.
Answer:
Answer for A
Step-by-step explanation:
I don't know about B , Sorry for that.
90 degrees
It's 1/6, hope this helps!
(x+12)^2=84
x^2+24x+60=0
x^2+24x=-60
x^2+24x+(24/2)^2=-60+(24/2)^2
(x+24/2)^2=84
(x+12)^2=84 (ans)