i need a picture if im going to help
You would need to know more than that to answer the question
Answer:
19.1cm
Step-by-step explanation:
AB=20
AC=6
BC=?
So,by Pythagoras Theorem:-
AC2=AB2+BC2
Therefore:-
AB2-AC2=BC2
400-36=BC2
√364=BC2
19.1=BC2
Answer:
C) x = -2
Step-by-step explanation:
Original equation:

subtract 12 from both sides:

square both sides:

subtract 1 from both sides:

divide both sides by -4:
