The easiest thing to do to solve all of these is to use the quadratic equation.

The first number (the one attached to x^2) is equal to a. The second number (the one attached to x) is b. The final number (the one with nothing attached) is c.
Answer:

Step-by-step explanation:
by using pythagorus theorem,
=》

=》

=》

=》

=》

It is divided by 2 each time, and so your next number will be 4, since 8/2 = 4
C) 4
hope this helps :D
Answer:
the answer is A. Elijah is correct.