0.628 is your answer. hope this helps
Answer:
x=3
Step-by-step explanation:
I am assuming that your equation is:

Subtract 4 from both sides to get:

Square both sides to get:



Divide both sides by 8 to get:

Answer:
Yes you're right, it does
Answer:
Quadratic equation follows form: ax^2 + bx + c = 0
a = 8
b = - 6
c = 13
Answer:
c
the total number of marbles are 12 and there are 3 colours so you divide 12 by 3