358$!! I divided 584$ by 2 and added 66$ to 292 and subtracted 66 to the other. 358$ dryer 226$ washer
It should be written in the form ax²+bx+c=0,
so you meed to move -8 to the left side
2x²+6x+8=0
the number in front of x² is a
the number in front of x is b
the number without x is c,
so a=2, b=6,c=8
Answer:
Step-by-step explanation:
step 1
Find the diameter of the circle
the formula to calculate the distance between two points is equal to
substitute the values
The radius is half the diameter
so
step 2
Find the center of the circle
the center of the circle is the midpoint between the endpoints of the diameter
so
The center is
step 3
Find the equation of the circle
The equation of the circle is
substitute the values
DB is a median (given). It goes from vertex point D to midpoint B.
The point B is the midpoint of segment AC. So B cuts AC into two equal halves: AB and AC
Meaning AB = AC
AC = AB+BC ... segment addition postulate
AC = AB+AB ... substitution; replace BC with AB (valid because AB = AC)
AC = 2*AB
2*AB = AC
2*AB = 50 ... substitution; replace AC with 50
2*AB/2 = 50/2 ... divide both sides by 2
AB = 25 which is the answer