Answer:
g(x)=2(x-9)(x+3)
Step-by-step explanation:
X is the circumcenter of triangle ABC means that X is the center of the circle circumscribed to triangle ABD, as shown in the figure.
This means that All XA, XB and XC are radii of the circle with center X. Since AX and CX are 5.3 cm, then so is XB.
Answer: XB=5.3 cm.
AB = 56 because the bigger triangle is 2 times the smaller one.
Answer:
B. 1.-1,-2
Step-by-step explanation:

Substitute g(x)=0

Move the expression to the left

Factor out -x^2 from the expression

Factor out (x+2) from the expression

When the product of the factor equals 0, at least one factor is 0


Solve for x

Answer:
IJ= 4.98
Step-by-step explanation:
EF = 12
KF = 6
LF = 7.8
LK = sqrt(7.8^2-6^2) = 4.98
IJ = LK (4.98)