First add like terms in this case 1+7=8. Then then divide. 2x/8= 4. X=4
It has no correlation so C.
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Answer:
x = - 2 , y = 2
( - 2, 2)
Step-by-step explanation:
first equation add 1/2 to both sides
second equation subtract 2x from both sides
Solve the first equation
subtract x/2 from both sides
substitute for y in the other equation
add
to 2x
subtract 1 from both sides
divide both sides by
x = - 2
substitute the value of x into an equation
distribute
y = 1 + 1
y = 2
x = -2, y = 2
( - 2, 2)
Answer:
Option B. perpendicular bisector of side AB
Step-by-step explanation:
we know that
The circumcenter is the intersection point of the perpendicular bisectors of a triangle
so
In this problem
The circumcenter O is the intersection point of perpendicular bisector of side AB and perpendicular bisector of side BC
OA=OB=OC ------> the radius of the circle that passes through all three of the triangle's vertices.
therefore
Option B. perpendicular bisector of side AB