Answer:
option 3
Step-by-step explanation:
the ray is an angle bisector and divides the opposite side into segments that are proportional to the other two sides , that is
= 
( cross- multiply )
4x = 5(12 - x)
4x = 60 - 5x ( add 5x to both sides )
9x = 60 ( divide both sides by 9 )
x = 
None of the choices are the value of x
Answer:
a) -2
b) ½
c) y= ½x +6
Step-by-step explanation:
Please see the attached pictures for the full solution.
Okay so if you add the top and the
Answer:
(2, - 1 )
Step-by-step explanation:
3x - y = 7 → (1)
2x + 3y -= 1 → (2)
multiplying ( 1) by 3 and adding to (2) will eliminate y
9x - 3y = 21 → (30
add (2) and (3) to eliminate y
11x = 22 (divide both sides by 2 )
x = 2
substitute x = 2 into either of the 2 equations and solve for y
substituting into (2)
2(2) + 3y = 1
4 + 3y = 1 (subtract 4 from both sides )
3y = - 3 ( divide both sides by 3 )
y = - 1
solution = (2, - 1 )
