Answer:
Step-by-step explanation:
Given
+ 3( - )²
= + 3 ( )²
= + 3 ×
= +
=
8/3
7/3+3(2/3-1/3)^2
=7/3+3(1/3)^2
=7/3+3(1/9)
=7/3+3/9
=7/3+1/3
=8/3
If solving for z, z=8
As the triangles are similar :
45/55 = (12x - 3)/143
9/11 = (12x - 3)/143
9 x 13 = 12x - 3
12x = 117 + 3
12x = 120
x = 10
You aren't even giving 200 points.