Answer:
A. The first one
Step-by-step explanation:
Because it has a negative slope and if you follow the line you can tell it has a slope of -1/4.
( - 0.625, - 1.75 )
so since the first equation is already simplified , just replace it in the second equation
Answer:

Step-by-step explanation:
The arcs LY, KM, KL and MJ together form the full revolution angle, thus

Note that

then

So,

Also

so

In triangle EML,

Thus, 
(18 - x)^2
If (a - b)^2 then the answer is a^2 - 2ab + b^2
18^2 - 36x + x^2
The answer is x^2 - 36x + 324
Answer:
a
they are opposite sides of opposite angles