Below are two parallel lines with a third line intersecting them.

x= ??°

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

Solve the equation.then check your solution 8=1.88+a

Determine the standard form of the equation of the line that passes through (-2,0) and (8,-5)