Hello I wanted to review this with my daughter but I want to make sure I'm understanding your steps. I am trying to find the indicated length for LM, see attachment
So X + 2X = 18
3X = 18
X = 6
LM = 2X
LM = 2 * 6
LM = 12?

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?

The step function g(x) is defined as shown.what is the range of g(x)? ***answer choices in picture.

What is the percentile for data value 6 in the following data set? 4 13 8 6 4 4 13 6 4 13 2 13 15 5 9 4 12 8 6 13 40 25 35 62