Lets say john went to 12th grade in high school, and doesn't know any knowledge you should know. what would happen if john doesn't have the knowledge of an average 12th grader.

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?

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

Evaluate the expression for the given value of the variable. | ? 4 b ? 8 | + ? ? ? 1 ? b 2 ? ? + 2 b 3 -4b-8+-1-b2+2b3 ; b = ? 2 b=-2