Rewrite 0.85 as a fraction in lowest terms.

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?

Adriveway is 40 yards long about how many meters long is it

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0