The graph of an inequality has an open circle at 3.9, and the ray moves to the right. what inequality is graphed?

The required inequality is x > 3.9

Step-by-step explanation:

Consider the provided information.

The closed circle means that the set contain that extreme.

For closed circle we use the inequality "≤" or "≥"

The open circle means that the set does not contain that extreme.

For open circle we use the inequality "<" or ">"  

Here, it is given that the graph has an open circle, therefore the required inequality should be "<" or ">"

If the ray moves right, in the usual notation, the real numbers increase to the right, if it moves to left the real numbers decreases.

It is given that the ray moves to right that means the set of numbers bigger than 3.9, that does not contain the number 3.9

Hence, the required inequality is x > 3.9

Where x is any number greater than 3.9.

which expression represents the approximate length of bc?

step-by-step explanation: