What is the value of x? assume that the line is tangent to the circle.
115
130
285
230

Given this information, which expression must represent the value of b?

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.

Zahra wants the equation below to have an infinite number of solutions when the missing number is placed in the box.