If fifteen is added to five times a number, the result is thirty-five less than the square of the number. Find all such numbers. If there is more than one answer separate them with the "and" button.
If there is no such number, select the "None" button.
The number(s) satisfying the given condition:

Match the term on the left with its image or description on the right. match term definition diameter a) circle a and a line segment connecting points b and c which are on the circle. circumference b) circle a and a line segment connecting points b and c which are on the circle. radius c) a piece of the circumference of a circle secant d) two circles that share the same center. concentric circles e) the distance around a circle arc f) a segment between two points on a circle that passes through its center

What is the measure of ac? 5 units 13 units 26 units 39 units

1. what is the measure of ∠abc? what is the measure of ∠abd?