Alejandro reduced triangle a proportionally.

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.

Which of these angles are complementary? a. 45o and 45o b. 63o and 117o c. 45o and 135o d. 90o and 45o

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.