THREE QUESTIONS CONCERNING QUADRATIC EQUATIONS: (a) State the four methods used to solve quadratic equations (b) Name the four types of solution types used to classify quadratic equations particularly when the discriminant is used. (c) The discriminant of a quadratic equation is -25. What type of solution(s) does the equation have?

A. Factoring; Completing the Square; Quadratic Formula; Graphing

B. All real numbers; 2 complex roots; 1 real root; 2 distinct real roots

C. 2 complex roots

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2