ABC is a semi circle with center O . AB is produced to K such that KCS is a tangent to the circle at C. SO is perpendicular to AB and angle KCB is equals to 25 degrees. Give a reason why angle CAB is equals to 25 degrees

Do not comment if you aren’t going to . create a real-life situation and create a system and show how it might be modeled algebraically with a system of equations (or inequalities) show all work include a few sentences explaining the situation, your variables of choice and what each represents, and how you would set it up and solve it algebraically. !

In angle pqr find the measure of

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0