If that yield sign were a equilateral triangle, then it would be a regular polygon. In that triangle, each angle would equal 120°.
5/12 or approximately 0.417
Answer:
b = -6
Step-by-step explanation:
We use the general equation a*x^2 + bx + c = 0, the Quadratic Equation.
Compare it to 2x^2 - 6x - 20 = 0
b = -6 here