P(A)=0.56,P(B)=0.23 and P(A and B) = 0.12. Find P (A or B)

Use the graph to determine the range. which notations accurately represent the range? check all that apply. (–∞, 2) u (2, ∞) (–∞, –2) u (–2, ∞) {y|y ∈ r, y ≠ –2} {y|y ∈ r, y ≠ 2} y < 2 or y > 2 y < –2 or y > –2

What is the measure of angle x? answer

Which best explains why this triangle is or is not a right triangle ?