P(A)= .50, P(B)= .30, and P(A and B) = .15. What is P(A or B)?

Given the graph below state whether or not the relation is a function, and give the domain and range.

In factoring by grouping, what would you have for step 3 for the following? step 1: x^3 +5x^2 +4x+20 step 2: x^2 (x+5)+4(x+5) step 3: ?

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.