Which expression gives the distance between the points (2,5) and (-4,8)?

If the discriminant if a quadratic equation is 4 which statement describes the roots?

Determine the required value of the missing probability to make the distribution a discrete probability distribution. x p(x) 3 0.23 4 ? 5 0.51 6 0.08 p(4) = nothing  (type an integer or a decimal.)

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b