What is the value of x in the proportion? 24/30 = 20/x
the choices are: 1/25, 1/16, 16, 25. !

What is the slope of the line (-7,2) (4,6)

Grant simplified the expression 1.5(-3.2 + 2.5) his work is shown below explain the error in grants work

Let x have probability generating function gx (s) and let un generating function u(s) of the sequence uo, u1, satisfies p(x > n). show that the (1- s)u(s) = 1 - gx(s), whenever the series defining these generating functions converge.