Which numberline model represents the expression -4.5+(-3.5)

Which is the correct excel formula for the 80th percentile of a distribution that is n(475, 33)? =norm.dist(80,475,33,1) =norm.inv(0.80,475,33) =norm.s.inv((80-475)/33)?

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9