Triangle abc is isosceles.
(x+5)
(3x)"

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2