Determine where the function h(z)=6+40z^3−5z^4−4z^5 is increasing and decreasing.

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge

Use the irregular polygon below. show all work. a. find the perimeter. b. find the area. the angles of the irregular polygon is 2, 8, 8, and 4.