Last Ex-Dividend Date: Mar. 15, 2017. Description: Quanex Building Products Corp manufactures engineered products such as window components that include flexible insulating glass spacers, extruded vinyl profiles, window & door screens, solar panel sealants & precision-formed metal & wood products.
A: Among the animals whose names start with the letter n are the nutria, nyala, nanger, narwhal, needlefish, night sergeant, northern sennet, natal barred blue butterfly, night butterfly and Northern Jungle Queen. Other animals include the nuthatch, nightjar, northern mole cricket, nectar-sucking blister beetle and nine-spotted ladybird beetle.
The letters R,Q,N,Z are the names of the set of the numbers, that have specific properties. For instance, N is the letter which designates the set of natural numbers. N = {0 , 1 , 2 , 3 ,............. If the set is N^*, that means that the 0 value does not belong to the set. We could also write as: N^* = N - {0} The letter Z designates the set of integer numbers, which contains positive and negative elements. Z = {... , -n ,.... ,-4 ,-3 ,-2 ,-1 ,0 ,1 ,2 ,3 ,4 ,... ,n, .....} So, the set Z is composed from the elements of N and their opposed. The conclusion would be that N is a subset of Z. Also Z^* = Z-{0}. The letter Q designates the set of rational numbers. The set could be mathematically described as: Q = {m/n / m and n belong to Z, m is not divided by m}.