Aregion that is organized around a node is called what

If scientists only detect p waves in a certain layer of earths interior what does that tell us?

Triangle with the the sides 72 and 75 and x. also other trsingle withsides 24 25 and 7. what is the value of x.

In upholding louisiana's separate car act, the supreme court claimed thatsegregation was not the same as discriminationthe fourteenth amendment did not apply to southern statesdiscrimination was necessary in order to maintain public ordero segregation was unconstitutional based on the fourteenth amendment