Se zero éo valor numérico da expressão x²=y, de exemplos de valores inteiros que x e y podem assumir. Para que valores de a as expressoes a seguir nao tem valor numérico?

Alguém sabe?ajudinha

The solution set for 5v2 – 125 = 0 is

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books

Anumber cube is rolled two times in a row. find the probability it will land on 2 on the first roll and a number greater then 4 on the second roll