Determina el termino que hace falta en cada trinomio, de modo que sea trinomio cuadrado perfecto. luego, factorizalo
1. 9n6-18n3+?
2. 10x5n+25+?
3. 3xnyn+9x2n+?

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?