Dada a função quadrática y=a • x ao quadrado + bx + c, o valor máximo é a ao quadrado + 4 em x=1 e o gráfico passa pelo ponto (3, 1). encobre os valores das constantes a, b e c.

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.