Resuelve el siguiente problema mediante un sistema de 2 grado Hallar la edad de una persona sabiendo que si el cuadrado se le resta el triple de la edad resulta ser 9

Y=4x^2+x-1 solve using quadratic formula

Jordan has $5.37, which he is using to buy ingredients to make salsa. he is buying one red pepper for $1.29 and three pounds of tomatoes. if jordan has exactly the right amount of money he needs, what is the price per pound of the tomatoes? choose the correct equation to represent this real-world problem. solve the equation and verify the reasonableness of your answer. a pound of tomatoes costs .

Acertain volume of water contains 100000 hydrogen atoms and 50,000 oxygen atoms how many hydrogen atoms are in a volume of water containing 4 million oxygen atoms