Datos: 12, 10, 8, 5, 6
hallarle la media cuadratica​

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11 -1> 1 -1+ a

-12 > a

answer: c. is your answer

step-by-step explanation: get me a black leather coat

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis: