2. Matei a scris numerele de la 45 la 99. Ce putem spune despre numărul scris exact la mijlocul șirului? a. are suma cifrelor 8 c. nu este mai mare decât 68 b. se împarte exact 4 d. este un număr impar​

omg what happend to your question? if you could edit this question i can

step-by-step explanation:

bn,mn,n.vn.

step-by-step explanation:

a. is correct

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)