If `(x)/(5) - 9 = 1`, then x = _____

If 1/(x^2+5)=1/9 then x=

(x)/(x^(2)-5x+9)<=1

If sum _(i=1) ^(9) (x _(i) - 5) = 9 and sum_(i =1) ^(9) (x _(i) - 5) ^(2) = 45, then the standard deviation of the 9 terms x _(1), x _(2),....,x _(9) is

If   ( x + 5 )/6 - ( x + 1 )/9 = ( x + 2 )/4 , then find the value of x

If 3x - (1)/(3x ) =5 , find : (i) 9x^(2) + (1)/( 9x^2)

(x)/(x^(2)-5x+9)le1.