[" Two numbers b and "c" are chosen at random (with replacement) from the numbers "1,2,3,4,5,6,7,8" and "9." The probability "],[" that "x^(2)+bx+c>0AA x in R" is "]

Two numbers b and c are chosen at random with replacement from the numbers 1,2,3,4,5,6,7,8 and 9. The probability that x^(2)+bx+c>0 for all x in R is

Two numbers b and c are chosen at random with replacement from the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9. The probability that x^2+bx+cgt0 for all x in R is

Two numbers b and c are chosen at random with replacement from the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9. The probability that x^2+bx+cgt0 for all x in R, is

Two numbers b and c are chosen at random with replacement from the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9. The probability that x^2+bx+cgt0 for all xinR, is

Two numbers b and c are chosen at random with replacement from the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9. The probability that x^2+bx+cgt0 for all xinR, is

Two numbers b\ a n d\ c are chosen at random with replacement from the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9. Find the probability that x^2+b x+c >0\ for\ a l l\ x in Rdot

Two numbers x and y are chosen at random without replacement from the numbers 1, 2, 3,…, 3n. Find the probability that x^(3) + y^(3) is divisible by 3.

Two numbers x and y are chosen at random (without replacement) from among the numbers 1,2,3,2004 .The probability that x^(3)+y^(3) is divisible by 3 is (a) (1)/(3) (b) (2)/(3) (c) (1)/(6) (d) (1)/(4)