1.

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 thatx^2+bx+c > 0 for all x in Ris

Answer»

`23/81`
`7/9`
`32/81`
`65/729`

ANSWER :C


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