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July 29, 2015

Homework Help: Math

Posted by ANR on Sunday, October 14, 2012 at 10:16pm.

1)let k and w be two consecutive integers such that k<x<w. If log base 7 of 143 = x, find the value of k+w

2) if 7 and -1 are two of the solutiosn for x in the equation 2x^3 +kx^2 -44x+w=0, find the value of k+w

3) from an ordinary deck of 52 cards, two cards are selected at random (without replacement). find the probability that both cards were hearts. express your answer as a common fraction reduced to lowest terms.

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