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Vonne
Questions (2)
The equation of a circle A(x^2+y^2)+Bx+Cy+9=0 that passes through (1,0), (2,-1) and (8,7). Find B.
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The system
3x + ay = 0 (a-2)x + 5y = 0 has infinitely many solutions. What is the smallest possible value of a? Thanks!
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Answers (1)
in a family with two children, what are the probabilities of two boys, the first is a girl the second is a boy, neither is a girl, at least one girl, assuming that the birth of boys and girls is equally likely. Show steps
