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Assume a fair deck of playing cards. Find the probability of drawing a 10, replacing it and drawing an ace.
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Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?
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Due to bad planning, two of the local schools have their annual plays on the same weekend. while 457 people attend one, and 372 attend the other, only 104 people were able to attend both. how many people went to at least one play?
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Assume a fair deck of playing cards. Find the probability of drawing a 10, replacing it and drawing...
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