How long is the jumper in the air
A jumper in the long-jump goes into the jump with a speed of 12 m/s at an angle of 20 above the horizontal. How long is the jumper in the air before returning to the Earth?
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The probability that a certain kind of scratch-off lottery ticket will win a prize is 0.22. Kendra received 8 tickets for her birthday. Let X be the number of winning tickets. What is the distribution of X?
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