Mathematics, 13.06.2020 02:57, mandy9386

If using the method of completing the square to solve the quadratic equation x^2 + 3x +21 =0?

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Mathematics, 21.06.2019 16:10, deannabrown2293

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Mathematics, 21.06.2019 18:30, 420420blazee

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?