F(x) = 3x² + 24x + 21
Vertex

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?

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122

What is the value of x? enter your answer in the box.