Abdi has two electric train sets: A and B. Each train is on its own circular track. He starts both trains as the same time. Train A returns to its starting point every 12 seconds. Train B returns to it starting point every 9 seconds. If the trains continue traveling, what is the least amount of time, in seconds, that both trains will arrive at the starting points at the same time?

What is the measure of x? 43° 86° 172° 344°

Someone answer asap for ! max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a. the median of max’s data is 250 b. more than half of the data points max recorded were 177 centimeters. c. a data point chosen at random is as likely to be above the mean as it is to be below the mean. d. every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2