50. two airplanes leave the airport at the same time, flying in opposite directions. one plane flies 100 miles per hour faster than the other. they fly for 4 hours and end up 2,000 miles apart. how fast do they each fly? 150 mph and 250 mph 200 mph and 300 mph 300 mph and 400 mph 225 mph and 325 mph

What is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.

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.

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.