a girl is at the top of a vertical cliff, at a point 120m above the ocean. she hammers a tennis ball up into the air. after 2.5 seconds, the ball reaches a maximum height of 145m above the ocean. when is the ball just 20m above the ocean?

On a architect's drawing of a house, 1 inche representa 1.5

Asequence {an} is defined recursively, with a1 = 1, a2 = 2 and, for n > 2, an = an-1 an-2 . find the term a241

Now 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.