Agirl wants to count the steps of a moving escalator which is going up, she counts 60 steps. if she is walking down taking the same time per step, she then counts 90 steps. how many steps would she have to take in either direction if the escalator were standing still?

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

Cor d? ? me ? 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.

In dire need~! describe how to use area models to find the quotient 2/3 divided by 1/5. check your work by also finding the quotient 2/3 divided by 1/5 using numerical operations only.