Aball is thrown from a height of 80 feet with an initial downward velocity of 4/fts . the ball's height h (in feet) after t seconds is given by the following.

h−80−4t-16t^2

how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth.

What is the value of the expression below? (81^2)^1/8

Asap its important using the information in the customer order, determine the length and width of the garden. enter the dimensions.length: feetwidth: feet

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.