A phone is accidentally dropped from a helicopter at a height of 3,600 ft. If the
equation for height as a function of time is
h(t) = -16t2 + initial height where t is time
in seconds and h(t) is height in feet, how
many seconds will it take for the phone
to hit the ground?
[?] seconds

15

Step-by-step explanation:

0 = -16t^2 +3600

16t^2 = 3600

t^2 = 3600/16 = 225

t = 225 square root

= 15 sec

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.