An object is dropped from a small plane. as the object falls, its distance, d, above the ground after t seconds, is given by the formula d = –16t2 + 1,000. which inequality can be used to find the interval of time taken by the object to reach the height greater than 300 feet above the ground?

The  height must be greater han 300 ft above the ground, then d> 300
the inequality will be:
-16t²+1000> 300

we can solve this inequality.
  -16t²+1000> 300
-16t²> 300-1000
-16t²> -700
-t²> -700/16
-t²> -43.75
t²< 43.75
t< √43.75
t< 6.61  or  (0 ,  6.61)

answer: the inequality willl be : -16t²+1000> 300,  and the interval of time taken by the object to reach the height greater than 300 ft above the ground will be (0 , 6.61) seconds.