If a rock falls from a height of 44 meters on Earth, the height H (in meters) after x seconds is approximately H(x) = 44 - 4.9x². (a) What is the height of the rock when x = 1.3 seconds?
meters.
The height of the rock when x = 1.3 seconds is
(Round to three decimal places as needed.)
(b) When is the height of the rock 13 meters?
seconds
The height of the rock is 13 meters when x
(Round to two decimal places as needed.)
(c) When does the rock strike the ground?
The rock strikes the ground when x seconds.
(Round to two decimal places as needed.)