Answer:
the height of the rock 3.2 seconds after it is propelled
Step-by-step explanation:
The complete question is
The function h(t) = –16t2 + 28t + 500 represents the height of a rock t seconds after it is propelled by a slingshot
Let
t------> the time in seconds
h----> the the height of a rock after it is propelled by a slingshot in meters
we know that
[tex]h(t)=-16t^{2} +28t+500[/tex]
For [tex]x=3.2\ sec[/tex]
Find the value of h(t)
[tex]h(3.2)=-16(3.2)^{2} +28(3.2)+500=425.76\ meters[/tex]
therefore
h(3.2) represent the height of the rock [tex]3.2[/tex] seconds after it is propelled
see the attached figure to better understand the problem
