Answer:
This question is pretty simple, half the values given are just to confuse you
notice that we are given a function which gives us the height of the rock at any given time, so if we use that function for t=2 seconds, we will get the height of the rock after 2 seconds
We are given the function:
<em>h(t) = -16t² - 50t + 220</em>
replacing t with 2
<em>h(2) = -16(2)² - 50(2) + 220</em>
<em>h(2) = -16(4) - 100 + 220</em>
<em>h(2) = -64 - 100 + 220</em>
h(2) = 56 feet
Therefore, the height of the rock 2 seconds after throwing is 56 m
