16) An object is launched from ground level with an initial velocity of 120 meters per second. For how long is the object
at or above 500 meters (rounded to the nearest second)?
The equation that models the path of the object is y=-4.912 + 1200.
A)
11 seconds
B)
12 seconds
13 seconds
D)
14 seconds

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)

the argument of alfred t. mahan, henry cabot lodge, and albert j. beveridge was the economically and mass production the the americans could not consume themselves. this led expansion to sell to other foreign nations for profits.

step-by-step explanation:

this is my explanation