brutcherk
18.09.2019 •
Mathematics
Agrasshopper jumps off a tree stump. the height, in feet, of the grasshopper above the ground after t seconds is modeled by the function shown.
h(t) = -t² + 4/3t + 1/4
after how many seconds will the grasshopper land on the ground?
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Ответ:
Hence, Grasshopper will land on the ground after 1.5 sec.
Step-by-step explanation:
It s given that:
The height, in feet, of the grasshopper above the ground after t seconds is modeled by the function:
Now we are asked to find:
In how many seconds will the grasshopper land on the ground?
i.e. we have to find the value of t such that h(t)=0
i.e.
i.e. we need to find the roots of the given quadratic equation.
On solving the quadratic equation or plotting it's graph we could observe that the point where h(t)=0 are:
As time can't be negative hence we will consider:
Hence, grasshopper will land on the ground after 1.5 sec.
Ответ:
Hope this may help you❤️