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newyorkvincetti
06.06.2020 •
Mathematics
A softball is thrown from the top of a 30ft building. The height of the ball is modeled by
h(t) = -16ť? + 20+ + 30
where t is time in seconds.
How long does it take for the ball to hit the ground?
Question to How long does it take for the ball to hit the ground? Round to the nearest tenth.
The ball hits the ground at
seconds.
Solved
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Ответ:
2 seconds
Step-by-step explanation:
When the ball hits the ground, its height (h) will be 0. You can therefore set up the following equation:
Factor:
Since the time must be positive, it hits the ground after 2 seconds. Hope this helps!
Ответ:
the answer is <1 and <5 because they are exterior
Step-by-step explanation: