20% of what number is 18
2 answers:
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Answer:
h(t) = -16t^2 + 49.64t + 5
Step-by-step explanation:
The above choice is the only one that makes the height function be a downward-opening parabola and gives h(0) = 5, the initial height of the baseball.
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Any function starting with 16t^2 will not have any positive x-intercepts.
