What is 591/9120 plz answer corretly
1 answer:
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Answer:
.
Step-by-step explanation:
The person in this question is in the air whenever the height is greater than .
The graph of is a parabola opening downwards. Rearrange and find values of
that would set this expression to
.
.
The first factor, , suggests that
would set this expression to
- quite expected, since the person is on the ground right before jumping.
The second factor, , suggests that
(in other words,
) would also set this expression to
. Hence, this person would be once again on the ground
seconds after jumping.
Hence, this person is in the air between and
for a total of
.