3 years ago

Help me please !!?????????? Question 4

Mathematics

1 answer:

Ne4ueva [31]3 years ago

4 0

from question d = 16t^2 = 56-4t

=》 16t^2 -56 + 4t =0

=》 4t^2 - 14 + t = 0

=》 (4t-7)(t+2) =0

=》 t = 1.75 seconds

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