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jarptica [38.1K]
3 years ago
8

PLEASE HELP WILL MARK BRAINIEST AND NO LINKS!!!!

Mathematics
1 answer:
Mashutka [201]3 years ago
6 0

Answer:

a. 5 seconds

b. 1 second

Step-by-step explanation:

Plug the values into the equation and solve for t.

f(t)=-16t^2+400\\f(t)=-16t^2+16

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