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3 years ago

13

a rock is thrown in the air from the edge of a seaside cliff. it's height in feet is represented by f(x) = - 16(×²-8x-9), where

is the numbers of seconds since the rock was thrown. the height of the rock is 0 feet when it hits water

1 answer:

Ainat [17]3 years ago

4 0

Answer:

6 seconds

Step-by-step explanation:

Just took the test :)

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