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elena is performing a dive in a diving competition. her height during the dive is approximatelydescribed by the quadratic function below, where x = time in seconds and y = height in metersrelative to the diving board. how long does it take elena to reach the height of the diving boardagain after she starts her dive? (remember that y gives the height above or below the divingboard) Y=5x^2+5x

Respuesta :

Answer:

Y + 7727 + = 999

Step-by-step explanation:

Because elena Is root and she had to jump hope this helps

Answer:

A.

0=-16t²+24t+40

using math

t=-1 or 5/2

can't be negative time

t=5/2

after 2.5 seconds

Step-by-step explanation:

Hope this helps:)

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