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Today at 11:31 AM
Mathematics

Answered

The height in feet of the projectile seconds after lunch is modeled by the equation h=32t - 16t2 how long after launch does the projectile return to the ground

Answer :

apologiabiology apologiabiology

Today at 11:37 AM

when h=0 is when it returns to the ground
solve

0=32t-16t^2
factor
0=16t(2-t)
set equal to zero

0=16t
0=t

0=2-t
t=2

at t=0 and 2
it returns after 2 seconds

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