The function h(t)=-16t2+32t+128 represents the height of a cnnoj ball in feet t seconds after it is shot from a cannon. how many seconds does it take the cannonball to hot its target on thr grownd

4 seconds

Step-by-step explanation:

To solve this problem you will use the quadratic formula: .

Identify the a, b, and c values of the given quadratic equation:

Substitute these values into the quadratic formula.

Now split this into two equations.

Positive case:

Negative case:

Since time cannot be negative, the cannonball takes 4 seconds to hit its target on the ground.

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

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step-by-step explanatio89