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salantis [7]
2 years ago
14

Need help with this word problem!!!!

Mathematics
2 answers:
aev [14]2 years ago
6 0

Answer:

6 seconds after it is launched

Step-by-step explanation:

h(t) = -4t² + 16t + 48

The balloon is at ground level when it lands.

When it is launched, t = 0, and h(0) = 48

When it lands, at time t, h(t) = 0.

-4t² + 16t + 48 = 0

t² - 4t - 12 = 0

(t - 6)(t + 2) = 0

t = 6 or t = -2

The balloon will hit the ground 6 seconds after it is launched.

Crank2 years ago
3 0
Yup it’s 6 seconds!!
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