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uysha [10]
3 years ago
7

the height of an object dropped from the top of a 320-meter building is given by h(t)= -5t^2+320. how long will it take the obje

ct to hit the ground
Mathematics
1 answer:
geniusboy [140]3 years ago
4 0
0=320-5t^2
320=5t^2
t^2=64
t^2=8^2
t=8
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