3 years ago

Please help me with 1-8 thank you :)

Mathematics

1 answer:

Mekhanik [1.2K]3 years ago

4 0

-7 is the answer is the antithesis

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an arrow is shot vertically upward from a platform 33ft high at a rate of 174 ft/sec. when will the arrow hit the ground?

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Answer:

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at the ground h = 0

hence; -16t2 + 186t + 43 = 0

solving this quadratic equation using the quadratic formula ; a = -16, b = 186, c = 43 ; x = (-b +-(b2 - 4ac)1/2)/2a

gives t = 11.8 seconds to the nearest tenth (note that the negative root has no practical significance)

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