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AysviL [449]
2 years ago
7

If an object is dropped from the height of 54 feet,

Mathematics
1 answer:
erastova [34]2 years ago
4 0

Answer:

b

Step-by-step explanation:

When the object hits the ground , the h = 0 , that is

- 16t² + 54 = 0 ( subtract 54 from both sides )

- 16t² = - 54 ( divide both sides by - 16 )

t² = \frac{54}{16} ( take square root of both sides )

t = \sqrt{\frac{54}{16} } ≈ 1.84 seconds ( to 2 dec. places )

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Step-by-step explanation:

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