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3 years ago

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An object is dropped from a height of 400 feet. The amount of time, in seconds, the object takes to hit the ground can be found

by solving the equation -16t^2+400=0 . How many seconds will it take to hit the ground?

1 answer:

lidiya [134]3 years ago

6 0

-16t^2+400=0

16t^2=400

take square root on both sides.

$\sqrt{16t^2} =\sqrt{400}$

4t=20

t=20/4

t=5

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Flauer [41]

Answer:

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Amanda [17]

Answer:

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Step-by-step explanation:

from the figure,

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Again,

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perpendicular of right angle triangle(p)=8

we also know,

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2 years ago

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Gnoma [55]

Answer:

The surface of the prism is 84m²

Step-by-step explanation:

You have 4 figures here (two the same triangles)

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3*6= 18m²

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4*6 = 24m²

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You need to determine the square of the triangles from the Heron's formula.

Heron's formula states that the area of a triangle whose sides have lengths a, b, and c is

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So the surface of the prism is a total sum of all surfaces:

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2 years ago

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Marianna [84]

9514 1404 393

Answer:

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Step-by-step explanation:

Use the function definition with the given arguments.

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Answer:

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