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Kitty [74]
3 years ago
5

A black line is longer than a gray line. The gray line is longer than a white line. Is the black line shorter or longer than the

white line? Draw to prove your answer.
Mathematics
1 answer:
enot [183]3 years ago
4 0
The gray line is longer than the white line.
The black line is longer than the gray line.

White    -------------------------

Gray      ------------------------------------------

Black     --------------------------------------------------------

Answer: The black line is longer than the white line.
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A tunnel is 300 feet deep and makes an angle of 30 with the ground .
Goshia [24]

Answer:

\boxed{C.\:\: 600\:feet}

Step-by-step explanation:


The tunnel, the ground and the depth of the tunnel form a right angle triangle.

The length of the tunnel is the hypotenuse of the right triangle that has been formed.


Let the length of the tunnel be m\: feet.


Using the sine ratio, we obtain;


\sin(30\degree)=\frac{Opposite}{Hypotenuse}


The length of the opposite side is 300\:feet


We substitute the given values to obtain;


\sin(30\degree)=\frac{300}{m}


\Rightarrow \frac{1}{2}=\frac{300}{m}


We cross multiply to obtain;


m=300\times2


m=600\:feet


Therefore the correct answer is C.


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Answer:

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Step-by-step explanation:

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2 years ago
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Vika [28.1K]

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Answer:

Correct Comparison:

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Incorrect Comparison:

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