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tamaranim1 [39]
3 years ago
10

About useful mineral substance

Geography
1 answer:
jek_recluse [69]3 years ago
5 0
A mineral<span> or rock that contains a </span>useful substance<span> that can be mined for a profit. metallic elements that turn into liquid, flow into weaknesses in rocks, and become solid in the rock.</span>
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Which of the following is NOT a natural cause of erosion?
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Is this accurate? Somalia is 233 miles northeast of Ethiopia, while Salalah, Oman is 385 miles northwest from Yemen.
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Somalia is 233 miles northeast of Ethiopia - False;

Salalah, Oman is 385 miles northwest from Yemen - False;

The distance between the two East African nations of Somalia and Ethiopia is actually 0 miles. The reason for that is that these two countries share a border, thus there is no distance between their territories, apart from the imaginary line that is the border.

Salalah, Oman is 384 miles away from Yemen, but it is not toward the northwest, instead it is toward the northeast. Oman as whole is located on the northeast of Yemen, thus Yemen comes to located southwest of Oman.

5 0
3 years ago
From the top of a building 42 feet high, the angle of depression to a car stopped on the ground it is 27°. What is the distance
Marrrta [24]

Answer:

82.43\ \text{feet}

Explanation:

Angle of depression = 27^{\circ}

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p = Distance from the car to the base of the building

From the trigonometric identities we get

\tan\theta=\dfrac{p}{b}\\\Rightarrow p=b\tan\theta\\\Rightarrow p=42\tan63^{\circ}\\\Rightarrow p=82.43\ \text{feet}

The distance from the car to the base of the building is 82.43\ \text{feet}.

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