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olga nikolaevna [1]
3 years ago
9

Why are some rocks and minerals valuable and others are not?

English
1 answer:
Rus_ich [418]3 years ago
8 0
Because some are special for example the metamorphic rocks have crystals in it
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As per convention:
- the angle at A is named A, the angle at B is named B, and the angle at C is named C
- the side of leght a is the side opposed to A, the side of length b is opposed to B, and the side of length c is opposed to C.

Now just state the law of cosines:

c^2 = a^2 + b^2 - 2ab cos(C)

Also, a^2 = c^2 + b^2 - 2bc cos (A)

And, b^2 = a^2 + c^2 - 2ac cos (B)

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Need help With These! Please!​
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Answer:

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Explanation:

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Which statement most accurately describes the aesthetic impact of the<br>excerpt?​
Tamiku [17]

Answer:

is it this???

Explanation:

Read the following passage from F. Scott Fitzgerald's The Great Gatsby:

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I believe that the line which could be considered as main theme is: “They ought to cherish a nobler ambition and by their abilities and virtues exact respect”.

 

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4 0
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