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Nonamiya [84]
3 years ago
8

Find the reference angle of

=" \frac{ - \pi}{7} " alt=" \frac{ - \pi}{7} " align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Semenov [28]3 years ago
3 0

Answer:

π7

Step-by-step explanation:

since  is in the first quadrant, the reference angle is π7

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-8m+(-15)+4m-2r-10 ?
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Answer:

- 4m - 2r - 25

Step-by-step explanation:

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collect the like terms beginning with the positives

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2 years ago
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Using side lengths only, could the triangles be similar? Triangle X Y Z. Side X Y is 1.5, X Z is 1, Z Y is 2. Triangle Q S R. Si
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Answer:

  no

Step-by-step explanation:

In ∆XYZ, we can write the ratios of the sides from shortest to longest as ...

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Based on side lengths only, the triangles cannot be similar.

__

<em>Additional note</em>

Even if shortest-to-longest side ratios were the same, the triangle naming is incorrect for them to be similar.

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