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Lyrx [107]
3 years ago
6

Solution of inequality -2/5x-9<9/10

Mathematics
1 answer:
Phantasy [73]3 years ago
5 0
- \frac{2}{5}x-9\ \textless \  \frac{9}{10}   \\(- \frac{2}{5}x-9\ \textless \  \frac{9}{10} )*10 \\ -4x-90\ \textless \ 9 \\ -4x\ \textless \ 9+90 \\ x\ \textgreater \  -\frac{99}{4}
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Answer:

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Step-by-step explanation:

Done on apex, it is correct.

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3 years ago
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3 years ago
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There isn't enough info to prove the triangles to be congruent or not. So we can't say for sure either way.

We have angle CAD = angle ACB given by the arc markings, and we know that AC = AC due to the reflexive theorem. However we are missing one third piece of information.

That third piece of info could be....

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Since we don't know any of those three facts, we simply don't have enough information.

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3 years ago
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