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Mathematics, 08.12.2020 19:30 vanvalenpeyt

In \triangle MNO,△MNO, \overline{NO}\cong \overline{MN} NO ≅ MN and \text{m}\angle M = 42^{\circ}.m∠M=42 ∘ . Find \text{m}\angle O. m∠O.

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Answers: 2
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Answer from: Quest
The answer would be the second choice : )
ansver
Answer from: Quest

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

\begin{bmatrix}1 & 0 &  0& |5 \\ 0&  2&  0&  |8\\ 0&  0& 3&  |9\end{bmatrix}

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

\begin{bmatrix}1 &  0 & 0& |5 \\ 0&  1& 0&  |4\\0& 0& 1&  |3\end{bmatrix}

What is the next step in solving this augmented matrix using gauss-jordan elimination method
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Answer from: Quest

it would open into a square depending on the type of envelope i’m not sure about the second part

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In \triangle MNO,△MNO, \overline{NO}\cong \overline{MN} NO ≅ MN and \text{m}\angle M = 42^{\circ}.m∠...
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