1 year ago

Need help with geometry!!!!!!! hurryyyy!!

Mathematics

1 answer:

MakcuM [25]1 year ago

6 0

Answer:

#8 - substitution property of equality

hop this helps! <3

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The matrix given is:

$\left[\begin{array}{ccc}-15&21&h\\5&-7&-3\end{array}\right]$

Transform this matrix in a row-echelon form:

$\left[\begin{array}{ccc}-15&21&h\\5&-7&-3\end{array}\right]$ $R_{2} = 3R_{2}+R_{1}$ $\left[\begin{array}{ccc}-15&21&h\\0&0&-9+h\end{array}\right]$

For this row-echelon form to have solutions:

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For this system to be consistent: h = 9.

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Answer:

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Step-by-step explanation:

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