3 years ago

Please help with this question!

Mathematics

1 answer:

Nostrana [21]3 years ago

7 0

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a ) Two matrices cannot be multiplied.

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b )

The answer is | 20 - 4 - 12 |

| 8 2 19 - |

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Please help!!!!!!! Will mark brainliest

netineya [11]

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Step-by-step explanation:

$\displaystyle ±7 = \sqrt{49} \\ \\ -7 = x + 2\:\:AND\:\:7 = x + 2 \\ \\ -9, 5 = x$

Sinse you want the POSITIVE solution, your answer is 5.

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