2 years ago

Answer quickly thank you so much!!!!!!!!!!!!!!!!!!!!!

1 answer:

marin [14]2 years ago

3 0

The answer is C I think

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Natalka [10]

Answer:

Step-by-step explanation:

$\det\left[\begin{array}{ccc}a&b\\c&d\end{array}\right] =ad-bc\\\\\det\left[\begin{array}{ccc}3&-5\\1&1\end{array}\right] =(3)(1)+(-5)(1)=3-5=-2$

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nadezda [96]

2.4= 2 4/10 which simplifies to 2 2/5

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3 years ago

Step2247 [10]

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Step-by-step explanation:

When lines intersect and are perpendicular. that means the angle of intersection is 90 degrees.

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kirill115 [55]

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satela [25.4K]

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Step-by-step explanation:

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