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Kipish [7]
3 years ago
15

Which matrix best represents the system of equations below?

Mathematics
1 answer:
Effectus [21]3 years ago
6 0

\left\{\begin{array}{ccc}-10x-9y+13z=12\\8x-7y-5z=15\\5x+4y-6z=-12\end{array}\right\\\\\begin{array}{ccc}\ \ \ \ x&\ \ \ y&\ \ z\end{array}\\\left[\begin{array}{ccc|c}-10&-9&13&12\\8&-7&-5&15\\5&4&-6&-12\end{array}\right]

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Tell me some irrational numbers​
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Answer:

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Step-by-step explanation:

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Sergeu [11.5K]

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х= 24,50*125/100 ≈ 30,63

2)we will find out how much the wallets cost after the price is reduced by 10%:

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Step-by-step explanation:

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3 years ago
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3 years ago
Dave bought a new game for $28. The tax rate was 7% How much was the tax and total price (if you can please add work I’m severel
LekaFEV [45]
Okay, let's find out how much the tax was by finding out what 7% of $28 is, we do this by multiplying:

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Multiply:

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3 years ago
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