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Orlov [11]
3 years ago
13

Select the ordered pair that is the solution of this equation: -7x – 4y = 6

Mathematics
1 answer:
Olegator [25]3 years ago
4 0
Its just a matter of subbing

-7x - 4y = 6....subbing in (-2,2)...x = -2 and y = 2
-7(-2) - 4(2) = 6
14 - 8 = 6
6 = 6 (correct)

so ur solution is (-2,2)
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Step-by-step explanation:

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Nataly_w [17]

Answer:

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Step-by-step explanation:

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A sample of n is needed, and n is found when M = 4. So

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4 = 1.96\frac{\sigma}{\sqrt{n}}

4\sqrt{n} = 1.96\sqrt{\sigma}

\sqrt{n} = \frac{1.96\sqrt{\sigma}}{4}

(\sqrt{n})^2 = (\frac{1.96\sqrt{\sigma}}{4})^2

n = (\frac{1.96\sqrt{\sigma}}{4})^2

The minimum sample size needed is n = (\frac{1.96\sqrt{\sigma}}{4})^2. If n is a decimal number, it is rounded up to the next integer. \sigma is the standard deviation of the population.

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7 0
2 years ago
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Phoenix [80]
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3 0
3 years ago
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<img src="https://tex.z-dn.net/?f=%20%7B10%7D%5Ex%20%3D%205" id="TexFormula1" title=" {10}^x = 5" alt=" {10}^x = 5" align="absmi
My name is Ann [436]

Answer:

below

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applying log to both sides

xlog 10 = log5

x = 0•699

8 0
3 years ago
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