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nataly862011 [7]
3 years ago
6

What expression is equivalent to 3(6x-2)+2(x+5)

Mathematics
2 answers:
katen-ka-za [31]3 years ago
6 0
3(6x-2)+ 2(x+5)
= 3*(6x)-3*2 +2x +2*5 (distributive property)
= 18x -6 +2x +10
= (18x +2x) +(10-6)
= 20x +4

The final answer is 20x+4.

Hope this helps~
inessss [21]3 years ago
4 0
3(6x-2)+2(x+5)=18x-6+2x+10=20x+4=4(5x+1)
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1. $ \mu = \$306,500 $

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5. \sigma_x = \$ 2,000 \\\\

Step-by-step explanation:

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Since the sample size is quite large then according to the central limit theorem, the sample mean is approximately normally distributed.

The sample mean would be the same as the population mean  that is

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The sample standard deviation is given by

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\sigma_x = \frac{24,500}{\sqrt{150} }  \\\\\sigma_x = \$ 2,000 \\\\

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1. $ \mu = \$306,500 $

2. \sigma = \$24,500

3. n = 150

4. $ \mu_{x}= \mu = \$306,500 $

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