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2 years ago

What factors of 10800 are not multiples of 6

Mathematics

1 answer:

Dahasolnce [82]2 years ago

8 0

Answer:

1,2,3,4,5,6,8,9,10,12,15,16,18,20,24,25,27,30,36,40,45,48,50,54,60,72,75,80,90,100,108,120,135,144,150,180,200,216,225,240,270,300,360,400,432,450,540,600,675,720,900,1080,1200,1350,1800,2160,2700,3600,5400,10800

Step-by-step explanation:

any one of these that doesn't 6 wont divide perfectly

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If they are using a 85% level of confidence, how large of a sample is required to estimate the mean usage of water?

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$0.14 = 1.44\frac{1.3}{\sqrt{n}}$

$0.14\sqrt{n} = 1.44*1.3$

$\sqrt{n} = \frac{1.44*1.3}{0.14}$

$(\sqrt{n})^2 = (\frac{1.44*1.3}{0.14})^2$

$n = 178.8$

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A sample of 179 is needed.

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