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Ostrovityanka [42]
3 years ago
7

PLS HELP ME ASAP FOR 17!! (MUST SHOW WORK!!/ STEPS!!) +LOTS OF POINTS!! *brainliest*

Mathematics
1 answer:
azamat3 years ago
8 0
You must distribute first.
8 times (3x-2)= 24x-16
2 times (12x-5.5)= 24x-11
What you have left is
(24x-16)-(24x-11)
24x-24x=0
-16- -11=-5
The answer is -5
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Step-by-step explanation:

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Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.10} = \pm 1.64

100 \pm 1.64(\frac{15}{\sqrt{n}} ) = (98,102)

100 \pm 1.64(\displaystyle\frac{15}{\sqrt{n}} ) = (98,102)\\\\1.64(\frac{15}{\sqrt{n}} ) = 2\\\\n = 151.29 \approx 151

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