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sukhopar [10]
3 years ago
13

Help find the value of x pls. No links! Y

Mathematics
1 answer:
Citrus2011 [14]3 years ago
4 0

=>7x+9=9x+5

=>7x+9-9=9x+5-9

=>7x=9x-4

=>7x-9x=9x-4-9x

=>-2x=-4

=>x=2

=>7x+9=7×2+9=23

=>9x+5=9×2+5=23

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3 0
2 years ago
In a simple random sample of 300 boards from this shipment, 12 fall outside these specifications. Calculate the lower confidence
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Answer:

The 95% confidence interval for the percentage of all boards in this shipment that fall outside the specification is (1.8%, 6.2%).

Step-by-step explanation:

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*Use a <em>z</em>-table.

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Step-by-step explanation:

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