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gavmur [86]
3 years ago
8

(5x +252 +X+5) + (x+4)

Mathematics
2 answers:
makkiz [27]3 years ago
7 0

Answer:

7x + 261

Step-by-step explanation:

(5x + x + x) + ( 252 + 5 + 4)

7x + 261

nikdorinn [45]3 years ago
5 0

Answer: 7x + 261

Step-by-step explanation:

(5x + 252 + x + 5) + (x + 4)

5x + 252 + x + 5 + x + 4 (get rid of parenthesis)

7x + 261 (combine like terms)

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2y=5x+2c

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es 29.5?

Step-by-step explanation:

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3 years ago
How to write 3482000000 in scientific notation
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3 0
3 years ago
Read 2 more answers
Use the sample data and confidence level to construct the confidence interval estimate of the population proportion p. n equals
Alekssandra [29.7K]

Answer:

(0.767,0.833)

Step-by-step explanation:

The 95% confidence interval for population proportion p can be computed as

p-z_{\frac{\alpha }{2} } \sqrt{\frac{pq}{n} }

The z-value associated with 95% confidence level is 1.96.

whereas p=x/n

We are given that x=440 and n=550.

p=440/550=0.8

0.8-1.96\sqrt{\frac{0.8(0.2)}{550} }

0.8-1.96\sqrt{\frac{0.16}{550} }

0.8-1.96\sqrt{0.00029 }

0.8-1.96(0.01706)

0.8-0.03343

0.76657

Thus, the required confidence interval is

0.767<P<0.833  (rounded to 3 decimal places)

Hence, we are 95% confident that our true population proportion will lie in the interval (0.767,0.833)

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Answer:

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Step-by-step explanation:

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