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Tom [10]
3 years ago
5

PLEASE PLEASE HELP AND PLEASE DON'T GUESS AND SHOW YOUR WORK THANK YOU!!!!!!!!!

Mathematics
2 answers:
FinnZ [79.3K]3 years ago
4 0
Would it be distribution were you multiply the three in? -3(b-7) -3*b and -3*-7 where your answer would be -3b+21
4vir4ik [10]3 years ago
3 0
The answer would be -3-7
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A survey of 1050 eligible voters, an approximate 98% confidence interval estimate for the proportion of voters who claimed to ha
Novosadov [1.4K]

Answer:

There is a 98% confidence that the true proportion of voters who have voted in the last presidential election lies in this interval.

Step-by-step explanation:

The confidence interval for estimating the population proportion is:

CI=\hat p\pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}

The 98% confidence interval estimate for the proportion of voters who claimed to have voted in the last presidential election was (0.616, 0.681).

The sample taken was of size, <em>n</em> = 1050.

<u>Interpretation</u>:

The 98% confidence interval (0.616, 0.681) for the proportions of voters who claimed to have voted in the last presidential election implies that the true proportion of voters who have voted lies in this interval with 0.98 probability.

Or, there is a 98% confidence that the true proportion of voters who have voted in the last presidential election lies in this interval.

Or, if 100 such samples are taken and 100 such 98% confidence interval are made then 98 of these confidence intervals would consist of the true proportion of voters who have voted in the last presidential election.

8 0
3 years ago
dev knows he only has 8gallons of gasoline in the tank. he wants to go on a 300- mile trip. will he have to buy more gasoline? a
max2010maxim [7]
Yes you will need more gassoline
6 0
3 years ago
Read 2 more answers
Idk anymore what is life
Paul [167]
Easy, 491,022,004...
Hope that helps! :)
3 0
3 years ago
Read 2 more answers
Hey<br> see if u can help<br><br> Brainliest now!!!
Marianna [84]

Answer: (C) x² - 4x + 5 = 0

<u>Step-by-step explanation:</u>

   x = 2 ± i

⇒ x = 2 + i             and       x = 2 - i

⇒ x - (2 + i) = 0     and        x - (2 - i) = 0

 0 = (x - 2 - i)(x - 2 + i)

     = x(x - 2 + i)   -2(x - 2 + i)   -i(x - 2 + i)

     = x² - 2x +xi   -2x + 4 <u>- 2i</u>   -xi <u>+ 2i</u> - i²

     = x² - 4x + 4 - i²

     = x² - 4x + 4 -(-1)

     = x² - 4x + 5

***************************************************

Answer: B

Explanation:

The slope from (0, 0) to (1, 4) is a rise of 4 and a run of 1, thus, m = 4/1 = 4

5 0
3 years ago
Wysokości trójkąta równoramiennego przecinają się w punkcie P, którego odległość od każdego z ramion tego trójkąta wynosi 3√52.
ziro4ka [17]

Answer:

4

Step-by-step explanation:

3 0
4 years ago
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