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forsale [732]
3 years ago
10

5392.7 in scientific notation​

Mathematics
2 answers:
Rama09 [41]3 years ago
7 0
Answer:
5.3927 x 10^3

Step by step explanation:
elena-s [515]3 years ago
6 0
Answer:

5392.7 re-written in scientific notation is...
5.3927 x 10^3
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Uf bguvhbacndkzvhsdvnjsdbsdvbs help
bagirrra123 [75]

Answer:

3 + 2 = 5

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Step-by-step explanation:

Solve in parenthesis first then do exponents then perform the subtraction.

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6 0
3 years ago
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The length of a rectangle is 3 1/6 cm longer than the width. The perimeter of the rectangle is 15 1/3 cm. What are the width and
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8 0
3 years ago
Eric wants to estimate the percentage of elementary school children who have a social media account. He surveys 450 elementary s
tigry1 [53]
<h2>Answer with explanation:</h2>

The confidence interval for population mean is given by :-

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

, where \hat{p} is the sample proportion, n is the sample size , z_{\alpha/2} is the critical z-value.

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Given : Significance level : \alpha:1-0.99=0.01

Sample size : n=450

Critical value : z_{\alpha/2}=2.576

Sample proportion: \hat{p}=\dfrac{280}{450}\approx0.62

Now, the  99% confidence level will be :

\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.62\pm(2.576)\sqrt{\dfrac{0.62(1-0.62)}{450}}\\\\\approx0.62\pm0.023\\\\=(0.62-0.023,\ 0.62+0.023)=(0.597,\ 0.643)

Hence, the  99% confidence interval is (0.597,\ 0.643)

6 0
3 years ago
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Slav-nsk [51]

Answer:

x = -2

Step-by-step explanation:

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4 0
3 years ago
Of all rectangles with a perimeter of 7​, which one has the maximum​ area? (give the​ dimensions.)
Elena L [17]
The rectangle with maximum area will actually be a square.

Each side will be of length  7/4 = 1 3/4.
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3 years ago
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