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2 years ago

Can u plz help me i have 2 more to day after this one

Mathematics

2 answers:

gavmur [86]2 years ago

7 0

$\frac{5 {}^{2} \times {5}^{6} }{5 {}^{4} } \\ { \frac{5}{5 {}^{4} } }^{2 + 6} \\ \frac{ {5}^{8} }{5 {}^{4} } \\ 5 {}^{8 - 4} \\ 5 {}^{4}$

so 5⁴ is the answer

Shalnov [3]2 years ago

6 0

Answer:

$?=4$

Step-by-step explanation:

$\frac{5^2*5^6}{5^4}=5^?\\ \\\frac{5^{2+6}}{5^4}=5^?\\ \\\frac{5^8}{5^4}=5^?\\\\5^{8-4}=5^?\\\\5^4=5^?\\\\?=4$

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Answer:

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Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

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For this problem, we have that:

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$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.53 - 2.575\sqrt{\frac{0.53*0.47}{1004}} = 0.4894$

The upper limit of this interval is:

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The 99% confidence interval for the proportion of all American adults who blame Barack Obama a great deal or a moderate amount for U.S. economic problems is (0.4894, 0.5706)..

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3 years ago

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3 years ago

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