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qaws [65]
3 years ago
15

Hilda wants to save 825 digital photographs in an online album. Each folder of the album can save 6 photographs. She uses divisi

on to find out how many
full folders she will have. In what places is the first digit of the quotient.
Mathematics
1 answer:
Tresset [83]3 years ago
5 0
<span>Hilda wants to save 825 digital photograph in an online album.
Each folder of the said album can only save 6 photographs.
Now, let’s find out how many pages of the album will Hilda need to be able to store the 825 photograph,
=> According to the problem, she used division to get the answer.
Solution
=> how many 6s are there in 825:
=> 825 / 6
=> 137.5
The first digit in the quotient is in hundreds place.

</span>



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Answer:

The margin of error for the 95% confidence interval used to estimate the population proportion is of 0.0209.

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.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

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The margin of error is of:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

In a clinical test with 2161 subjects, 1214 showed improvement from the treatment.

This means that n = 2161, \pi = \frac{1214}{2161} = 0.5618

95% confidence level

So \alpha = 0.05, z is the value of Z that has a p-value of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

Margin of error:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

M = 1.96\sqrt{\frac{0.5618*0.4382}{2161}}

M = 0.0209

The margin of error for the 95% confidence interval used to estimate the population proportion is of 0.0209.

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3 years ago
Multiply 3x (2x - 1)​
Volgvan

Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Perpendicular H = √Hypotenuse² - Base²

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Step-by-step explanation:

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