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dem82 [27]
2 years ago
11

Need help on this as soon as you can please

Mathematics
1 answer:
Marina CMI [18]2 years ago
8 0

Answer:

x+5

Step-by-step explanation:

4x -3x= 1x or x

115-110= 5

x+5

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Find the measure of angle n​
qwelly [4]

Answer:

m angle N = 160 degree

Step-by-step explanation:

THANKS FOR SHARING YOUR QUESTION

6 0
3 years ago
Read 2 more answers
6.Suppose the Gallup Organization wants to estimate the population proportion of those who think there should be a law that woul
drek231 [11]

Answer:

A sample of n = (\frac{1.96\sqrt{0.3696*0.6304}}{E})^2 is needed, in which E is the desired margin of error, as a proportion. If we find a decimal value, we round up to the next whole number.

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

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is of:

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

In a previous study of 1012 randomly chosen respondents, 374 said that there should be such a law.

This means that n = 1012, \pi = \frac{374}{1012} = 0.3696

95% confidence level

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

How large a sample size is needed to be 95% confident with a margin of error of E?

A sample size of n is needed, and n is found when M = E.

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

E = 1.96\sqrt{\frac{0.3696*0.6304}{n}}

E\sqrt{n} = 1.96\sqrt{0.3696*0.6304}

\sqrt{n} = \frac{1.96\sqrt{0.3696*0.6304}}{E}

(\sqrt{n})^2 = (\frac{1.96\sqrt{0.3696*0.6304}}{E})^2

n = (\frac{1.96\sqrt{0.3696*0.6304}}{E})^2

A sample of n = (\frac{1.96\sqrt{0.3696*0.6304}}{E})^2 is needed, in which E is the desired margin of error, as a proportion. If we find a decimal value, we round up to the next whole number.

4 0
3 years ago
6. In his car, John can drive 75 miles on 5 gallons of gas. He drove
Brilliant_brown [7]

Answer: 55 Miles

Step-by-step explanation:

75x11=825

11x5=55

6 0
2 years ago
Simplify -3(y+5)+3(2y+6)
likoan [24]
-3(y + 5) + 3(2y + 6)
-3y - 15 + 6y + 18
3y + 3

Answer:
3y + 3

Hope this helps.
5 0
3 years ago
Read 2 more answers
The dimensions are <br> 60ft length<br> 6ft high<br> 45ft wide
cestrela7 [59]
First multiply 60 x 6 x 45 = 16,200
Then divide, 16,200/350=46.2857
7 0
3 years ago
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