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Rina8888 [55]
3 years ago
5

-3 + 4x = 41 What's x

Mathematics
2 answers:
marusya05 [52]3 years ago
3 0
Move the -3 to the other side which makes it 41 + 3 = 44

So now the equation looks like 4x=44

Now divide 44 by 4, equals 11

x=11
Bond [772]3 years ago
3 0

Answer:

x=11 I hope it helps you

Step-by-step explanation:

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A student wanted to construct a 95% confidence interval for the average age of students in her statistics class. She randomly se
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Answer: (17.42, 20.78)

Step-by-step explanation:

As per given , we have

Sample size : n= 9

\overline{x}=19.1 years

Population standard deviation is not given , so it follows t-distribution.

Sample standard deviation : s= 1.5 years

Confidence level : 99% or 0.99

Significance level : \alpha= 1-0.99=0.01

Degree of freedom : df= 8  (∵df =n-1)

Critical value : t_c=t_{(\alpha/2,\ df)}=t_{0.005,\ 8}= 3.355

The 99% confidence interval for the population mean would be :-

\overline{x}\pm t_c\dfrac{s}{\sqrt{n}}

19.1\pm (3.355)\dfrac{1.5}{\sqrt{ 9}}\\\\=19.1\pm1.6775\\\\=(19.1-1.6775,\ 19.1+1.6775)\\\\=(17.4225,\ 20.7775)\approx(17.42,\ 20.78)

Hence, the 99% confidence interval for the population mean is (17.42, 20.78) .

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If you take a class and have three marking periods in the class and in the first period your average grade was a 85.56 the secon
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What is 5^4 equal please help me.
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The correct product should have been:
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So, the answer is:
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