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9966 [12]
3 years ago
8

Solve the equation 5x+2-x=-4x

Mathematics
2 answers:
AVprozaik [17]3 years ago
8 0
5x + 2 -x = -4x

4x +2 = -4x

2 = -4x -4x

2 = -8x

x = - 1/4


hope this helps
Taya2010 [7]3 years ago
6 0
X = <span><span>−1/4  ( fraction )</span></span>
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An air transport association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maxim
Flura [38]

Answer:

The 95% confidence interval estimate of the population mean rating for Miami is (6.0, 7.5).

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for the population mean, when the population standard deviation is not provided is:

CI=\bar x \pm t_{\alpha/2, (n-1)}\cdot \frac{s}{\sqrt{n}}

The sample selected is of size, <em>n</em> = 50.

The critical value of <em>t</em> for 95% confidence level and (<em>n</em> - 1) = 49 degrees of freedom is:

t_{\alpha/2, (n-1)}=t_{0.05/2, 49}\approx t_{0.025, 60}=2.000

*Use a <em>t</em>-table.

Compute the sample mean and sample standard deviation as follows:

\bar x=\frac{1}{n}\sum X=\frac{1}{50}\times [1+5+6+...+10]=6.76\\\\s=\sqrt{\frac{1}{n-1}\sum (x-\bar x)^{2}}=\sqrt{\frac{1}{49}\times 31.12}=2.552

Compute the 95% confidence interval estimate of the population mean rating for Miami as follows:

CI=\bar x \pm t_{\alpha/2, (n-1)}\cdot \frac{s}{\sqrt{n}}

     =6.76\pm 2.000\times \frac{2.552}{\sqrt{50}}\\\\=6.76\pm 0.722\\\\=(6.038, 7.482)\\\\\approx (6.0, 7.5)

Thus, the 95% confidence interval estimate of the population mean rating for Miami is (6.0, 7.5).

7 0
2 years ago
write the point slope form of the equation for a line that passes through the point 3, 1 and is parallel to the line y=3x+3
Galina-37 [17]

Answer:

y=3x-8

Step-by-step explanation:

If the line is parallel to y=3x+3, that would mean that they would have the same slope of 3. Then, once you plug it back into the equation along with the point given, you would get 1=3(3)+b. Solve from there, and you get b= -8. In conclusion, your point slope formula comes out to be y=3x-8.

Hope this helps! :)

4 0
2 years ago
Someone please help with this and explain your answer!!! I will give brainliest if correct!
Radda [10]

Answer:

the answer is a.

Step-by-step explanation:

3 0
2 years ago
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What is the answer for number 12
GalinKa [24]
(3*4)+(1*7)/7*4 = 12+7/28 = 19/28

your answer is 19/28
4 0
2 years ago
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Math question 2! Thanks if you help
Greeley [361]

Answer: 15.6 m

Step-by-step explanation:

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C=√[144+100]

C=√[244]= 15.6 m

6 0
3 years ago
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