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ExtremeBDS [4]
2 years ago
5

Please solve asap pls x

Mathematics
2 answers:
mr Goodwill [35]2 years ago
5 0

Answer:

x=\frac{26}{5}

Step-by-step explanation:

\frac{10x+4}{7}=8

<u>Multiply both sides by 7:</u>

\longmapsto \frac{7\left(10x+4\right)}{7}=8\times \:7

\longmapsto 10x+4=56

<u>Subtract 4 from both sides:</u>

\longmapsto 10x+4-4=56-4

\longmapsto 10x=52

<u>Divide both sides by 10:</u>

\longmapsto \frac{10x}{10}=\frac{52}{10}

\longmapsto x=\frac{26}{5}

_____________________

olga nikolaevna [1]2 years ago
3 0

Answer:

<em>x = </em>5.2 or 26/5

Step-by-step explanation:

First, Multiply both sides by 7...

You would get 10<em>x  + </em> 4 = 56

Next, subtract 4 from each side...

You would get 10<em>x = </em>52

Then, Divide both sides by 10, and get...

x = 26/5

As a decimal, it would be 5.2

Therefore, x = 5.2

<em>-kiniwih425</em>

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Answer:

CI(99%) = ( 0.93 , 2.07)

Therefore at 99% confidence interval (a,b) = ( 0.93 , 2.07)

Critical value z(at 99% confidence) = z(0.005) = 2.58

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

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Step-by-step explanation:

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