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Neko [114]
3 years ago
9

12) x – 5 – 10x = -50

Mathematics
2 answers:
frozen [14]3 years ago
7 0

Answer:

The answer is -5

Step-by-step explanation:

We pass the X to one side of the equation and the whole numbers to the other:

x – 5 – 10x = -50

-9x = -50 +5

x= (-45)/9

x=-5

alexandr1967 [171]3 years ago
3 0

We can start off by moving all variables to one side:

x - 5 - 10x = -50

x - 10x = -50 + 5

-9x = 45

x = -5

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Answer:

The 95%  confidence interval is  0.0112 <  \mu_m - \mu_f < 0.1288

Step-by-step explanation:

From  the question we are told that  

      The  sample  mean difference is  \= x_m - \= x_f  =  0.07

       The  standard error  is  SE  =  0.03

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               \alpha  =  100 -  95

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Next  we obtain the critical value of  \frac{\alpha }{2} from the normal distribution table, the value is  Z_{\frac{\alpha }{2} } =  1.96

Generally the margin of error is mathematically represented as

         E =  Z_{\frac{ \alpha }{2} } *  SE

substituting values

         E =  1.96 *  0.03

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The 95% confidence interval  is mathematically represented as

      (\= x_m - \= x_f  ) - E  <  \mu_m - \mu_f

substituting values

     0.07 - 0.0588  <  \mu_m - \mu_f

    0.0112 <  \mu_m - \mu_f < 0.1288

     

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