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julia-pushkina [17]
3 years ago
13

Please help...Need help asap

Mathematics
1 answer:
luda_lava [24]3 years ago
6 0

Answer:

1) $242.47

2) \frac{5}{27}

3) $1.63

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Data accumulated by the National Climatic Data Center shows that the average wind speed in miles per hour for St. Louis,Missouri
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Answer:

The  value is  \sigma  =  8.5    

Step-by-step explanation:

From the question we are told that

  The  population mean is  \mu  =  9.7

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   The value considered is  x =  11.6

Generally given that the speed measurement is normally distributed we have that

   P(X >  11.6) =  P(\frac{ X - \mu }{ \sigma } >  \frac{11.6 - 9.7}{ \sigma } )  = 0.2245

Generally

   \frac{X - \mu}{ \sigma }  = Z(The  \ z -score \ of \  X )

P(X >  11.6) =  P(Z>  \frac{11.6 - 9.7}{ \sigma } )  = 0.2245

Hence

     \frac{ 11.6 - 9.7}{ \sigma}  =  0.2245

  \sigma  =  8.5      

6 0
3 years ago
How are inequalities and equations alike and different?
wel
Inequalities and equations are alike in that they both involve two sides of a sign (whether it is an equal sign or an inequality sign) being compared.  For example, both y = x + 2 and y > x + 2 are just ways of comparing the values of x and y.

They are different in that equations give a set number of definite answers (such as x = 2 and y = 3), while inequalities give an infinite number of answers (such as every number from 3 to infinity).  Equations give a definite value to a variable, while inequalities give infinite possibilities, cutting out the regions that are impossible.
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4 years ago
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mixas84 [53]

Answer:

4/7 of purple paint is red paint.

Step-by-step explanation:

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