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Aleksandr-060686 [28]
3 years ago
13

The eight segments from the center of a cube to the eight corners of the cube form the edges of six pyramids. If one edge of the

cube is 4 in, what is the volume of each pyramid, to the nearest cubic inch?
Mathematics
1 answer:
Valentin [98]3 years ago
3 0

Here's link to the answer:

tinyurl.com/wpazsebu

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On Saturday a souvenir shop had 125 customers.Sixty Four percent of the costumers paid with a credit card. How many costumers pa
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Step-by-step explanation:

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BRAINLIEST!!! Can someone tell me how to graph inequalities?
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whichever way the opening of the sign points go the opposite. if it is less than or equal to, closed circle

Step-by-step explanation:

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Find the value of A and B what theorem did you use
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A university dean is interested in determining the proportion of students who receive some sort of financial aid. Rather than ex
Olenka [21]

Answer:

a

 The  90% confidence interval that  estimate the true proportion of students who receive financial aid is

     0.533  <  p <  0.64

b

   n = 1789

Step-by-step explanation:

Considering question a

From the question we are told that

      The sample size is  n = 200

      The number of student that receives financial aid is k = 118

Generally the sample proportion is  

      \^ p = \frac{k}{n}

=>   \^ p = \frac{118}{200}

=>   \^ p = 0.59

From the question we are told the confidence level is  90% , hence the level of significance is    

      \alpha = (100 - 90 ) \%

=>   \alpha = 0.10

Generally from the normal distribution table the critical value  of \frac{\alpha }{2}  is  

   Z_{\frac{\alpha }{2} } =  1.645

Generally the margin of error is mathematically represented as  

     E =  Z_{\frac{\alpha }{2} } * \sqrt{\frac{\^ p (1- \^ p)}{n} }

 =>E =  1.645 * \sqrt{\frac{0.59 (1- 0.59)}{200} }

=>  E = 0.057

Generally 90% confidence interval is mathematically represented as  

      \^ p -E <  p <  \^ p +E

  =>  0.533  <  p <  0.64  

Considering question b

From the question we are told that

    The margin of error  is  E = 0.03

From the question we are told the confidence level is  99% , hence the level of significance is    

      \alpha = (100 - 99 ) \%

=>   \alpha = 0.01

Generally from the normal distribution table the critical value  of   is  

   Z_{\frac{\alpha }{2} } = 2.58

Generally the sample size is mathematically represented as      

        [\frac{Z_{\frac{\alpha }{2} }}{E} ]^2 * \^ p (1 - \^ p )

=>      n = [\frac{2.58}{0.03} ]^2 * 0.59 (1 - 0.59 )

=>      n = 1789

8 0
2 years ago
Yana and Amber play a word game using tile letters. Each person takes 7 tiles from a set of tiles. Points are earned by using th
aleksley [76]

Answer:

A Yana's average number of points is 0.5 points greater than Amber's

Step-by-step explanation:

i added up all of Yana's points = 15

I added up all of Amber's points = 12

then i divided them both by 6 because there is 6 numbers total so then i got

Yana = 2.5 Amber = 2


2.5 - 2 = 0.5 so Yana's average number of points is 0.5 points greater than Amber's

:}

8 0
3 years ago
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