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ikadub [295]
3 years ago
14

1/3(4+18)-2 to the second power

Mathematics
1 answer:
skad [1K]3 years ago
3 0

Answer:

3.33333333333

or

10          

 —— = 3.33333

 3            

Step by step solution :

Step  1  :

Equation at the end of step  1  :

  1          

 (— • 22) -  22

  3          

Step  2  :

           1

Simplify   —

           3

Equation at the end of step  2  :

  1          

 (— • 22) -  22

  3          

Step  3  :

Rewriting the whole as an Equivalent Fraction :

3.1   Subtracting a whole from a fraction

Rewrite the whole as a fraction using  3  as the denominator :

         22     22 • 3

   22 =  ——  =  ——————

         1        3  

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

3.2       Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

22 - (22 • 3)     10

—————————————  =  ——

      3           3

Final result :

 10          

 —— = 3.33333

 3            

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Philip Morris wishes to determine if there is a difference between the proportion of women and proportion of men who smoke cigar
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Answer:

Step-by-step explanation:

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p1 - p2 = difference in the proportion of women and men who smoke.

The null hypothesis is

H0 : p1 = p2

p1 - p2 = 0

The alternative hypothesis is

Ha : p1 > p2

p1 - p2 > 0

it is a right tailed test

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Where

x represents number of success(number of complaints)

n represents number of samples

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x1 = 14

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x2 = 7

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The pooled proportion, pc is

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z = (p1 - p2)/√pc(1 - pc)(1/n1 + 1/n2)

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From the options given, the test statistic is

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8 0
3 years ago
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Answer:

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Step-by-step explanation:

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