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Dmitriy789 [7]
3 years ago
13

A local hardware business wishes to find out how many of the local residents would use a delivery service. They call every tenth

person in the local listings of the phone book.
Which type of sampling is used?

A. convenience

B. stratified

C. cluster

D. systematic
Mathematics
2 answers:
White raven [17]3 years ago
7 0
It is systematic because they are going every tenth person
vova2212 [387]3 years ago
4 0
The answer is systematic

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The ratio of money in Terry's bank account to Faye's bank account was 3:7.
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Answer:

£390

Step-by-step explanation:

 The ratio of money in bank:

        Terry  :    Faye

             3      :     7

Terry put £220 in his account

Faye withdrew £300 from her account

 Unknown:

Initial amount Terry had = ?

Solution:

 Let the real amount terry has = 3x

  Faye will have = 7x

Now;

        3x + 220  = 7x -300

 Solving this equation:

         3x + 220  = 7x -300

       3x - 7x = -300 - 220  

           -4x  = - 520

             4x = 520

               x = 130

Originally, Terry has 3x = 3 x 130 = £390

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Your question was incomplete. Please refer the content below:

One factor of a polynomial is (x+1) . which expression represents the other factor, or factors, of the polynomial 2 x² + 3 x + 1 ?

We get that if one factor of the polynomial 2 x² + 3 x + 1 is (x+1), then the other factor is (2x+1).

Factor means that we have to split an expression into multiple values and make the power of the variable linear.

For a quadratic equation, there will be 2 factors.

We have the polynomial

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Using middle term splitting, we get that:

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Taking common factor:

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= (2 x + 1)( x + 1)

Therefore, we get that if one factor of the polynomial 2 x² + 3 x + 1 is (x+1), then the other factor is (2x+1).

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Answer:

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In other words: all the way around a circle divided by all the way across it.

The symbol is π (pi)

No matter how large or small the circle, its circumference is always π times its diameter.

π = 3.14159265358979323846... (the digits go on forever without repeating)

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