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kifflom [539]
1 year ago
9

Which are samples that are appropriate to survey regarding how the city’s residents feel about building a new youth center? Sele

ct all that apply.
Mathematics
1 answer:
Murrr4er [49]1 year ago
5 0

The  samples that are appropriate to survey regarding how the city’s residents feel about building a new youth center are:

  • 100 residents who live near the proposed site for the youth center.
  • 50 children at each of the city’s four elementary schools.
  • 100 parents of children at each of the city’s four elementary schools.

<h3>What is sample?</h3>

Sample can be defined as the way  of randomly collecting data or information from a group of population so as to draw or reach a conclusion.

Most researcher tend to collect sample when carrying out a survey in which they will then examine, analyze and evaluate the sample they collected before reaching a conclusion.

When a researcher want to carryout survey so as to know how the  resident of a city feel about building a new youth center. The researcher has to collect the survey sample from :

  • 100 residents who live near the proposed site for the youth center.
  • 50 children at each of the city’s four elementary schools.
  • 100 parents of children at each of the city’s four elementary schools.

Therefore the correct option is B,D,E.

Learn more about sample here:brainly.com/question/8483057

#SPJ1

The complete question is:

Which are samples that are appropriate to survey regarding how the city’s residents feel about building a new youth center? Select all that apply.

10 names selected from the city phone book.

100 residents who live near the proposed site for the youth center.

100 tourists at the city park last Friday.

50 children at each of the city’s four elementary schools.

100 parents of children at each of the city’s four elementary schools.

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A rectangular pool 18 meters by 12 meters is surrounded by a walkway of width x
vesna_86 [32]

Answer:

x=3 meters

Step-by-step explanation:

step 1

Find the area of the rectangular pool

A=LW

we have

L=18\ m\\W=12\ m

substitute

A=18(12)=216\ m^2

step 2

Find the area of rectangular pool including the area of the walkway

Let

x ----> the width of the walkway

we have

L=(18+2x)\ m\\W=(12+2x)\ m

substitute

A=(18+2x)(12+2x)

step 3

Find the area of the walkway

To find out the area of the walkway subtract the area of the pool from the area of rectangular pool including the area of the walkway

so

A=(18+2x)(12+2x)-216

step 4

Find the value of x if the area of the walkway equal the area of the pool

so

(18+2x)(12+2x)-216=216

Solve for x

(18+2x)(12+2x)=432\\216+36x+24x+4x^{2}=432\\4x^{2} +60x-216=0

Solve the quadratic equation by graphing

The solution is x=3 meters

see the attached figure

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3 years ago
Max has a science test on Thursday. On Monday he studied 2/9 of the material. On Tuesday he studied 1/4 of the remaining materia
wolverine [178]

Answer:

The answer to your question is:

Fraction he has review =  17/36

Fraction he have to study = 19/36

Step-by-step explanation:

Data

Monday studied = 2/9

Tuesday = 1/4

Fraction he has review = ?

Fraction he has left = ?

Process

As the denominator is 9, consider the whole is 9.

Then:    Fraction left on Monday = 9/9 - 2/9

                                                      = 7 / 9

Fraction left on Tuesday = 7/9 - 1/4

                                         = (28 - 9) / 36

                                        = 19 / 36

Fraction he has review =  17/36

Fraction he have to study = 19/36

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