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galben [10]
3 years ago
13

Julio is selecting a random sample of people to survey for a newspaper article. Which elements are important for Julio to consid

er when choosing a random sample? Select three options.
the size of the population
the size of the sample
the characteristics and demographics of the population
the probable responses to the survey questions from the population
the probable responses to the survey questions from the sample
Mathematics
2 answers:
Keith_Richards [23]3 years ago
7 0

Answer:

A, B, and C

Step-by-step explanation:

Fofino [41]3 years ago
5 0

Answer:

Step-by-step explanation:

Answer:

It say the size of population characteristics

Step-by-step explanation:

Because  it makes sense those are I need

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10 x 7 thousands unit form
coldgirl [10]

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70

Step-by-step explanation:

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A lawn mowing service charges customers a flat fee plus an hourly rate for their services. The expression 55x + 15 is used to ca
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5 0
3 years ago
Read 2 more answers
A(x) = -0.015x^3+1.05xA ( x ) = − 0.015 x 3 + 1.05 x gives the alcohol level in an average person's blood x hrs after drinking 8
goldfiish [28.3K]

Answer:

Yes

Step-by-step explanation:

the function that gives the alcohol level is:

A ( x ) = - 0.015 x^3 + 1.05 x

where x is the number of hours.

we need to know if after 4 hours an average person is legally drunk, thus:

x=4

and we substitute this in the function:

A ( 4 ) = - 0.015 (4)^ 3 + 1.05(4)

solving these operations we obtain:

A(4)=-0.015(64)+4.2\\A(4)=-0.96+4.2

A(4)=3.24

the alcohol level after 4 hours is 3.24.

Since a person is considered to be legally drunk if the level exceeds 1.5, and we obtained 3.24 which is greater than 1.5, a person who has been drinking for 4 hours under the conditions indicated by the problem would be considered legally drunk.

5 0
3 years ago
5x(2x-y) -3y(2+3x) expand and simplify​
OleMash [197]

Answer:

10x² - 14xy -6y

Step-by-step explanation:

5x(2x-y)-3y(2+3x)

10x²-5xy-6y-9xy

10x² - 14xy - 6y

5 0
3 years ago
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