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2 years ago

14

A polling firm is conducting research on Internet use by calling the landline telephone of every tenth person listed in a local

phone book. What bias may exist in the method they are using to do the poll?

1 answer:

denis-greek [22]2 years ago

7 0

Younger people don't own landline telephones so you are limiting your voter demographic to older people by calling them more than younger people.

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elena-s [515]

Answer:

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Step-by-step explanation:

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Solve absolute value equation 2|x-3|-8=2

Semmy [17]

Answer:

$x=8, -2$

Step-by-step explanation:

$2|x-3|-8=2$

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2 years ago

Which function below is the inverse of f(x)= 3x+5/7

Ipatiy [6.2K]

Inverse
replace f(x) wih y
solve for x
replace x with f⁻¹(x) and y with x

so

f(x)=3x+5/7
replace
y=3x+5/7
solve for x
minnus 5/7 both sides
y-5/7=3x
divide both sides by 3
$\frac{y- \frac{5}{7} }{3}$ =x
replace with f⁻¹(x)

f⁻¹(x)= $\frac{y- \frac{5}{7} }{3}$

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slavikrds [6]

Answer:

15

Step-by-step explanation:

5/15=3/v

5v=15×3

5v=75

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