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ValentinkaMS [17]
1 year ago
12

Leslie is running for a political office. She wants to poll adults in her district to understand their stances on various issues

relevant to the upcoming election. Members of her campaign will contact randomly chosen adults by telephone.
Which of these is the best example of undercoverage?
Choose 1 answer:

A:Some adults chosen won't answer the phone.


B:If her campaign chooses numbers from the phonebook, they won't contact adults with unlisted numbers and adults who only use cell phones.

C:Some adults who answer the phone may choose to not participate in the poll.

D:They might contact people who aren't registered voters in that district.

E:People may not give accurate answers to the questions depending on how they are worded.
Mathematics
1 answer:
Liula [17]1 year ago
6 0
Believe it’s a right
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Tom supports North Storm Football Club. At the match between North Storm and West Stanford there were 71,167 spectators. If 41,1
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Answer:
30,058 spectator

Explanation:
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We are given that:
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Which of the following shows the extraneous solution to the logarithmic equation? log Subscript 4 Baseline (x) + log Subscript 4
vekshin1

<u>Given:</u>

The given equation is \log _{4}(x)+\log _{4}(x-3)=\log _{4}(-7 x+21)

We need to determine the extraneous solution of the equation.

<u>Solving the equation:</u>

To determine the extraneous solution, we shall first solve the given equation.

Applying the log rule \log _{c}(a)+\log _{c}(b)=\log _{c}(a b), we get;

\log _{4}(x(x-3))=\log _{4}(-7 x+21)

Again applying the log rule, if \log _{b}(f(x))=\log _{b}(g(x)) then f(x)=g(x)

Thus, we have;

x(x-3)=-7 x+21

Simplifying the equation, we get;

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Factoring the equation, we get;

(x-3)(x+7)=0

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The extraneous solutions are the solutions that does not work in the original equation.

Now, to determine the extraneous solution, let us substitute x = 3 and x = -7 in the original equation.

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Undefined = Undefined

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Thus, the solution x = 3 does not work in the original equation.

Hence, x = 3 is an extraneous solution.

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\log _{4}(-7)+\log _{4}(-7-3)=\log _{4}(-7(-7)+21)

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