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Elenna [48]
3 years ago
10

A researcher posts a newspaper advertisement offering $10 in exchange for participation in a short study. The researcher accepts

the first 10 people who respond to the advertisement. Which of the following statements is true about the sample? (5 points)
Group of answer choices

It is not a valid sample because it is only a short study.

It is a valid sample because money is offered to participants.

It is a valid sample because the first 10 people were selected to participate.

It is not a valid sample because it is not a random sample of the population.
Mathematics
1 answer:
jonny [76]3 years ago
8 0

Answer:

I think these two are right.

it is a valid sample because money is offered to participants.

it is a valid sample because the first 10 people were selected to participate.

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If the number of condos in Indiana was the same as those in Texas (with respect to population), how many would we expect in Indi
gavmur [86]

Answer:

  • B. 2922

Step-by-step explanation:

<u>Number of condos per million in Indiana:</u>

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<u>If the population in Indiana was 28.7 million, the number of condos would be:</u>

  • 101.81*28.7 = 2922

Correct option is B.

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Flauer [41]
Area of a trapezoid is found with the formula, A=(a+b)/2 x h.
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What is the answer to 7-3x=34
fenix001 [56]

Answer:

x=-9

Step-by-step explanation:

1. 7-3x=34

2. Subtract 7 from both sides to get -3x=27

3. Divide by -3 from both sides to get x by itself which turns out to be x=-9, for 27÷(-3)=-9

5 0
4 years ago
A. Why does the provided equation support the fact that there is a horizontal asymptote of F(x) that is not
aniked [119]

Applying limits, it is found that since a \neq 0, \frac{a}{2} \neq 0, and hence the <u>horizontal asymptote is not y = 0</u>, thus not being on the x-axis.

The function is given by:

F(x) = \frac{(ax - 3)(x - 2)}{2(x + 3)(x - 2)}

The horizontal asymptote is the <u>limit of the function as x goes to infinity</u>, hence:

y = \lim_{x \rigtharrow \infty} F(x) = \lim_{x \rigtharrow \infty} \frac{(ax - 3)(x - 2)}{2(x + 3)(x - 2)}

Considering only the terms with the highest exponents:

y = \lim_{x \rigtharrow \infty} \frac{ax^2}{2x^2} = \frac{a}{2}

Since a \neq 0, \frac{a}{2} \neq 0, and hence the <u>horizontal asymptote is not y = 0</u>, thus not being on the x-axis.

For more on <em>horizontal asymptotes and limits</em>, you can check brainly.com/question/11598999

3 0
3 years ago
Please help me with number 55 &amp; 56. I need the answer very quick.<br>Use the point-slope formula
AlekseyPX
55.
The only type of line with undefined slope is a vertical line.
In a vertical line, all points have the same x-coordinate.
The general equation of a vertical line is x = k, where k is the x-coordinate of all points on the line. If you are given one point, then you know the x-coordinate of that point, but since all points have the same x-coordinate, you also know the x-coordinate of all points.

Equation is: x = -6

56.
Same explanation as above.
x = 2
7 0
4 years ago
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