A sociologist conducts an experiment to see how watching a documentary on young men in gay relationships affects individual attitudes toward gay marriage. Both men and women are given a survey, but only those in the experimental group watch the video before answering the survey questions. Identify the dependent variables in this experiment.\

Answers

Answer 1

Answer:

Answer:

those people in the experimental group who watch the video.

Step-by-step explanation:

A dependent variable is defined as a variable for which the value depends on the other factors. A change in the depended variable in an experiment changes the result of the experiment or the research.

In the context, a sociologist who conducts an experiment to see the affect on the relationship in the young men after watching a video. Here the dependent variable are the young men and women who are given the video to watch before they answer the question.

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Which equation is y = 3(x – 2)2 – (x – 5)2 rewritten in vertex form?

Answers

expand
y=3(x^2-4x+4)-(x^2-10x+25)
y=3x^2-12x+12-x^2+10x-25
y=3x^2-x^2-12x+10x+12-25
y=2x^2-2x-13
complete the square

y=2(x^2-x)-13
y=2(x^2-x+1/4-1/4)-13
y=2((x-1/2)^2-1/4)-13
y=2(x-1/2)^2-1/2-13
y=2(y-0.5)^2-13.5

Answer: D

y=2(x-1/2)^2 - 27/2

A small box weighs 1 25 pounds. A large box weighs 3 1/3 time as much as the small box. how much does the large box weigh?

Answers

Answer:

416.7pounds

Step-by-step explanation:

Given parameters:

Weight of the small box = 125pounds

Unknown:

Weight of the larger box = ?

Solution:

The large box weighs $3(1)/(3)$ times as the small box:

So;

= 125pounds x $(10)/(3)$

= 416.7pounds

C=5(y-8) solve for y

Answers

Answer:

The steps to do this :

$c = 5(y - 8)$

$c = 5y - 40$

$c + 40 = 5y$

$y = (c + 40)/(5)$

steps:
1. distribute 5 to y and 8 so you get c= 5y-40
2. subtract 40 over (c-40=5y)
3. finally divide by 5, getting you c-8=y :))

What is the discriminant of the quadratic equation 2x + 5x2 = 1?–18
–16
22
24

Answers

Applying it's formula, the discriminant of the quadratic equation 2x + 5x² is given of 24.

What is the discriminant of a quadratic equation?

A quadratic equation is modeled by:

$y = ax^2 + bx + c$

The discriminant is:

$\Delta = b^2 - 4ac$

In this problem, the equation is:

2x + 5x² = 1.

In standard form:

5x² + 2x - 1 = 0.

Hence the coefficients are a = 5, b = 2, c = -1, and the discriminant is given by:

$\Delta = b^2 - 4ac = (2)^2 - 4(5)(1) = 4 + 20 = 24$ .

More can be learned about discriminant at brainly.com/question/19776811

#SPJ2

Hello,

Answer D

Δ=2²-4*5*(-1)=4+20=24

What is the cosine of 135 degrees?

Answers

$cos135^o=cos(90^o+45^o)=-sin45^o=-(\sqrt2)/(2)\n\nreduction\ formulas:\ cos(90^o+\alpha)=-sin\alpha$

$cos(180^0- \alpha )=-cos \alpha \n \n cos135^0=cos(180^0-45^0)=-cos45^0=- ( √(2) )/(2)$

Suppose you choose a marble from a bag containing 3 red marbles, 3 white marbles, and 5 blue marbles. You return the first marble to the bag and then choose again. Find P(red and blue).

Answers

The answer is 15/121.

Since we have red AND blue, that means that both of these events occur, so we will use the multiplication rule and multiply these two probabilities:

- A probability of choosing a red marble: 3/11. (because there are 3 marbles out of total 11 marbles)
- A probability of choosing a blue marble after the red one: 5/11. (because there are 3 marbles out of total 11 marbles; there are 11 in total again because the first marble has been returned)

So, P(red and blue) is 3/11 * 5/11 = (3*5)/(11*11) = 15/121

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