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Andrei [34K]
3 years ago
11

An independent variable is ___. A. directly changed by the experimenter B. manipulated by changes to the dependent variable C. a

variable that is kept constant D. a variable that is used as a control
Mathematics
2 answers:
Nikitich [7]3 years ago
7 0

Correct answer choice is :


<h2>A) Directly changed by the experimenter</h2><h2 /><h2>Explanation:</h2><h2 />

In mathematical modeling, analytical modeling and experimental sciences, the values of dependent variables depend on the values of independent variables. The dependent variables describe the output or outcome whose change is being examined. An independent variable seldom named an experimental or predictor variable, is a variable that is being formed in an experiment in order to inspect the impact on a dependent variable, sometimes described as an outcome variable.

kaheart [24]3 years ago
4 0

Answer:

the answer is actually B -manipulated by changes to the independent variable. (on the practice) and A (on the quiz)

Step-by-step explanation:

weird but i just did both of them

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lys-0071 [83]

Answer:

x ≤ 13 2/5 and y ≥ 6 2/3

Step-by-step explanation:

system of equations would be:

x + y ≤ 20

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Use the graph of the quadratic function to identify the solutions when y = 0.
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The answer is A I had this on my test in math class earlier on my math test
3 0
3 years ago
Which sign makes the statement true? (3 × 7) 21 = 1
Aleksandr-060686 [28]

The sign that would make the statement true is the division sign which would then make the full expression, (3 × 7) ÷ 21 = 1.

<h3>How to find the sign?</h3>

The statement given is (3 × 7) 21 = 1. There is therefore a need to find the sign that would be between the brackets and "21" which would lead to the answer being 1.

The brackets have to be solved first according to the PEMDAS rule which calls for parenthesis being solved first.

Solving the expression in the brackets gives:

= 3 x 7

= 21

We therefore need a sign that when related to 21 would give the result, 1.

The only sign that can relate 21 to 21 such that the answer would be 1, is division:
= 21 / 21

= 1

In conclusion, the sign that would make the statement true is a division sign.

Find out more on mathematical signs at brainly.com/question/24034494

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8 0
1 year ago
What is the slope of the line that passes through the points (9, -7)<br> and (-10, -10)?
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Answer:

sorry I don't know I want to tell but I can't

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3 years ago
3(x+7)+12x-7(x+1)+9-4x<br> Need answer and explaintion
seraphim [82]

Answer:

4

x

+

23

Step-by-step explanation:

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