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Karolina [17]
3 years ago
9

Dale is trying to buy a Dr. Pepper from a vending machine. When he pushes the button nothing happens. Dale pushes the button mul

tiple times over the course of the next thirty seconds before accepting that it does not work. Later, Dale still does not want to give up on his Dr. Pepper. He remembers that one time he held the button down for ten seconds, which resulted in him getting his drink. He decides to try this. This is an example of _______________.
Social Studies
1 answer:
Afina-wow [57]3 years ago
3 0

Answer: this is an example of <u>operant variability.</u>

Explanation:

Operant variability means that results of an operation may vary so responses are sometimes easy to predict, at other times responding seems highly variable, unpredictable, or even random. The inability to predict is generally attributed to ignorance of controlling variables.

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PLEASE HELP ME!!! IM GIVING 50 POINTS!!!
Alex777 [14]

Formula:

Hydrogen Chloride = HCl                                             (Chemical Compound)

Sodium = Na                                                                   (Chemical Element)

Reactants:

A simple definition of a reactant can be the substances that go into a chemical reaction. By substances I mean any chemical.

Products:

A simple definition of a product can be the substances produced at the end of the reaction. Again by substances I mean any chemical.

Definition of the answer:

We know that Sodium is a Chemical Element and as decribed in the picture it was mixed by Hydrogen Chloride and we know that is a Chemical Compound. So in this case the Na CI can be the product that was produced at the last and it was the result after the chemical reaction was taken place. The reactant can be the Sodium. I chose that because Reactant is a substance/chemical that goes into a chemical reaction. So as seen in the picture it went into the beaker.

Hope this helps.

8 0
3 years ago
Read 2 more answers
Does your school respect for diversity ? How?<br><br>​
gregori [183]
Its asking if your school accepts the differences in other people
3 0
3 years ago
In randomized, double-blind clinical trials of a new vaccine, monkeys were randomly divided into two groups. Subjects in group 1
Mama L [17]

The correct answer is B.

<u>Therefore the appropiate null and alternative hypothesis are the following:</u>

. H 0 : p 1 = p 2

H 1 : p 1 ≠ p 2

The aim of the test would be to conclude whether H0 should be rejected or not at a 10% significance level.

<u>In this case a billateral significance test needs to be conducted,</u> as such a test consists on testing the equality of the test value with a given value. In this case the H0 would be rejected if the test value is significanly different, both in the case that it is superior or inferior.

On the contrary, an unilateral significance test would have been conducted if  aiming to check whether a value is superior or equal to the test value (left unilateral) or inferior or equal to this value (right unilateral).

Then, the result of the test is the one stated: rejecting H0 at the 10% significance level.

5 0
3 years ago
Sofia has prepared her speech in great detail. She is practicing to deliver it from a brief set of notes, and every time she goe
blsea [12.9K]

Answer: C. Extemporaneous

Explanation:

Extemporaneous is giving a speech either offhand or without following exact preparation. This is the kind of delivery Sofia is planning.

5 0
3 years ago
In which hemispheres is the state of Georgia located?
erastova [34]

Answer:

North Hemisphere in North America

8 0
3 years ago
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