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Sergeeva-Olga [200]
3 years ago
9

Who is the current president of America ?​

Social Studies
2 answers:
vichka [17]3 years ago
8 0

Answer:

<h2>Donald Trump is the current president of United states of America. </h2>

Andrej [43]3 years ago
7 0
The president is Donald J. Trump
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A researcher designs a study to determine whether female preschoolers prefer sweetened or unsweetened cereal. The researcher use
Nimfa-mama [501]

Answer:

The researcher is confounding the sweetness of the cereal and the colour of the cereal.

Explanation:

Based on the results, it would be unclear if the subjects prefer the cereal because of the colour or because of the sweetness --it is only the latter the researcher wants to know about. This would be the dependent variable.

To fix this, the researcher should use the same colour for both sweetened and unsweetened cereal and have each preschooler try both. It is possible to colect data through observation (look at the children's reactions) or simply asking for their opinions at the end of the experiment.

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3 years ago
Describe the differences between the early and later periods of the medieval castles
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The first keeps were rectangular in shape but later ones were often circular. The Stone Keep would be surrounded by a thick stone wall containing turrets for lookouts. The Bailey was now the area outside the keep but within the outer walls and shelter for animals or craft workshops might be built against the walls.

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3 years ago
Which of the following completes the chart?
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A.nafta should be the answer
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3 years ago
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To improve your presentation you should:________
tia_tia [17]

Answer:

D. You should smile, express enthusiasm, and explain your purpose in a presentation.

Explanation:

  • To improve the presentation you should be more expressive and show enthusiasm and explain your purpose and intent to the audience clearly and thus a good presentation should be first practiced and established the purpose giving the presentation with the aims and the objective should be clearly defined also one needs to analyze the audience.
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3 years ago
Your best friend frequently suffers from severe headaches. You have noticed that your friend consumes a great deal of diet cola,
timofeeve [1]

Answer:

Check Explanation.

Explanation:

So, the question is about a research or an experiment on whether the intake of cola causes a lot of or severe headaches. And I will be using myself as the control experiment. Please note that I just did not want to use myself as the control experiment but because the question ask us to. That is the use of "single case design" which means that the person performing the experiment must use himself or herself as the control experiment instead of using another person.

Step one => I will make sure to know how often or how many times I do do get headaches.

Step two => I will then stop taking the cola, but after sometimes I will continue taking the cola back.

Using the single case design, I can test for my Hypothesis using the following steps;

For step two above, if during the period that I stopped taking cola, I did not have any headache and immediately I start taking the cola I started developing headaches, then

it is true that the artificial sweetener in the cola is responsible for the headaches.

To the second part of the question; I expect to find that that the artificial sweetener in the cola is responsible for the headaches.

My conclusion will be that the artificial sweetener in the cola is responsible for the headaches.

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3 years ago
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