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Mariana [72]
2 years ago
15

Find the arc of the circle

Mathematics
1 answer:
gogolik [260]2 years ago
6 0

Answer:

The Arc of the circle is 12.

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3.) Duncan spent $70 and now has<br> $120. How much money did he have<br> before spending the 70?
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He started with $190

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How many groups of ten are there in 230?
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I am pretty sure the answer is 23

Step-by-step explanation:

The answer is 23 because if you multiply 23 by 10 you get 230 which is the same if you divided 230 by 10 and you get 23.

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Recomend a good singer <br> Im into like chill beats
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Tipling rock, Tame impala, Fleetwood mac, Bülow and the neighborhood, the song daddy issues is really good

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A cognitive psychologist would like to evaluate the claim that the omega-3 fatty acids can help improve memory in normal adult h
bogdanovich [222]

Answer:

(a)

  • Independent Variable- Dosage of Omega-3 Fatty Acids
  • Dependent Variable - Number of news item remembered

(b)Discrete

(c)Ratio Scale and Discrete Variable

(d) Experimental Method

Step-by-step explanation:

The psychologist wants to evaluate the claim that omega-3 fatty acids can help improve memory in normal adult humans.

(a)In the study, the participants in the two groups were given fish extracts containing Omega-3 (500 mg) and no Omega-3 (0 mg).

The memory test involves measuring the number of items each participant remembers from the past three weeks of news.

Therefore:

  • Independent Variable- Dosage of Omega-3
  • Dependent Variable - Number of news item remembered

(b) The dependent variable is discrete since the number of news items remembered can only be whole numbers.

(c)The independent variable is in milligrams of Omega-3 where the placebo is 0 mg. This is a ratio scale since it has an absolute zero.

Since the dosage is given in multiples of 50mg, it is a discrete variable.

(d)Since the psychologist seeks to manipulate the conditions of the study by introducing Omega-3 to some of the participants and placebo to other participants, it is an experimental distribution.

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3 years ago
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