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Illusion [34]
3 years ago
5

Research participants drank either caffeinated or decaffeinated beverages in a study of the effects of caffeine on anxiety level

s. Those who received the caffeinated drinks were assigned to the ________ group.
Mathematics
1 answer:
viktelen [127]3 years ago
7 0

Answer:

Experimental group

Step-by-step explanation:

In a  psychology experiment, the test gathering (or trial condition) alludes to the gathering of members who are presented to the free factor. These members get or are presented to the treatment variable.  

The free factor is changed in the exploratory gathering.

For example : A human test gathering could get another prescription, an alternate type of advising, or some nutrient enhancements

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Solve the inequality:<br><br> 3/10 is greater than or equal to k - 3/5
Ostrovityanka [42]

To solve the inequality 3/10 is greater than or equal to k - 3/5, we must first set it up. Since 3/10 is greater than or equal to something, we will have a greater than or equal to symbol, with the 'mouth' pointing towards 3/10. Setting this up we get:

3/10 ≥ k - 3/5

Now we want to get k by itself on one side. We can do this by adding 3/5 to each side.

3/10 + 3/5 ≥ k

Simplify

9/10 ≥ k

3 0
3 years ago
What is the interquartile range (IQR) of the data summarized on the box plot?
andreev551 [17]
C) 30 * IQR is the box. So the highest point on the box is 95 and the lowest is 65, which makes the difference 30. I hope this helped!!
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3 years ago
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Dvide. Give the quotient and the remainder.<br> 838/8
fiasKO [112]

Answer:

quotion is 104 and remainder is 6

4 0
2 years ago
What is the measure, in degrees, of ∠x in the figure?
gizmo_the_mogwai [7]

Answer:

I believe the answer is 127 degrees.  

Step-by-step explanation:

Please give brainliest.

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3 years ago
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Element X is a radioactive isotope such that every 90 years, its mass decreases by half. Given that the initial mass of a sample
steposvetlana [31]

Answer:

approximately 27 grams

Work Shown:

Half life formula

y = A*(0.5)^(x/H)

where,

A = starting amount = 30 grams

H = half life period = 90 years

x = number of years that pass by = 12

y = amount left over after x years

Let's plug the values for x, A and H into the formula to find y

y = A*(0.5)^(x/H)

y = 30*(0.5)^(12/90)

y = 27.3516746567466

y = 27 .... rounding to the nearest whole number

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3 years ago
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