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jasenka [17]
3 years ago
9

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. They randomly

assigned 20 participants to either a control group or a relaxation training group and recorded the change in number of headaches each group reported the week before training to the week after training (the control group received no training). Which statistical analysis would we perform to see whether the training helped the participants in that group as compared to the control group
Mathematics
1 answer:
wolverine [178]3 years ago
3 0
A line graph or a chart table
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Jubal wrote the four equations below. He examined them, without solving them, to determine which equation has no solution.
umka2103 [35]

Answer:

3x + 2 = 3x - 2

Step-by-step explanation:

4 0
2 years ago
What digit is in the tenths place in this number? 904.18
Y_Kistochka [10]
Hundreds - 9
Tens - 0
Ones - 4
Decimal point - .
Tenths - 1
Hundredths - 8

Hope this helped!
6 0
3 years ago
18) Solve the system. 0.4x - 0.1y = 2 0.2x + 0.5y = 1 A) (5, 0) B) (0, 5) C) (-5, 0) Eliminate D) (3, -10) please help me its ex
Artemon [7]
To solve the set of equations given above, we can use the substitution method where we substitute one equation to the other and solving for one variable. We do as follows:

<span>0.4x - 0.1y = 2
x = 5 + 0.25y

0.2x + 0.5y = 1
</span>0.2(5 + 0.25y)+ 0.5y = 1
y = 0
x = 5

Therefore, the correct answer from the choices is option A, (5,0).
6 0
3 years ago
Read 2 more answers
Johnny and Cage are working together to mold figurines for a craft fair. They already have 8 figurines which were left from the
alukav5142 [94]

Answer:

See Explanation

Step-by-step explanation:

Given

Initial = 8

Increment = 3 (every hour)

Required

Explain why it is linear

First, we need to determine the equation that represents the scenario

Let x be the number of hours worked and y be the number of figurines at x hours.

The equation is determined as follows:

y = Initial\ Figurines + Increment * x

This gives:

y = 8 + 3 * x

y = 8 + 3x

Reorder

y = 3x + 8

A linear equation is of the form

y = mx + b

By comparison,

y = mx + b is equivalent to y = 3x + 8

<em>Hence, we can conclude that the situation is linear</em>

8 0
3 years ago
Read 2 more answers
An athletic director pays $90 for 12 sun visors for the softball team. how much will the athletic director pay to buy 15 more su
Dvinal [7]
90/12=7.5. 

so.....

7.5 times 15 is 21.

That added to the orginal amount equals to : 111.

How much the athletic director will pay to buy 15 more sun visors is $111.

Hoped I helped!<span>

</span>
3 0
3 years ago
Read 2 more answers
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