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Travka [436]
3 years ago
12

Dr. Martinez is studying the effects of diet on mental alertness. Each morning for two weeks, participants in Dr. Martinez's stu

dy eat a breakfast that is either high in carbohydrates or high in protein. Dr. Martinez then measures the participants' abilities to solve geometry problems. What is the dependent variable in this study?
Social Studies
1 answer:
Setler79 [48]3 years ago
3 0

Answer:

The correct answer is: The participants' abilities to solve geometry problems.

Explanation:

Researches contain both dependent and independent variables.

In a research the dependent variable is the variable that the researcher wants to identify if it changes by modifying the independent variables.

Independent variables are multiple factors that if modified they may or may not change the dependent variable.

In this particular case, Dr Martinez wants to prove the effects of diet on mental alertness. He proceeds to instruct the participants to eat breakfast that's either high in carbohydrates or high in protein (Independent variables) and then Dr. Martinez then measures the participants abilities to solve geometry problems (Dependent variable).

In conclusion, the dependent variable in this study is: Participants' abilities to solve geometry problems.

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The message passed across in Campbell Soup Company's ad, suggested that it was okay for girls to eat foods with low calorie intake but they should avoid high calorie intake foods.

<u>This ad passed across a message to young girls to worry about their weights and how they look physically.</u>

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Which Mexican states border Guatemala?
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Campeche Tampas Tabasco
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Why did soviet leader Mikhail Gorbachev introduce economic and political reforms?​
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<h2>To appeal to the dissatisfied, multi-ethnic population of the Soviet Union.</h2>

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In March 1985, Mikhail Gorbachev proposed policies of <em>perestroika </em>(restructuring) and <em>glasnost</em> (openness) in the Soviet Union.  These seemed like policies that leaned in the direction of Western ways of economics and politics.  <em>Perestroika </em>meant allowing some measure of private enterprise in the Soviet Union.  <em>Glasnost </em>meant allowing a bit of freedom in regard to speech and publication.   Gorbachev was not trying to get rid of the Soviet communist system.  He actually was trying to prop it up and preserve it, because it was starting to have many problems sustaining itself, and there was too much dissatisfaction and dissent occurring among the country's people.  But in the end, opening things up a bit with <em>perestroika </em>and <em>glasnost</em> policies pushed the USSR further in the direction of shedding the communist model under which it had lived for so long, and would begin to spell the end of the USSR.

8 0
3 years ago
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Rewrite 4-x=2x-3/2x in the quadratic form. solve for x algebraiclly
worty [1.4K]
4x^2+2x^2-8x-3=0 6x2-8x-3=0
( 2 X+ 3 ) (. 3 X - 1 )
It's unsolvable with this way so use x=-b+-rootb^2-4ac/2a. X=2/3(+-)1/6 root34

Let's solve your equation step-by-step.
6
x
2
8
x
3
0
Step 1: Use quadratic formula with a=6, b=-8, c=-3.
x
b
b
2
4
a
c
2
a
x
8
8
2
4
6
3
2
6
x
8
136
12
x
2
3
1
6
34
or
x
2
3
1
6
34
Answer:
x
2
3
1
6
34
or
x
2
3
1
6
34

8 0
3 years ago
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