Compare two ways in which destructive relationships.

Control groups are used in scientific experiments because they

aliya0001 [1]

Answer:

C

Explanation:

It prevents other variables such as independent variables and extraneous variables from affecting the validity of results. It also makes it easier to compare results when variables are changed.

Hope this helps :)

4 0

2 years ago

Of the $10$ kids in a chess club, $5$ are left-handed and $5$ are right-handed. the club holds a round-robin tournament in which

Nataliya [291]

The total number of games a girl play against a boy is 25, the number of games a girl plays against a boy is 10, the fraction of the games are boy-versus-boy is 2/9, and 1/5 is the fraction of all games at the tournament Anita plays.

<h3>How to carry out Permutation and Combination?</h3>

We are given that there are 5 girls and 5 boys in a chess club.

Thus, total games that girls play against a boy = 5×5 = 25

The number of games a girl play against another is the total number of games = 10

The number of games that are boy vs boy = 10

The number of games Boy vs Boy + Girl vs Girl + Boy vs Girl = 10 + 10 + 25 = 45

Fraction of the games that are boy vs boy = 10/45 = 2/9

If Anita is one of the club members, then Anita will have to play against 9 people at the tournament.

Total number of games = 45

Then the fraction of all games at the tournament Anita play the game.= 9/45 ⇒ 1/5

Thus, the total number of games a girl play against a boy is 25, the number of games a girl plays against a boy is 10, the fraction of the games are boy-versus-boy is 2/9, and 1/5 fraction of all games at the tournament Anita plays.

Read more about Permutation and Combination at; brainly.com/question/4658834

#SPJ1

5 0

1 year ago

How does this even work?

Kitty [74]

Answer:

Tap the mic button and then speak.

8 0

3 years ago

The following equation estimates the average calories burned for a person when exercising, which is based on a scientific journa

Misha Larkins [42]

The program is an illustration of a sequential structure

<h3>What are sequential control structures?</h3>

Sequential control structures are programs that do not require loops and conditional statements

<h3>The actual program</h3>

The program in Python where comments are used to explain each line, is as follows:

#This gets input for age

age = int(input("Age: "))

#This gets input for weight

weight = (input("Weight: "))

#This gets input for the heart rate

heartRate = float(input("Heart Rate: "))

#This gets input for the time

time = int(input("Time: "))

#This calculates the calories burnt

calories = ((age * 0.2757) + (weight * 0.03295) + (heartRate * 1.0781) - 75.4991 ) * time / 8.368

#This prints the calories burnt

print('calories: {:. 2f} calories'. Format(calories))

Read more about similar programs at:

brainly.com/question/24833629

4 0

2 years ago

William julius wilson believes the cause of the emergence of an urban underclass is.

lapo4ka [179]

William Julius Wilson is known to be a popular man in history. William Julius Wilson believes the cause of the emergence of an urban underclass is economic and social structural deficits in society.

William Julius Wilson was known to be born December 20, 1935. He was a famous American sociologist. He stated the importance of neighborhood effects and also showed how small employment opportunities and weakened institutional resources influenced poverty within American inner-city neighborhoods.

The underclass is known to be a collection of identifying traits, such as high rate of joblessness, single parents births etc.

See full question below

William Julius Wilson believes the cause of the emergence of an urban underclass is

a. the "culture of poverty."

b. prejudice and racism.

c. economic and social structural deficits in society.

d. too much immigration from some areas.

6 0

3 years ago