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algol13
3 years ago
8

Fourth-grade classrooms in several elementary schools are randomly assigned to different antibullying training programs at the b

eginning of the school year. The school district keeps track of the number of incidents of bullying in each classroom.
This study is an example of __________ study.
Mathematics
1 answer:
Anastasy [175]3 years ago
5 0

Answer:

experimental study.

Step-by-step explanation:

This study is an example of an experimental study.

The type of training program is the independent variable. The number of incidents of bullying is the dependent variable.

Since the participants of our study are affected directly in the research (the fourth-grade children) by not training against anti-bullying, the study is experimental research.

An independent variable is one that is somehow controlled or adjusted to evaluate the effects of a different variable, the dependent. Since we control whether we do bullying training here or not, our kind of training program is our independent variable, which is our dependent variable since we measure its impact on instances of bullying no.

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Katyanochek1 [597]

Triangles are similar and only differ in size meaning they are dilated

So first we have to find the scale factor of dilation (by how much the smaller triangle got bigger)

Find scale factor:

2.4a=4.8

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Find x:

we multiply the original side of the small side with the scale factor of 2

2.8(2)=x

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So, x=5.6

8 0
1 year ago
Sammy and David were selling water bottles to raise money for new football uniforms famous or 5 water bottles for every 3 water
ANTONII [103]
In the given question, we come to know that Sammy sold 5 bottles for every 3 water bottles sold by David. In this case we get the ratio as 5:3
Now this ratio indicates that the total number of bottles can be divided into 8 parts for finding out a single part. the total number of water bottles that are sold by Sammy and David together are 160.
Now on dividing this total number of bottles by 8 we get the 20 as one part.
The,
Number of Bottles sold by Sammy = 5 * 20
                                                         = 100
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So Sammy sold 100 water bottles and David sold 60 water bottles from the total of 160 water bottles.
8 0
3 years ago
What number can be add to <br><img src="https://tex.z-dn.net/?f=%20%7B9x%7D%5E%7B2%7D%20%20%2B%2024x" id="TexFormula1" title=" {
4vir4ik [10]

The required number will be 16

the expression will be like :

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  • (3x + 4) {}^{2}

hope it helps you cap !!

Anti - Venom

5 0
3 years ago
For what values of x and y are the triangles to the right congruent by HL?
denis23 [38]
Yes it is hl because thats what it is
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3 years ago
One-eighth a number is two more than one-fourth the number. What is the number? A. −16 B. −4 C. 8 D. 16
Elenna [48]

Answer:

\mathrm{A}

Step-by-step explanation:

Let that number be x.

1/8x=2+1/4x

1/8x-1/4x=2

-1/8x=2

x=2 \times -8/1

x=-16

4 0
3 years ago
Read 2 more answers
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