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jarptica [38.1K]
3 years ago
8

Three groups of schoolchildren receive three different types of reading instruction for a school year. At the end of the year, s

tudents reading performance is measured. Identify the independent variable and dependent variable in the study.
Mathematics
1 answer:
ollegr [7]3 years ago
6 0

Answer:

types of reading instruction - independent variable

reading comprehension of students - dependent variable

Explanation:

When it comes to the "experimentation" of  a study, there are factors or variables that are being considered. These are <em>"independent variable</em>" and <em>"dependent variable."</em>

Independent variable refers to the variable that is being controlled. This affects the dependent variable. The influence of the independent variable on the dependent variable is <u>very important.</u>

So, in the situation above, the independent variable is the "types of reading instruction for a school year" while the dependent variable is the "reading comprehension" of the students.

<em>This means that the reading comprehension of the students will largely depend on the types of reading material.</em>

Thus, this explains the answer.

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Not enough info. We dont have the prices from the stores
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Monica rode her bike 3 1/4 miles on monday.she rode 2 2/4 miles on tuesday how much farther did monica ride on minday than tuesd
ivanzaharov [21]

Answer:

3/4 miles

Step-by-step explanation:

3 1/4 as a mixed fraction => 13/4

2 2/4 as a mixed fraction => 10/4

13/4 - 10/4 = 3/4

<u>She rode 3/4 miles more on Monday than Tuesday.</u>

3 0
2 years ago
Himpunan penyelesaian pertidaksamaan nilai mutlak |2x-4| &gt; |3x+2|
Stells [14]

Answer:

The solution in interval notation is:

(-6,\frac{2}{5}).

The solution in inequality notation is:

-6.

Step-by-step explanation:

I think you are asking how to solve this for x.

Keep in mind |x|=\sqrt{x^2}.

|2x-4|>|3x+2|

\sqrt{(2x-4)^2}>\sqrt{(3x+2)^2}

If \sqrt{u}>\sqrt{v} then u>v.

(2x-4)^2>(3x+2)^2

Subtract (2x-4)^2 on both sides:

0>(3x+2)^2-(2x-4)^2

Factor the difference of squares a^2-b^2=(a-b)(a+b):

0>((3x+2)-(2x-4))((3x+2)+(2x-4))

Simplify inside the factors:

0>(x+6)(5x-2)

(x+6)(5x-2)

The left hand side is a parabola that faces up.  I know this because the degree is 2.  

The zeros of the the parabola are at x=-6 and x=2/5.

We can solve x+6=0 and 5x-2=0 to reach that conclusion.

x+6=0

Subtract 6 on both sides:

x=-6

5x-2=0

Add 2 on both sides:

5x=2

Divide both sides by 5:

x=2/5

Since the parabola faces us and (x+6)(5x-2) then we are looking at the interval from x=-6 to x=2/5 as our solution.  That part is where the parabola is below the x-axis.  We are looking for where it is below since it says the where is the parabola<0.

The solution in interval notation is:

(-6,\frac{2}{5}).

The solution in inequality notation is:

-6.

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4 years ago
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8 0
4 years ago
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Harman [31]

Answer:

288 m

Step-by-step explanation:

All you do is length times width times height.

Do 6 times 16 times 3 to get your answer of 288 m

3 0
4 years ago
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