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harkovskaia [24]
1 year ago
10

Select the correct answer. Which is the simplified form of the expression ? A. B. C. D. here is a photo of it and 40 points and

who ever gives me answer marked brainlyest

Mathematics
2 answers:
PolarNik [594]1 year ago
5 0

Answer:

c

Step-by-step explanation:

allsm [11]1 year ago
4 0

Answer:

it  is c

Step-by-step explanation:

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In a function, y varies inversely with x. The constant of variation is 4. Which table could represent the function?
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The equation will be y=4/x. u can make the table of variables by inserting the values of x in the equation. for suppose here, if x=1 then y=4 , x=2 then y=2 and so on.
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A ladder 25 feet long is leaning against the wall of a building. Initially, the foot of the ladder is 7 feet from the wall. The
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Step-by-step explanation:

find the attached below

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A researcher wants to determine if preschool attendance is associated with high school graduation for low-income students. She r
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Answer:

(C) Whether or not a subject attends preschool

Step-by-step explanation:

In research studies, variables are used to explain differences in another variable. The explanatory variable (also known as independent or predictor variable) is used to explain differences in the response variable (dependent or outcome variable).

<em>It is important to know that the explanatory variable is the variable that is manipulated by the researcher. </em>

The facts that are not being manipulated are the income of the children studied, and what happens after attending or not preschool program. The variable the researcher is manipulating is the assignation to groups that will or will not attend preschool. Therefore the correct answer is:

(C) Whether or not a subject attends preschool

I hope you find this information useful and interesting! Good luck!

3 0
1 year ago
a construction worker needs to put a rectangular window in the side of a building. he knows from measuring that the top and bott
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The other diagonal would be 13 feet as well because it is a rectangle.
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2 years ago
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A sociologist wishes to see if it is true that for a certain group of professional women, the average age at which they have the
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Answer:

Z = 2.1\ is\ higher\ than\ 1.96, we\ reject\ H_o

Step-by-step explanation:

The explanation of given question is described below:

Here, the test of hypothesis states that

H_o : Mean = 28.6

H_a : Mean\ which\ is\ not\ equals\ 28.6

The test statistic is

Z = \frac{(\bar X - Mean)}{\frac{Population\ standard\ deviation}{vn} }

Z = \frac{(30.06 - 28.6)}{\frac{4.18}{6} }

= 2.1

According to the given data α = 0.05,

So, the major value is

IZ(0.025)I = 1.96

(refer to the standard normal table) .

Finally

Z = 2.1\ is\ higher\ than\ 1.96, we\ reject\ H_o

3 0
2 years ago
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