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aniked [119]
3 years ago
15

Is a biased sample valid

Mathematics
1 answer:
murzikaleks [220]3 years ago
5 0
No a biased sample is not valid
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Which function is a horizontal compression of its parent function f(x)=x^7 by a factor of 4
evablogger [386]

Answer:

r(x)=(4x)^7


Step-by-step explanation:

  • For a horizontal compression, we multiply whole numbers greater than 1 in front of x of the given function.
  • For horizontal expansion, we multiply by the reciprocal of the number for horizontal compression, in front of x of the function.

For example,

If we wanted to <u>horizontally compress</u> y=x^2, we would multiply by 4 to get y=(4x)^2, and

if we wante to <u>horizontally expand</u> y=x^2, we would multiply by \frac{1}{4} to get y=(\frac{1}{4}x)^2


Since this question asks for horizontal compression, we multiply the x of the function by 4. So the function we need is f(x)=(4x)^7. The second choice is correct.

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4 years ago
Help will give brainly
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Answer:

Is it 72?

Step-by-step explanation:

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Plz fill in the blank.....The _________ is the greatest of common factors of the two or more numbers.
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10 is the greatest common factor if two or more numbers
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An electronic store advertised that all stereos were priced at a 1/5 discount. How much is the discount if the stereo originally
kodGreya [7K]
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Repost cause other question got reported- <br> 40 points plus if you explain Brainliest
Amiraneli [1.4K]

The value of point X is 9/20 if YZ = 2 1/4 , WZ = 5 1/10, and WX = 1 3/5 option (F) -9/20 is correct.

<h3>What is a linear equation?</h3>

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have:

A number line is shown in the picture.

YZ = 2 1/4   or

YZ = 9/4

WZ = 5 1/10

WZ = 51/10

WX = 1 3/5

WX = 8/5

Let x be the value of point X

WZ = WX + XY + YZ

51/10 = 8/5 + (4/5 - X) + 9/4

\rm -X+\dfrac{8}{5}+\dfrac{4}{5}+\dfrac{9}{4}=\dfrac{51}{10}

\rm -X+\dfrac{93}{20}=\dfrac{51}{10}

\rm -X=\dfrac{9}{20}

X = -9/20

Thus, the value of point X is 9/20 if YZ = 2 1/4 , WZ = 5 1/10, and WX = 1 3/5 option (F) -9/20 is correct.

Learn more about the linear equation here:

brainly.com/question/11897796

#SPJ2

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2 years ago
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