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VikaD [51]
2 years ago
7

40 Points! Brainliest for correct answer! A student in a local high school prepared a survey question asking each student what h

is or her favorite male and female actors are. Which of the following methods will provide a sample that will represent the population of students as a whole?
A. Posting the question on the Internet.

B. Instant messaging every 9th person on the phonebook

C. Mailing a questionnaire to every student’s home.

D. Drawing 50 names from a hat containing the names of every student in the school.
Mathematics
2 answers:
Dmitry [639]2 years ago
7 0

Answer:

D. Drawing 50 names from a hat containing the names of every student in the school.

Step-by-step explanation:

I did this one before

Blizzard [7]2 years ago
6 0

Answer:

D. Drawing 50 names from a hat containing the names of every student in the school.

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A hair salon charges a fixed rate of $25.00 for a haircut and then an additional 515 for any other services. Write a function to
V125BC [204]

Answer:

you have a fixed rate of $25, meaning you get a haircut, it's $25

ANY other service is an extra $15

So, let's make the equation...

y=15x+25

Now, to just get a haircut it's $25.

But, let's say you get a haircut+shampoo

It'd be..

y=15(1)+25

y=$40

Another one..

You get a haircut+shampoo+highlight

y=15(3)+25

y=$70


6 0
3 years ago
What is the value of discontinuity of x^2+8x+4/x^2-x-6? Choices:
Morgarella [4.7K]

Answer:

-2

Step-by-step explanation:

Hello,

First of all, let's check the denominator.

x^2-x-6 \ \ \text{ *** How to factorise it ...? ***}\\\\\text{*** The product of the roots is -6=-2*3 and their sum is 1 ***}\\\\x^2-x-6=x^2-3x+2x-6=x(x-3)+2(x-3)=(x+2)(x-3)

Now, let's see the numerator.

x^2+8x+4 \ \text{ *** -2 is not a zero as ***}\\\\(-2)^2+8*(-2)+4=4-16+8=-4\\\\\text{*** 3 is not a zero as ***}\\\\3^2+8*3+4=9+24+4=37\\

So we cannot factorise the numerator with (x+2) or (x-3)

Then, -2 and 3 are the the discontinuities of the expression.

There is only -2 in the list, this is the correct answer.

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

3 0
2 years ago
Simplify -√36 please
myrzilka [38]

Answer:

-6

Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
Find the equation of a line that passes through left parenthesis 1 comma 6 right parenthesis(1,6) and is parallel to the graph o
max2010maxim [7]

Answer:

The equation for the new line in slope-intercept form is:  

y=4x+2

Step-by-step explanation:

Since they give us an equation in slope-intercept form "y=4x+5", it is easy to extract the slope the new parallel line to this should have : "4" (same slope as the reference line)

We are also given a point the new line should go through : "(1, 6)"

So we can use the "point-slope" form of a line to find the equation of this new line:

y-y_0=m(x=x_0)\\y=m(x-x_0)+y_0

which for our case is:

y=m(x-x_0)+y_0\\y=4\,(x-1)+6\\y=4x-4+6\\y=4x+2

6 0
3 years ago
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