The student council at Eleanor Roosevelt High School is taking a survey of student opinions on this year's homecoming theme. To decide who to survey, the council creates a master alphabetized list of names from every student in the school, then selects every 20th student from the list. Will the results of this survey be valid? Why or why not?

yes, because a random sample is taken from all of the student body

yes, because the survey will include all of the seniors

no, because the survey will include freshman

no, because the survey will not include members of the faculty

Answer:

Zero-based numbering is a way of numbering in which the initial element of a sequence is assigned the index 0, rather than the index 1 as is typical in everyday non-mathematical or non-programming circumstances.

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Answer:

A= -40

B= 16

C= 40

D= 50

Step-by-step explanation:

The values of the matrix is a = -40, b = 16, c = 40, d = 50.

A matrix is an arrangement of numbers, expressions or symbols arranged in rows and columns as a rectangular array. These rows and columns define the size or dimension of a matrix.

For the given situation,

The matrix is

[tex]\left[\begin{array}{ccc}4&-1&-4\\0&5&-2\\0&8&10\end{array}\right] = \left[\begin{array}{c}-7&-11&22\end{array}\right][/tex]

The operation on matrix is

[tex]-8R2- > R2[/tex] and

[tex]5R3- > R3[/tex]

⇒ [tex]\left[\begin{array}{ccc}4&-1&-4\\0&-40&16\\0&40&50\end{array}\right] = \left[\begin{array}{c}-7&88&110\end{array}\right][/tex]

On comparing this equation with the given equation,

[tex]a=-40, b=16, c=40, d=50[/tex]

Hence we can conclude that the values of the matrix is a = -40, b = 16,     c = 40, d = 50.

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Answer:

Step-by-step explanation:

The closest to sea level is - 11. The minus sign indicates that you are below 0 or the level of the sea at that location. So what is true and what isn't?

Grasshopper meadow is not closest to sea level. At 15 feet it is 4 feet more above the closest one at - 11. False

Echo point is the highest above sea level. It is 45 feet above sea level. This statement is also False.

Answer:

84

Step-by-step explanation:

the perimeter is basically all the way round a shape

P=2l+2d2﹣l2 for the diagnol

Answer:

12%

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 12%/100 = 0.12 per year,

then, solving our equation

I = 3900 × 0.12 × 0.25 = 117

I = $ 117.00

The simple interest accumulated

on a principal of $ 3,900.00

at a rate of 12% per year

for 0.25 years is $ 117.00.

Answer:

695 km and hour

Step-by-step explanation:

Answer:

5/9

Step-by-step explanation:

Answer:

i think 5/9

Step-by-step explanation:

Answer:

6.4

Step-by-step explanation:

6.4 is equivalent to 6.40 so it would be closest to 0, leaving it as 6.4.

6.4 is rounded to the nearest 10th as 6.4

The digit in the smallest location is unaffected if it is less than 5 in number. Rounding down is the process of reducing a number to zero after a certain number of digits. The digit in the smallest location is added with +1 if it is bigger than or equal to 5.

After decimal the number is less than 5, so it will remain unchanged and if the number is greater than or equal to 5, then an increment of 1 is introduced.

So, 6.4 rounded to the nearest 10th as 6.4

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Answer:

6cm^3

Step-by-step explanation:

V = l*w*h

........... ....

Answer:

6

Step-by-step explanation:

3 times 2 =6

6 times 1 =6cm3 (cubed)

Answer:

x = - 3

Step-by-step explanation:

Given

2(3x - 1) - x = 2x - 11 ← distribute parenthesis on the left side and simplify

6x - 2 - x = 2x - 11

5x - 2 = 2x - 11 ( subtract 2x from both sides )

3x - 2 = - 11 ( add 2 to both sides )

3x = - 9 ( divide both sides by 3 )

x = - 3

Answer:

132

Step-by-step explanation:

Answer:

132

Step-by-step explanation:

Answer:

-6, -2, 1, 8

Step-by-step explanation:

Answer:

-6, -2, 1, 8

Step-by-step explanation:

Negatives have less value than positives, so that's why the negatives go first in the answer.

Answer:

Step-by-step explanation:

sinS = 9/41 ≅ 0.22°

Answer:

The true statement is C because between -4 and 14 is 10

Step-by-step explanation:

Plz mark brainliest

Answer:

b

Step-by-step explanation:

(-5)-12=17

6-(-3)=9

(-4)-14=18

hope this helps have a great day :)

Answer:

mf you are asking this in high school.

Step-by-step explanation:

Answer:

4.5

Step-by-step explanation: there

Answer:

s/22? i think thats one way

Step-by-step explanation:

Answer:

$40.25

Step-by-step explanation:

35 increase 15% =

35 × (1 + 15%) = 35 × (1 + 0.15) = 40.25

Answer:

Sarah gets 32 pens and Amina gets 40 pens

Step-by-step explanation:

72 pens

4/9×72 = 4×8 =32

Sarah gets 32 pens

5/9×72=5×8=49

Amina gets 40 pens

hope it helped

Answer:

x=16

Step-by-step explanation:

2x + 33 = 5x - 15 (Alternate Interior Angles)

33 + 15 = 5x - 2x

48 = 3x

x= 48/3 = 16

The function which represent the absolute value is G ( x ) = a|x| , where the value of a < 1

The transformation of a function may involve any change.

Usually, these can be shifted horizontally (by transforming inputs) or vertically (by transforming output), stretched (multiplying outputs or inputs), etc.

If the original function is y = f(x), assuming the horizontal axis is the input axis and the vertical is for outputs, then:

Horizontal shift (also called phase shift):

Left shift by c units: y=f(x+c) (same output, but c units earlier)

Right shift by c units: y=f(x-c)(same output, but c units late)

Vertical shift:

Up by d units: y = f(x) + d

Down by d units: y = f(x) - d

Stretching:

Vertical stretch by a factor k: y = k × f(x)

Horizontal stretch by a factor k: y = f(x/k)

Given data ,

Let the function be represented as f ( x )

Now , the value of f ( x ) is

f ( x ) = | x |

This function is symmetric with respect to the y-axis and has a V-shape, with the vertex at (0,0).

To vertically compress the function, we can multiply the function by a constant value less than 1.

And , the function that shows the absolute value parent function f(x) vertically compressed is:

G ( x ) = a| x |, where 0 < a < 1

The value of "a" determines the degree of compression of the function. The smaller the value of "a", the greater the degree of compression.

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Answer:

a negative rational number

Step-by-step explanation:

I'm pretty positive this is the answer, but its worded strange in my opinion

Answer:

Y=-x+3

Step-by-step explanation:

First move the the x term to one side. Isolate the y term. Then because the coefficient is 4 in the y term divide the whole equation by 4. Then you get your answer.

Answer:

? ≈ 25.8°

Step-by-step explanation:

Using the tangent ratio in the right triangle

tan? = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{14}{29}[/tex] , then

? = [tex]tan^{-1}[/tex] ( [tex]\frac{14}{29}[/tex] ) ≈ 25.8° ( to 1 dec. place )

Answer:

Yes,you have to add both of the bases in a triangle  prism to find the volume.

Step-by-step explanation:

took the test.

Answer:

Step-by-step explanation:

Volume of the prism:

You use the area of the base once, multiply it by the height to find the volume

The answer is no.

Answer:

500 mg

Step-by-step explanation:

K H D B D C M (Kilo, Hecto, Deka, Base [meters, grams, etc.] Deci, Centi, Milli)

since you're using grams substitute G for B

K H D G D C M

you have 0.5 grams of salt, which will be G for grams. you want to convert it to milligrams, which is M. you will move the decimal over 3 spots in order to get from G to M, therefore you go from 0.5 grams to 500 milligrams. I hope this is helpful!

Answer:

Yes

Step-by-step explanation:

There are not multiple of the same Y-values so it is a function.