A United States senator from Maine wants to find out the opinion of Maine voters on issues concerning education. The office of the senator sends out a survey to state residents who have contacted the senator in the past year. Is this sampling method random? Explain

Answers

Answer 1

It may seem random, but it's heavily biased toward those who participate in politics. It leaves out people who have not contacted the senator. A better method would be to look at voter registration data, and send out surveys to random people on the list.


Related Questions

Question 3 (5 points)
(-1) + 5 -(-6) - 5 =
A) -3
B) 0
C) 5
D) -2.

Answers

Answer:

5

Step-by-step explanation:

-1+5+6-5

-1-5+5+6

-6+11

5

Point A is at (-6,8) and Point B is at (0,0.5) pint M is at the midpoint of point A and B

Answers

Answer:

Midpoint = (-3, 4.25)

Step-by-step explanation:

[tex]\mathrm{Midpoint\:of\:}\left(x_1,\:y_1\right),\:\left(x_2,\:y_2\right):\quad \left(\frac{x_2+x_1}{2},\:\:\frac{y_2+y_1}{2}\right)\\\\\left(x_1,\:y_1\right)=\left(-6,\:8\right),\:\left(x_2,\:y_2\right)=\left(0,\:0.5\right)\\\\=\left(\frac{0-6}{2},\:\frac{0.5+8}{2}\right)\\\\= (\frac{-6}{2} , \frac{8.5}{2} )\\\\Simplify\\\\=\left(-3,\:4.25\right)[/tex]

Si la medida de un ángulo exterior es el cúadruple de la medida de un ángulo interior de un polígono regular, encuentra la suma de dichas medidas.

Answers

If the measure of an exterior angle is four times the measure of an interior angle of a regular polygon, find the sum of these measures.

Answer:

dos  palabras viva el tequila

Step-by-step explanation:

atu vieja se lo voy a meter xd xd xd xd xd xd xd xd xd xd xd xd

p = q/4 -r solve for q

Answers

Answer:

4(p+r) = q

Step-by-step explanation:

p = q/4 -r

Add r to each side

p+r = q/4 -r+r

p+r = q/4

Multiply each side by 4

4(p+r) = q/4*4

4(p+r) = q

Match each pair of points with the approximate distance between them. Round your answer to the nearest tenth. Answers: 7.07, 5.1, 2, 2.83, 5.39, 13.15, 12.5 What to match them to: (3,-1) and (5,4), (2,3) and (4,5), (-5,7) and (8,5), (-2,4) and (3,-1)

Answers

(3, -1) -> (5, 4) = 5.38516 or 5.39 units

(2, 3) -> (4, 5) = 2.82843 or 2.83 units

(-5, 7) -> (8, 5) = 13.1529 or 13.15 units

(-2, 4) -> (3, -1) = 7.07107 or 7.07 units

The correct matching of the pair of points and the distance between them would be:

(3, -1) → (5, 4) = 5.39 units(2, 3) → (4, 5) =  2.83 units(-5, 7)  → (8, 5) = 13.15 units(-2, 4) → (3, -1) =  7.07 units

How to find the distance ?

The distance between two points in a 2-dimensional Cartesian plane is given by the Euclidean distance formula, which is a direct application of Pythagoras' theorem.

The distance between the points are therefore:

(3,-1) and (5,4):

Distance = √[(5 - 3)² + (4 - (-1))²] = √[(2)² + (5)²]

= √[4 + 25] = √[29]

= 5.39

(2,3) and (4,5):

Distance = √[(4 - 2)² + (5 - 3)²] = √[(2)² + (2)²]

= √[4 + 4] = √[8]

= 2.83

(-5,7) and (8,5):

Distance = √[(8 - (-5))² + (5 - 7)²] = √[(13)² + (-2)²]

= √[169 + 4] = √[173]

= 13.15

(-2,4) and (3,-1):

Distance = √[(3 - (-2))² + ((-1) - 4)²] = √[(5)² + (-5)²]

= √[25 + 25]

= √[50]

= 7.07

Find out more on distance at https://brainly.com/question/7243416

#SPJ6

The mapping diagram shows a functional relationship Complete the statements f(4) is Domain Range f(x) = 4 when x is. ​

Answers

Answer:

f(4) is 1/2

f(x)= 4 when x is 8

The complete statements would be as:

function f(4) is 1/2 and function f(x) = 4 when domain x is 8.

What are the domain and range of the function?

The domain of the function includes all possible x values of a function, and the range includes all possible y values of the function.

We have been given that the mapping diagram shows a functional relationship.

To determine the value of f(4)

As per the given functional relationship,

If the value of the domain is 4 then the value of the respective range would be 1/2.

Therefore, the function f(4) would be 1/2.

To determine the value of x,  when f(x) = 4

As per the given functional relationship,

If the value of the range is 4 then the value of the respective domain would be 8.

Therefore, x would be 8 if function f(x) = 4 .

Hence, the complete statements would be as:

f(4) is 1/2 and f(x) = 4 when x is 8.

Learn more about the domain and the range here:

brainly.com/question/21027387

#SPJ2

At what speed does the pitcher's arm rotation in degrees-s?

Answers

Answer:

7000 degrees per sec

Step-by-step explanation:

If the arm goes 7 degrees per ms to get how many degrees it goes per sec, just multiply by 1000.

Please answer these questions and the photo is above and please show the simple work

Answers

I'm not going to answer the questions for you. Instead I will give you stuff taht will help you solve the problems.

A negative divided/multiplied by another negative will be positive

A negative divided/multiplied by a positive will be negative

Good luck with your math hw! If you need more help, just comment!

Four more than the product of 19 and a number

Answers

4+(19x)

four plus 19 and a number

Answer:

19+4x

Step-by-step explanation:

We can write an expression:

19x+4x

"Four more": +4x

product of 19 and a number: 19x

what is 1/8(3d-12)=1/4(d+5)

Answers

Answer:

d=22

Step-by-step explanation:

1/8(3d-12)=1/4(d+5)

d= 22

2d - 15 =3 pls answer ASAP and with corrections

Answers

Answer: d=9

Step-by-step explanation:

2d -15 = 3    Add 15 to both sides

     + 15 +15

2d = 18    Divide both sides by 2

d = 9

Answer:

d=9

Step-by-step explanation:

collecting like terms

2d=3+15

2d=18

d= 9

Hoses A and B spout water at different constant rates, and hose A can fill a certain pool in 6 hours. Hose A filled the pool alone for the first 2 hours and the two hoses, working together, then finished filling the pool in another 3 hours. How many hours would it have taken hose B, working alone, to fill the entire pool

Answers

Answer:

18 hours

Step-by-step explanation:

Let the volume of the pool be x. Since pipe A filled the  pool in 6 hours, the rate of pipe A = x / 6.

Let the rate of pipe b be y, Hose A filled the pool alone for the first 2 hours, this means that the volume filled in the 2 hours is x/6(2 hours) and the two hoses, working together, then finished filling the pool in another 3 hours for the 3 hours the volume filled is x/6(3) + y(3).  hence the total time is:

x/6(2) + x/6(3) + y(3) = x

x/3 + x/2 + 3y = x

Multiply through by 6:

2x + 3x + 18y = 6x

5x + 18y = 6x

18y = x

y = x/18

The rate of pipe B is x/18, this means it would take pipe B 18 hours to full the pool alone

The coefficient of the term y is 0.

Answers

Answer:

no it is 1

Step by step instructions:

since there is no number for y it will be one

*em janeiro foram produzidos 818,4 litros de leite * em fevereiro 771,1 litros de leite *em março 815,2 litros de leite *em abril 784,5 litros de leite *em maio 803,4 litros de leite * em junho 742,9 litros de leite Agora responda: a)Quantos litros de leite foram produzidos EM MÉDIA, por mês? b)Quantos litros de leite, em média, foram produzidos diariamente no mês de janeiro?

Answers

Answer:

ifk

Step-by-step explanation:

tdf

Explain or give your reasoning as to why x^0=1.

Answers

Answer:

Any number raised to the zeroth power is equal to 1.

Step-by-step explanation:

x^0=1 is a number raised to the zeroth power so it is automatically equal to 1.

-7 + 9(2d - 3w) use w = 5 and d = 2

Answers

Answer:

-106

Step-by-step explanation:

[tex] - 7 + 9(2d - 3w) \\ w = 5 \\ d = 2[/tex]

Substitute the given values for w and d into the equation.

[tex] - 7 + 9(2(2) - 3(5)) \\ [/tex]

Follow the PEDMAS order of operation

[tex] - 7 + 9(4 - 15) \\ - 7 + 9( - 11) \\ = - 7 + ( - 99) \\ = - 7 - 99 = - 106[/tex]


[tex]( \frac{1}{2} {a}^{2} + \frac{1}{2} ab - {b}^{2} )[/tex]

Answers

Answer:

[tex]\frac{1}{2}[/tex] (a + 2b)(a - b)

Step-by-step explanation:

Assuming you require the expression to be factored

Given

[tex]\frac{1}{2}[/tex] a² + [tex]\frac{1}{2}[/tex] ab - b² ← factor out [tex]\frac{1}{2}[/tex] from each term

= [tex]\frac{1}{2}[/tex] (a² + ab - 2b²) ← factor the quadratic

Consider the factors of the coefficient of the b² term(- 2) which sum to give the coefficient of the ab- term (+ 1)

The factors are + 2 and - 1, since

2 × - 1 = - 2 and 2 - 1 = + 1, thus

a² + ab - 2b² = (a + 2b)(a - b) and

[tex]\frac{1}{2}[/tex] a² + [tex]\frac{1}{2}[/tex] ab - b² = [tex]\frac{1}{2}[/tex](a + 2b)(a - b)

Can anyone find the slope of this line (lots of points reward)

Answers

Answer:

(-5,1)

Step-by-step explanation:

i dont really know but might be right

Answer:

   -1/2

Step-by-step explanation:

Find two points on the line

(0,-5) and (2,-6)

Using the slope formula

m = (y2-y1)/(x2-x1)

   = (-6 - -5)/( 2-0)

   ( -6+5)/( 2)

     -1/2

Probe that:
[tex] \sec \alpha \sqrt{1 - \sin( {}^{2} ) } \alpha = 1[/tex]

Answers

Step-by-step explanation:

[tex] \sec \alpha \sqrt{1 - \sin ^{2} \alpha } = 1[/tex]

Prove the LHS

Using trigonometric identities

That's

[tex] \cos ^{2} \alpha = 1 - \sin^{2} \alpha [/tex]

Rewrite the expression

We have

[tex] \sec \alpha \sqrt{ \cos^{2} \alpha } [/tex]

[tex] \sqrt{ { \cos }^{2} \alpha } = \cos \alpha[/tex]

So we have

[tex] \sec \alpha \times \cos \alpha [/tex]

Using trigonometric identities

[tex] \sec \alpha = \frac{1}{ \cos \alpha } [/tex]

Rewrite the expression

That's

[tex] \frac{1}{\cos \alpha } \times \cos \alpha [/tex]

Reduce the expression with cos a

We have the final answer as

1

As proven

Hope this helps you

A two digit number becomes 5/6 of the reversed number when the digits are interchanged the difference between the digits is 1 find the number.
Friends plz helpe plz plz plz
I want answer with full explanation
I will mark him as brainliest​

Answers

Answer:

Original number = 54

Reversed number = 45

Step-by-step explanation:

Let the tens place digit be x and unit's place digit be y.

Therefore, required no. = 10x + y

Number obtained after interchanging the digits = 10y + x

According to the given condition:

[tex]10y+ x = \frac{5}{6} (10x + y) \\ 6(10y + x) = 5(10x + y) \\ 60y + 6x = 50x + 5y \\ 60y + 6x - 50x - 5y = 0 \\ 55y - 44x = 0 \\ 11(5y - 4x) = 0 \\ 5y - 4x = 0.....(1) \\ according \: to \: the \: second \: condition \\ x - y = 1 \\ x = y + 1....(2) \\ from \: equations \: (1) \: and \: (2) \\ 5y - 4(y + 1) = 0 \\ 5y - 4y - 4= 0\\ y - 4 = 0 \\ y = 4 \\ substituting \: y = 4 \: in \: equation \: (2) \\ x = 4 + 1 \\ x = 5 \\ \\ 10x + y = 10 \times 5 + 4 = 50 + 4 = 54 \\ 10y + x = 10 \times 4 + 5 = 40 + 5 = 45 \\ [/tex]


Which of these tables represents a linear function?







Plz Hurry

Answers

I think it a because I know

9 is 15% of what amount?

Answers

Answer:

0.9 is 15% of 6

work:

0.15 x 6 = 0.9

Hope this helps!

what is the answer for this question and how do i solve it?

Answers

Answer:

[tex]\frac{7}{15}[/tex]

Step-by-step explanation:

Given

[tex]\frac{16-4(5)}{2(6)+8}[/tex] + [tex]\frac{2}{3}[/tex]

= [tex]\frac{16-20}{12+8}[/tex] + [tex]\frac{2}{3}[/tex]

= [tex]\frac{-4}{20}[/tex] + [tex]\frac{2}{3}[/tex]

= - [tex]\frac{1}{5}[/tex] + [tex]\frac{2}{3}[/tex]

We require the fractions to have a common denominator of 15

Multiply the numerator/ denominator of - [tex]\frac{1}{5}[/tex] by 3 and

Multiply the numerator/ denominator of [tex]\frac{2}{3}[/tex] by 5

= - [tex]\frac{3}{15}[/tex] + [tex]\frac{10}{15}[/tex]

= [tex]\frac{7}{15}[/tex]

Fives times the difference of
a number and 3 is 25

Answers

Answer:

24

Step-by-step explanation:

multiples for 3=3,6,9,12,15,18,21,24

Multiples for 8=8,16,24

The first one that matches for both is 24

Answer: 8

Step-by-step explanation:

if n represents the number:

5(n - 3) = 25

(distribute)

5n - 15 = 25

(add 15 to both sides)

5n = 40

(divide both sides by 5 to isolate "n")

n = 8

Explain how to use friendly percents to find 35% of 80

Answers

Answer:

You can use friendly percents to find 35% of 80 by writing 35% as 25% + 10%. 25% of 80 is 80 divided by 4, which is 20. 10% of 80 is 80 divided by 10, which is 8. 20 + 8 = 28. So 35% of 80 is 28.

Step-by-step explanation:

I just did the test!!! And plus its a sample answer !!!

solve the following equation show your work 3{-x + (2x + 1)} = x - 1

Answers

Answer:

x = -2

Step-by-step explanation:

For this problem, we must simply solve for x.  To do this, we will need equation operations, and the use of the distributive property.

Let's work this line by line until we have the value for x:

3{-x + (2x + 1)} = x - 1

3*-x + 3*(2x + 1) = x - 1

-3x + 6x + 3 = x - 1

3x + 3 = x - 1

2x = -4

x = -2

Now we can check our answer for x by plugging back into the original equation and see if the left hand side is equal to the right hand side:

3{-x + (2x + 1)} = x - 1

3{-(-2) + (2(-2) + 1)} ?= (-2) - 1

3{2 + (-4 + 1)} ?= -3

3{2 + (-3)} ?= -3

3{-1} ?= -3

-3 == -3

Thus, we have found the solution for x to be equivalent to negative 2.

Cheers.

Answer:

x = - 2

Step-by-step explanation:

3{-x + (2x + 1)} = x - 1

First solve the terms in the bracket first

That's

3 (- x + 2x + 1 ) = x - 1

3( x + 1) = x - 1

Expand the terms in the bracket

We have

3x + 3 = x - 1

Simplify

3x - x = - 1 - 3

2x = - 4

Divide both sides by 2

We have the final answer as

x = - 2

Hope this helps you

5. Find the point X on CF that is of the distance from C to F. C is -4 F is 5 -7-6-5-4-3-2-1 0 1 2 3 4 5 6 7 A) -2.2 B) 0.5 C) -1.8 D) -3​

Answers

Correct Question: Find the point X on CF that is ⅕ of the distance from C to F.

*See attachment below for the numberline.

Answer:

A.) -2.2

Step-by-step explanation:

Given that C on the numberline = -4,

F on the numberline = 5

The distance from point C (-4) to point F (5) = |-4 - 5| = |-9| = 9

We are told that point X on CF, = ⅕ of the distance from point C to F. That is, X on the numberline is ⅕ of 9 = ⅕*9

⅕*9 = 9/5 = 1.8

This means, the coordinate of point X, from point C = coordinate of C + 1.8 = -4 + 1.8 = -2.2.

Therefore, the coordinate of X that is ⅕ of the distance from point C to F is -2.2.

I plugged in 4 for the derivative function but I’m getting the wrong answer?

Answers

Answer:

8.6615988

Step-by-step explanation:

f(x) = 3 sin (x) / ( 1 + cos x)

To find the derivative   bottom * d/ dx top  - top d/dx bottom  all over the bottom squared

d/dx = 3 ( ( 1 + cos x)  cos x - sin x( - sin x))   / ( 1 + cos x) ^2

         = 3 ( cos x + cos ^2 x + sin ^2 x)   / ( 1 + cos x) ^2

         = 3 ( 1 + cos  x) /  ( 1 + cos x) ^2

         = 3 / ( 1 + cos x)

Let x = 4

3  /  ( 1 + cos 4)

Assuming x is in radians

3/.346356

8.6615988

cosA×cos2A+sinA×sin2A=cos (2A-A)​

Answers

Answer:

csc

A

, as desired!

Step-by-step explanation:

cos

2

A

sin

A

+

sin

2

A

cos

A

,

=

cos

2

A

cos

A

+

sin

2

A

sin

A

sin

A

cos

A

,

=

cos

(

2

A

A

)

sin

A

cos

A

,

=

cos

A

sin

A

cos

A

,

=

1

sin

A

,

=

csc

A

, as desired!

you have already read 117 pages of a book you are one third of the way through the book write and solve an equation to find the number of pages in the book

Answers

Answer:

1/3=117......117x3=351

Step-by-step explanation:

/ is my fraction sign btw

the answer is 351!!

Other Questions
On October 1, Callison accepts a 5-year interest bearing note receivable for $1,000. The note bears interest of 12%. Both principal and interest are received at maturity. The journal entry required on December 31, Year 1, to accrue interest will include:_______ solve for the inverse g(x) = 2x^2-6/9 Most of the Europeans who explored the Upper Mississippi River region were focused on finding what?A)the Northwest PassageB)gold, silver and other precious medalsEliminateC)Natural resources to take back to Europe.D)Large, Native people groups to develop a trade rel Please help on the last part did the first two Give the first two solutions of the n-Queens problem for n = 6 Write it in the form (1,2), (2,2), (3,2) 55 points! Need asap Souta wants to compare the mean of his test scores in French class to the mean absolute deviation. Language Test Scores French Scores 76 62 94 80 He uses the steps below to find both the mean and mean absolute deviation. French Scores Step 1 Add the scores. 76 + 62 + 94 + 80 = 312 Step 2 Divide the sum of the scores by 4. 312 divided by 4 = 78 Step 3 Add the differences between the mean and each score. (76 minus 78) + (62 minus 78) + (94 minus 78) + (80 minus 78) = 0 Step 4 Divide by 4. StartFraction 0 over 4 EndFraction = 0 In which step did Souta make the first error? Step 1 Step 2 Step 3 Step 4 What is the theme of the story Look at the picture so you know what the problem is. what the indian removal act led to calculate the potential of the electrochemical cell and determine if it is spontaneous as written at 81. A security analyst captures forensic evidence from a potentially compromised system for further investigation. The evidence is documented and securely stored to FIRST: Based on what you know about Carmen, what kinds of factors influencewhether she likes a class or not?' "federal system maintains close relationship between government and the people ".Justify the statement in a paragraph. Polygon A has one side that is 1.5 and two sides 2.5. How can I figure out how many times larger Polygon B is? Carry by Linda Hogan Instructions: Read carefully and answer all parts of each question. It is worth 24 points (2 points each for precision and grammar). 1. RL1,2 An inference is a logical conclusion based on clues in the text and on the reader's own experience. Reread lines 2-6 of the poem and infer what happened, citing evidence from the text to support your inference. 2. RL2 poets often use figurative language, or language that has meaning beyond the literal meaning of words, to convey underlying themes or messages. Identify the event described by the simile, a comparison using like or as, on line 12, and then explain the idea the simile suggests. 3. RL2 Personification, which gives human attributes or qualities to an object or idea, is another type of figurative language. Reread line 22 and explain why the line is an example of personification. From this personification, what can we infer about the subject? 4. RL1,5 Authors choose their words carefully to create a tone or mood. Authors can use images, descriptions, and rhythms to do this. In what two ways is water described? Cite examples of descriptive words or phrases for water and compare them. What effect does this have on the mood of the poem? 5. Discuss: What does the fate of the hawk reflect on nature, if at all? Cite specific evidence from the text to support your ideas. 6. Summarize: Review what is explicitly said on lines 1-14 and write a short summary (1-3 sentences) of what the speaker describes. How does the image created in these lines affect the mood or emotion of the poem? 7. Infer: Use clues from the text to infer what happened to the hawk. Why is this unexpected? 8. Analyze: Words and phrases that describe how things look, feel, sound, taste, or smell are called sensory details. Write down the sensory details on lines 15-23. How do these details help engage readers in the poem? 9. Interpret: Explain what lines 22-23 mean: "and water is never lonely, / contains so many". Support your interpretation with evidence from other lines. 10. Analyze: Review the supplication and promise of water at the end of the poem (lines 24-32). What does the water want? What does it offer? 11. Interpret: A symbol is something that represents or represents something beyond itself. Review the descriptions of the water in the poem. What does the water symbolize? 12. Cite the evidence: What theme about our connection to nature does this poem convey? Support your topic statement with evidence from the poem. Find the radius of a circle with the equation:x2 + y2 18x 14y + 124 = 0 Is this correct ? I think part of it is correct but Im not sure For what value of $a$ does the equation $3(2x-a) = 2(3x+12)$ have infinitely many solutions $x$? Change the following statements into a good hypothesis. Adding salt to the soil may affect the growth of grass.