_____13. Public opinion polls are only estimates because (A) random digit dialing has replaced person-to-person interviewing. (B) all surveys have a sampling error. (D) samples of fewer than one million people are too small. (E) opinion polls have been deemed ineffective by political candidates.

Answers

Answer 1

Answer:

(B) all surveys have a sampling error.

Step-by-step explanation:


Related Questions

Point G is the centroid of triangle ABC. AG = (5x + 4) units and GF = (3x – 1) units.

Triangle A B C has centroid G. Lines are drawn from each point to the midpoint of the opposite side to form line segments A F, B D, and C E. The length of line segment A G is 5 x + 4 and the length of line segment G F is 3 x + 1.

What is A F?

11 units
15 units
43 units
51 units

Answers

Based on the given diagram, the length of FA is 51 units

Find the diagram attached. From the diagram;

AG = 2GF

Given that:

AG = 5x + 4

GF = 3x - 1

Substitute the given parameters into the formula;

5x + 4 = 2(3x - 1)

5x + 4 = 6x - 2

5x - 6x = -2 - 4

-x = -6

x = 6

Get the FA = 5x + 4 + 3x - 1

Substitute the value of x into the expression:

FA = 8x + 3

FA = 8(6) + 3

FA = 48 + 3

FA = 51 units

Hence the length of FA is 51 units

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Answer:

51 units

Step-by-step explanation: took the test on ed and got it right

If there are 5 females in a classroom, and 4 males, but 4 of the females are students, whos the other female? please only answer if you know ive been stuck on this for hours

Answers

Answer:

1 teacher female

Step-by-step explanation:

Answer:

Teacher?

Step-by-step explanation:

Well if the other female isn't a student then it must be the teacher.

in the quadratic equation, what is the value, a, in order to form a perfect square x^2-8x+a=0;

Answers

Answer:

16

Step-by-step explanation:

x² - 8x + 16 will become ( x - 4 ) ( x - 4 ) or ( x - 4 )²

8. There are 3 cows for every 4 chickens on a farm. If there are 154
animals, how many are cows?

Pls help me

Answers

Answer:

12 po

Step-by-step explanation:

I try my best I don't know if right

evaluate 5/11 -9/11 answer

Answers

Answer:

Exact Form:

−4/11

Decimal Form:

0.36

Step-by-step explanation:

Subtract 5/11 from 9/11 to get your answer.

Simplify the expression.

-kiniwih426

Find the unknown sizes of angles in the following figures (with step-by-step explanation please):​

Answers

Answer:

O= 87 degrees

Step-by-step explanation:

Because they are opposites

Answer:

x angle is 29

then 2x angle is 58 and y angle is complementary so then y also is 58

how many times dose the average person do math a day?

Answers

A little depends on the person

Alice purchased 4 1⁄2 kilograms of olive oil for $27. What is the price per kilogram?

Answers

Answer: 6 dollars per kilogram

=====================================================

Explanation:

The mixed number 4 & 1/2 converts to the decimal form 4.5

The unit price is 27/(4.5) = 6 dollars per kilogram

------

If you wanted, you can think of it like this ratio

4.5 kg : 27 dollars

Dividing both parts of that ratio by 4.5 will lead to

1 kg : 6 dollars

Enrollment at a golf academy has grown exponentially since the academy opened. Below is a graph depicting this growth. Determine the average rate of change from x = 0 to x = 4.

A) 0.067
B) 4
C) 15
D) 75

Answers

Answer: 15

Step-by-step explanation: I took the test.

Answer:

C.) 15

Step-by-step explanation:

Name two triangles that are congruent by the ASA Postulate.

ATC=DOG

ATC=NFI

PQR=INF

PQR=IFN

Answers

Answer:

ATC is congruent to DOG by ASA axiom for congruency

Answer: ATC = DOG

Step-by-step explanation:

The area of a square is 1 square foot . What is the length of each side of the square?
A) 1ft.
B) 2ft.
C)3ft.
D)4ft.

Answers

Answer:

A

Step-by-step explanation:

1ft times 1ft is only 1 ft

Answer:

1ft

Step-by-step explanation:

Could anyone help me with this? The question is provided on the attachment

Answers

Answer:

100°C

Step-by-step explanation:

Substitute in the values:

C = 5/9 × (212 - 32)

Simplify:

C = 5/9 × 180

1/9 of 180 = 20 (180 ÷ 9)

∴ 5/9 of 180 = 100°C (20 × 5)

Answer:

c=100C°

we learn that in intermational school

What is the quotient of 6.591 times 10^7 6 and 8.45 times 10^2 expressed in scientific notation?

Answers

Answer:

7.8 x 10^4 or 7.8e4 hope this helps!

The quotient when 6.591 x 10⁷⁶ is divided by 8.45 x 10² is 6.591 x 10⁷⁴.

What is quotient?

In arithmetic, a quotient is a quantity produced by the division of two numbers.

Given is to find the quotient of 6.591 x 10⁷⁶ and 8.45 x 10².

We have to find the quotient when 6.591 x 10⁷⁶ is divided by 8.45 x 10².

6.591 x 10⁷⁶ ÷ 8.45 x 10²

(6.591 x 10⁷⁶/8.45 x 10²)

(6.591 x 10⁷⁶ ⁻ ²)

6.591 x 10⁷⁴

Therefore, the quotient when 6.591 x 10⁷⁶ is divided by 8.45 x 10² is 6.591 x 10⁷⁴.

To solve more questions on functions, expressions and polynomials, visit the link below -

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#SPJ2

Complete the square:
x2 - 6x + 9=-13+ blank

Answers

Answer:

to complete the square, you add (b/2)^2  on both side. in this case, b is -6, half of -6 is -3, -3 squared is 9, so:

x^2-6x+9=-13+9

(x-3)^2=-4

This quadratic equation have unreal solutions

Step-by-step explanation:

Answer:

Step-by-step explanation:

To complete the square, divide the coefficient of x by 2.

6 /2 = 3

Take square of 3 and add to both sides

3*3 = 9

x² - 6x + 9 = -13 + 9

x² - 6x + 9 = -4

(x - 3)² = -4

Below is a recipe for chocolate chip cookies. The recipe makes 27 cookies. How many teaspoons of vanilla extract do you need to make 24 cookies? Round to the nearest hundredth if needed.

Answers

Answer: 1.78 teaspoons

Step-by-step explanation:

The recipe says: 27 cookies/2 teaspoons Vanilla extract. Let's abbreviation this conversion factor as (27/2)C/V, where C is cookie and V is 1 teaspoon vanilla extract. We have both 13.5C/V and 1V/13.5C as conversion factors. 13.5 cookies is equivalent to 1 teaspoon vanilla, or 1 teaspoon vanilla is equivalent to 13.5 cookies. We can multiply ofr divide either of these factors, since they are both equivalent to 1, and you can mukltiply or divide anything by 1 without changing it's accuracy. The atual numbers will change, but the units will also change, making it a valid result.

We want 24 cookies. Use one of the conversion factors to find the teaspoons vanilla extract required:

1) We can divide by (27C/2V)

24C/((27C/2V) = 1.78 teaspoons

or

2) we can multiply by (1V/13.5C)

24C*(1V/13.5C) = 1.78 teaspoons

When President Obama stated, "Transparency and the rule of law will be the touchstones of this presidency," he meant that

Answers

Answer:

that what

Step-by-step explanation:

HELP HELP


Write the equation of the parabola in vertex form.

vertex (0,3), point (1, - 4)

f(x) =

(Simplify your answer.)

Answers

Answer:

Equation of the parabola: y = 3 - 7x^2

Step-by-step explanation:

The equation of the parabola with vertex (h,k) is y = a(x - h)^2 + k

Thus, the equation of this parabola is  y = ax^2+3

To find a, use the fact that the parabola passes through the point (1,−4):

-4 = a(1)^2 +3

Solving this equation, we get that a = −7.

Thus, the equation of the parabola is y = 3 − 7x^2.

Explain how you can mentally determine that 35000 divided by 70 is 500

Answers

Firstly, 35 = 7 x 5

Thus, ignoring the zeroes, we can see that 35000 / 7 would be 5000. Then, divide it by 10 to get 500.

pls mark me as brainliest!

Hello, I need some help?
What is the maximum height the cannonball will travel (include units in your answer)?

Answers

35 feet

you can find the answer by looking at the top-most point on the line

this top-most point reaches between 30 and 40 feet, exactly in the middle

therefore it is 35 feet

The circle graph represents the after-tax budget for the Williams family. If the total monthly budget is $3050, which is the best estimate for the food budget?

Answers

The best estimate for the food budget will be the percentage of the food budget multiplied by $3050.

This is an incomplete question, therefore, an overview of the question will be given. Since you didn't provide the percentage of the food budget, let's assume that the percentage is given as 20%. Therefore, the food budget will be;

= 20% × $3050

= 0.2 × $3050

= $610

The food budget will be $610.

Read related link on:

https://brainly.com/question/25311515

I will give you brainliest if you solve the math question

Answers

Answer:

x=60

y=30

Step-by-step explanation:

Answer:



y=30

x=60

Step-by-step explanation:

Chef Tashariah is cooking for a Sunday brunch she knows that 22 pancakes can feed 8 people

Answers

Answer: 22 people

Step-by-step explanation:

we can solve the problem by setting missing

Can you Helppp please

Answers

To have infinite solutions both equations need to be equal

Since they subtract 5 from the right side, subtract 5 from the left side.

X is multiplied by 1/2 on the left , so multiply x by 1/2 on the right side.

1/2x -5 = 1/2x-5

The product of Victor's savings and 4 is 48.

Answers

Product=result of multiplication. We know that a number, we will cal “x,” times 4 = 48. Therefore:
• 1) 4x=48
• 2) 4x/4=48/4 [Division Property of Equality]
• 3) X=12

Now, we can substitute in 12 for x to check that the product is 48:
• 4) 4(12)=48
•5) 48=48 [Reflexive Property of Equality]

Find the equation of the linear function represented by the table below in slope-
intercept form.

Answers

Answer:

Hey there, first let's find the slope.

M=y2-y1/x2-x1.

M=7-3/2-1 which is 4/1.

So your slope is 4

So now we have y=4x+b.

Now we need our Y-intercept (B). which is -1

So your answer is Y=4x-1

what is the answer to this
-11 - (-3)

Answers

Answer:

-8

Step-by-step explanation:

-11 - (-3) =

(-11) + 3

-8

Answer:

=−8

Step-by-step explanation:

=−11−(−3)

=−11+3

=−8

Write the equation of the line shown in the graph to the right
Hint: Think about slope and y-intercept.

Answers

Answer:

y=2x-6

Step-by-step explanation:

The intercept is -6 so -6 and you take two points on the line e. g. (3,0) and (2,-2) You would do -2-0 to get -2 and 2-3 to get -1. -2 divided by -1 equals 2. The slope is two.

can someone helo me with this 4^x x 8^x ^+ ^1 = 2⁴​

Answers

Answer:

c

Step-by-step explanation:

tupac guarda monedas de coleccion en su alcancia tiene dos monedas de 10 pesos tres monedas de 5 pesos siete monedas de 0.50 pesos cinco monedas de 0.25 pesos y tres monedas de 0.10 pesos ¿cuanto denero tiene en total Me ayudan plis​

Answers

Answer:

40.05

Step-by-step explanation:

multiplicas la cantidad de monedas por su valor:

2 monedas de 10 = 20

3 de 5 = 15

7 de 0.50 = 3.50

5 de 0.25 = 1.25

3 de 0.10 = 0.30

sumas lo multipicado:

40.05

Find the distance between P(2, 5 ) and Q( 7 , 3)

Answers

Answer:

PQ = √(7-2)²+(3-5)²

= √ 5²+(-2)²

= √ 25+4

=√29 units

Hope it helps !

Don't forget to mark me as brainliests.

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