Can you please help me and i will give you a Brainiest

Option E is correct. People who are not registered to vote may bias the sample results is not a legitimate concern about the procedure being used.

People who are not registered to vote may bias the sample results is not a legitimate concern about the procedure being used because the polling firm is specifically interested in surveying a representative sample of registered voters in the United States.

The procedure targets registered voters by calling random phone numbers within the United States.

Since the focus is on registered voters, people who are not registered to vote are not part of the target population for this survey.

Therefore, their presence or absence in the sample does not affect the representativeness of the sample for registered voters. Option E is correct.

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Complete question:

A polling firm is interested in surveying a representative sample of registered voters in the United States. The firm has automated its sampling so that random phone numbers within the United States are called. Each time a number is called, the procedure below is followed. - If there is no response or if an answering machine is reached, another number is automatically called. - If a person answers, a survey worker verifies that the person is at least 18 years of age. - If the person is not at least 18 years of age, no response is recorded, and another number is called. - If the person is at least 18 years of age, that person is surveyed. Some people claim the procedure being used does not permit the results to be extended to all registered voters. Which of the following is NOT a legitimate concern about the procedure being used? (A) Registered voters with children under the age of 18 years may be underrepresented in the sample. (B) Registered voters with unlisted telephone numbers may be underrepresented in the sample. (C) Registered voters who have more than one telephone number may be overrepresented in the sample. (D) Registered voters who live in households consisting of more than one voter may be underrepresented. (E) People who are not registered to vote may bias the sample results.

Since b matrix forms a basis for the nullspace of a, we know that the left nullspace of a is orthogonal to the nullspace of a, which has dimension 3. Therefore, the dimension of the left nullspace of a is 5 - 3 = 2.

Given that b = {v1, v2, v3} forms a basis of the nullspace of a, we know that a(v1) = 0, a(v2) = 0, and a(v3) = 0. This means that the columns corresponding to v1, v2, and v3 in matrix a are linearly dependent and can be expressed as linear combinations of each other.
To find the rank of a, we need to find the number of linearly independent columns in a. Since we know that the columns corresponding to v1, v2, and v3 are linearly dependent, we can remove them from a and still have the same nullspace. This means that the rank of a is 5 - 3 = 2.
The dimension of the columnspace of a is equal to the rank of a. So, the dimension of the columnspace of a is 2.
The left nullspace of a is the set of all vectors x such that x^T a = 0. Since the nullspace of a consists of all vectors that satisfy a(v) = 0 for v in R^5, the left nullspace of a is the set of all vectors x in R^3 such that x^T b = 0.

Since b forms a basis for the nullspace of a, we know that the left nullspace of a is orthogonal to the nullspace of a, which has dimension 3. Therefore, the dimension of the left nullspace of a is 5 - 3 = 2.

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Answer: A. p=2

Step-by-step explanation:

Since the numerator (top number) of the first equation is missing you have to look for a common factor in the denominator(bottom number). Very similar to dividing. Just divide 12 (the denominator of the completed fraction) by 3 (the denominator of the incomplete fraction). This will help us find out how much the fraction changed since they are equal to each other the numbers are changed but its value is still the same.

12 divided by 3 is 4

so now we know that they multiplied the first fraction by 4 to get the second fraction, so all we have to do is figure out what number we need to multiply by 4 to get 8. Again similar to dividing, you divide 8 by 4.

8 divided by 4 is 2

So the answer would be A which is p=2.

Answer:

8 - w

Step-by-step explanation:

In my opinion, an expression for eight minus w would be 8 - w. Thanks.

Hope it helps.

Answer:

LH: 5 x 7 = 35 m²

LW: 5 x 4 = 20 m²

WH: 4 x 7 = 28 m²

Add and Double: 35 + 20 + 28 = 83 m², 83 x 2 = 166 m²

Surface Area: 166 m²

The equation 5x - (3 - 2x) = -(-x- 7) + 6x is an equation with no solution. It simplifies to 0 = 10

How to simplify an equation with no solution?

An equation with no solution is a type of equation that is never true, no matter what we replace the variable with e.g.  6x + 10 = 6x - 10. This equation has no solution because is no value that will ever satisfy this type of equation

Given:  the equation 5x - (3 - 2x) = -(-x- 7) + 6x

5x - (3 - 2x) = -(-x- 7) + 6x

Clear the parenthesis:

5x - 3 + 2x = x + 7 + 6x

Add/subtract like terms:

7x -3 = 7x + 7

Collect like terms:

7x -7x = 7 + 3

0 = 10

Since 0 is not equal to 10, therefore this expression has no solution

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Answer:

I don’t know the answer choices but there is a high probability of him choosing an apple first

Step-by-step explanation:

It is because there are more in the box, there is also a high probability of him choosing an orange next but it will not be a pattern. Sorry if I’m wrong :(

The calculated value of the correlation coefficient is not significant when the sample volume n = 10.

The calculated value of the correlation coefficient is 0.5 when the sample volume n = 10.

To check the hypothesis about significance of the correlation coefficient (α = 0.05), we will use the critical values of the correlation coefficient for a two-tailed test with a 5% significance level.

To check the hypothesis, we perform the following steps:

Null hypothesis (H0): There is no significant correlation between the two variables.

Alternate hypothesis (H1): There is a significant correlation between the two variables.

Critical values for a two-tailed test with a 5% significance level with n-2 degrees of freedom can be found in a table. The value of the correlation coefficient for n = 10 is 0.632. If the calculated value of the correlation coefficient is greater than 0.632, then the null hypothesis is rejected because the correlation coefficient is significant.

However, if the calculated value of the correlation coefficient is less than 0.632, then the null hypothesis is not rejected because the correlation coefficient is not significant. Here, the calculated value of the correlation coefficient is 0.5 which is less than 0.632, therefore, the null hypothesis is not rejected. Thus, the answer is not significant.

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The area of the smaller octagon is 505.3 square feet.

An octagon is a geometrical shape that has eight sides and angles. When you are given a problem involving an octagon, the first thing you want to do is figure out its dimensions. In this particular problem, we are given the side length of a larger octagon and its area. We are then asked to find the area of a smaller octagon with a specific perimeter.

Let the length of each side of the smaller octagon be represented by s feet, then its

Perimeter = 8s feet.

Now, the perimeter of the smaller octagon is given as 82 feet.

Therefore,

8s = 82s = 10.25 feet

Area of the larger octagon = 724.56 square feet

Area of the smaller octagon = (s/12.25)² × 724.56 square feet.

Replacing s by 10.25 feet, we have

Area of the smaller octagon = (10.25/12.25)² × 724.56 square feet

= (0.83673)² × 724.56 square feet

= 0.6977 × 724.56 square feet

= 505.3 square feet

Therefore, the area of the smaller octagon is 505.3 square feet.

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AAA ( Angle - Angle - Angle) congruence rule is one of congruence postulate but not preferable, for showing the similarity in two triangles

Two triangles are said to be congruent if one can be superimposed on the other exactly by rigid body motion, and the congruence theorem gives the conditions under which this occurs.

AAA Congruence rule:

It is stands for angle-angle-angle Congruence rule. When all three angles of one triangle is equals to the corresponding angles of another triangle. but it is possible if and only if the corresponding sides of both triangles are equal and when all three sides of two triangles are equal to each other then we use SSS Congruence rule. So, it not considered as preferable congruence rule . For example, In ∆ABC and ∆PQR

all three angles of ∆ABC is equal to corresponding angles of ∆PQR. So,∆ABC and ∆PQR are congruent.

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Kay can paddle at a speed of 8 miles per hour in still water.

We have,

Distance = Rate x Time

Let's let the speed of the canoe in still water be represented by v

(in miles per hour).

When Kay paddles downstream (with the current), her effective speed is (v + 2) miles per hour, and when she paddles upstream (against the current), her effective speed is (v - 2) miles per hour.

We know that the time it takes her to paddle downstream 10 miles is the same as the time it takes her to paddle upstream 6 miles.

Therefore, we can set up the equation:

10 / (v + 2) = 6 / (v - 2)

We can now solve for v.

First, we'll cross-multiply:

10(v - 2) = 6(v + 2)

Simplifying:

10v - 20 = 6v + 12

4v = 32

v = 8

Thus,

Kay can paddle at a speed of 8 miles per hour in still water.

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Answer:

x+5=23

 -5=-5

x=18

Step-by-step explanation:

i hope this helps you i solved it sorry if it didnt.

The party was attended by Karen, her mother, 4 other adults, and 110 of Karen's friends, for a total of $ 555.

Since Karen invited 150 friends to her 15th birthday party, but not everyone can attend, Karen's mother want one adult for every 25 of her friends, and the cost of food is $ 20 for every four of her friends, and the adults eat for free, if a total of 116 people (including Karen and her mother) go to the party, to determine how many are adults and how many are Karen's friends and how much will the food cost, the following calculations must be performed:

Therefore, the party was attended by Karen, her mother, 4 other adults, and 110 of Karen's friends, for a total of $ 555.

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Answer:

y=22.5

Step-by-step explanation:

Answer:

Photo :)

Step-by-step explanation:

Got it right :))

Answer:

The expressions have equivalent values for any value of x

The expressions have equivalent values when x = 6.

When x=10, both expressions have a value of 33

Step-by-step explanation:

Answer:

  see below for the meaning of a, b, c, k, p, q.

Step-by-step explanation:

You want the minimum value of a quadratic function.

The extreme will be a minimum if the sign of the leading term is positive. It will be a maximum if the sign of the leading term is negative.

The standard form equation of a parabola is ...

  f(x) = ax² +bx +c

The x-coordinate of the extreme value (maximum or minimum) is ...

  x = -b/(2a)

The y-coordinate of the extreme value, the maximum or minimum, is ...

  y = -b²/(4a) +c

The extreme point is (-b/(2a), -b²/(4a) +c).

The vertex form equation of a parabola is ...

  f(x) = a(x -h)² +k

The coordinates of the vertex (extreme point) are (h, k).

The factored form of the equation of a parabola is ...

  f(x) = a(x -p)(x -q)

where p and q are the x-intercepts.

The coordinates of the extreme point are ((p+q)/2, -a/4(p-q)²).

__

Additional comment

As you can see, the way you find the minimum (or maximum) value depends on what you're starting with. In general that value is the y-value of the vertex. We have also shown the x-value of the vertex, because you may be asked for the coordinates of the minimum (or maximum) point.

You may see the quadratic function in other forms. Generally, those forms can be rearranged to one of these forms. Obviously, if you're looking for the vertex, the "vertex form" is the easiest place to start.

The value of 'a' is the leading coefficient in every case.

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To find the minimum value of a quadratic equation, you can use either the vertex formula or completing the square method. The minimum value occurs at the vertex of the parabola.

To find the minimum value of a quadratic equation, you can use either the vertex formula or completing the square method.

Vertex Formula:

Completing the Square:

By using either of these methods, you can find the minimum value of a quadratic equation.

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Answer:

Contained in.

Step-by-step explanation:

The correct answer to given question is "contained in". This is because of the fact that it was extracted as it was stated in the source or authorized document without any need to add any information, analyze or interpret the information in the new document.

The concept that was used to determine the derivative classification of the new document is "revealed by".

This is so because the new document breaks down the information that emerges from the source document, thus revealing the details that are not specified in it, giving more weight to the information and allowing those who read said information to acquire greater knowledge.

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4 • 23 = 92 so the correct answer is a  4(20+3).

Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between.

For example, x + y is an expression, where x and y are terms having an addition operator in between.

Expressions can be simplified to form an answer. For example, 3+6-2 is an expression that can be simplified to 7. There are two different ways to simplify arithmetic expressions and algebraic expressions. We use the bracket open division multiplication addition subtraction rule which means the operations are performed in the given manner to simplify them.

For example, 2x+5x results in 7x, whereas 7ab-b is an expression that has two unlike terms, which cannot be added.

Checking for all the options:

option a) 4 (20+3)=4 * 23 = 92

option b) 4 (2 + 13) = 4 * 15 =60

option c) 4 (20 + 30) = 4 * 50 =200

option d) 4 (2 + 3) = 4 * 5 = 20

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A new sample size of at least 537 fish to estimate the true mean length with a margin of error of 0.5 centimeters and 95% confidence.

To determine the size of a new sample so that the true mean length is estimated with a margin of error of 0.5 centimeters with 95% confidence, we need to find the standard error of the mean and use it in the formula for the margin of error.

The formula for the margin of error is: ME = z * (σ/√n)

where z is the z-score corresponding to the desired confidence level, σ is the standard deviation of the population, and n is the sample size.

We can estimate the standard deviation of the population using the sample variance, which is given as 34.9.

The standard deviation is the square root of the variance, so σ = √34.9

= 5.91.

To find the standard error of the mean, we divide the standard deviation by the square root of the sample size:

SEM = σ/√n

= 5.91/√n We want the margin of error to be 0.5 centimeters, so we can set up the equation:

0.5 = z * (5.91/√n)

To solve for n, we need to know the value of z for a 95% confidence level.

This corresponds to a z-score of 1.96. Substituting this into the equation gives: 0.5 = 1.96 * (5.91/√n)

Simplifying and solving for n gives: √n = 1.96 * (5.91/0.5) √n

n =(23.18)

n = 537

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Answer:

Step-by-step explanation:

1.1. 500 centimeters is equal to 5 meters. 1.2 A = L × W. 1.3. A = π × r^2. 1.4. A = H × W and 1.5. A = H × W.

1.1 Converting 500 cm to meters:

To convert centimeters (cm) to meters (m), we divide the length in centimeters by 100. This conversion is based on the fact that there are 100 centimeters in one meter. So, to convert 500 cm to meters, we divide 500 by 100:

500 cm ÷ 100 = 5 meters.

Therefore, 500 centimeters is equal to 5 meters.

1.2 Calculating the area of one window:

To calculate the area of a window, we need the dimensions (length and width) of the window. Let's assume the length of the window is L meters and the width is W meters. The area (A) of the window can be calculated by multiplying the length and width:

A = L × W

1.3 Calculating the area of the vent:

To calculate the area of a circular vent, we need the radius (r) or the diameter (d) of the vent. Let's assume the radius of the vent is r meters. The area (A) of the circular vent can be calculated using the formula:

A = π × r^2

where π is approximately 3.14159.

1.4 Calculating the area of the rectangular part of the wall:

To calculate the area of a rectangular part of the wall, we need the height (H) and width (W) of that section. The area (A) can be calculated by multiplying the height and width:

A = H × W

1.5 Calculating the area of the gable:

To calculate the area of a gable, we need the height (H) and width (W) of the gable. The area (A) of the gable can be calculated by multiplying the height and width:

A = H × W

Please provide the specific dimensions for the window, vent, rectangular part of the wall, and gable so that we can calculate their respective areas accurately.

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According to the proof, equal difference property is not satisfied by the function f(x).

There are four binary variables, x1, x2, x3, and x4.

The binary format is now converted to hexadecimal format, and the values are stored as A, B, C, and D, accordingly.

Convert every four bits of a binary value to a hexadecimal value.

ex: Split into 4 bits: x1 = 00000000 = 0000 0000 = 0 0 (convert the 4 bits to hex)

A = 00 ( hexadecimal of x1 )

B= 01 ( hexadecimal of x2 ) ( hexadecimal of x2 )

C=02 ( hexadecimal of x3 ) ( hexadecimal of x3 )

D=03 ( hexadecimal of x4 ) ( hexadecimal of x4 )

The function in question is f(x) = BS(x), which means that it performs byte alternation on the input x.

This means that f(x1) = 63, f(x2) = 7C, f(x3) = 77, and f(x4) = 7B.

We must now demonstrate that x1 xor x2 equals x3 xor x4 and that f(x1) xor f(x2) does not equal f(x3) xor f(x4) (x4).

If x1 xor x2 = 00, then xor 02 = 02 xor 01 = 01 x3 xor x4 03 = 01 So, x1 Equals x2 OR x3 OR x4 In the present, f(x1) xor f(x2) = 63 xor 7C = 1f f(x3) xor f(x4) = 77 xor 7B = 0C Due to f(x1) xor f(x2) not being equivalent to f(x3) xor f(x4).

Hence, the equal difference property is not satisfied by the function f(x), which is the Byte Substitution (BS) function of AES, according to the proof.

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Answer:

8.3 miles

Step-by-step explanation:

In 3 hrs he can walk=5 miles

In an hour he can walk=5/3miles

=1.66 miles

In 5 hours he can walk=1.66*5miles

=8.3 miles

Hope this helps

Answer:

A) 4V15

Step-by-step explanation:

let me know if you need an explanation! hope this helpful! c:

In a simple linear regression problem, some key assumptions are made to ensure the model's validity and reliability. Out of the given options, assumption (c) is stated incorrectly.

Assumption (a) states that the distribution of the error term is normal. This assumption is correct, as the error term's normal distribution allows for accurate statistical inferences and hypothesis testing in the regression analysis.
Assumption (b) states that the mean of the error term is 0. This assumption is also correct, as it implies that there is no systematic bias in the model. The errors, on average, should not overestimate or underestimate the dependent variable.
Assumption (c) states that the variance of the error term increases as x increases. This assumption is incorrect, as it contradicts the homoscedasticity assumption in linear regression. The correct assumption is that the variance of the error term should be constant across all levels of the independent variable (x). This constant variance ensures that the model's predictions are equally reliable for all values of x.
Assumption (d) states that the errors are independent. This assumption is correct and crucial for a linear regression analysis. The independence of errors means that the error term for one observation is not related to the error term of any other observation. This prevents any underlying patterns or relationships in the data from being mistakenly attributed to the linear relationship between the independent and dependent variables.
In summary, assumption (c) is stated incorrectly, as the variance of the error term should remain constant across all values of the independent variable in a simple linear regression analysis.

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Answer:

A.2

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

Answer:

6x^2 + 5x + 6

Step-by-step explanation:

Distributive property

Answer:

=6x^2+5x−6

Step-by-step explanation:

Using the foil method, 3x*2x+3x*3+-2*2x+-2*3

The requried solution of the given inequality is x > 5 and there is an open circle at 5  and a bold line starts at 5 and points to the right.

As mentioned in the question,

We have,

–3(2x – 5) < 5(2 – x)

Simplify the above inequality,

-6x+15 < 10-5x
x > 5

Since on the number line, there is an open circle at 5  and a bold line starts at 5 and points to the right.

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