he alternative hypothesis is the hypothesis that an analyst is trying to prove true false

Answer:

x = 17.6

Step-by-step explanation:

use sine

⇒ sine = \(\frac{opposite}{hypotenuse}\)

⇒ sine 62 = \(\frac{20}{x}\)

sine of 62 is 0.88

⇒ 0.88 =  \(\frac{20}{x}\)

multiply 20 on both sides

⇒ 0.88 x 20 =  \(\frac{20}{x}\) x 20

⇒ 17.6 = x

Answer:

below

Step-by-step explanation:

Rate =  4/5 mi / 2/5 hr =  2 mi /hr

3/4 hr for lunch

20 miles / 2 miles/hr   + 3/4 hr =  10 3/4 hr to hike 20 miles with a lunch

The minimum selling price per television in negotiating a price for the special order should be $174.

To determine the minimum selling price per television for the special order, we need to consider the relevant costs associated with producing and selling the televisions.

The direct materials cost per television is $75, the direct labor cost is $55, and the manufacturing overhead cost is $44 (75% variable and 25% unavoidable fixed). These costs amount to $174 per television.

In addition to the production costs, there is a selling cost of $12 per television for shipping the special order. Therefore, the total cost per television for the special order is $174 + $12 = $186.

Since the regular selling price for the televisions is $220, Farnsworth should negotiate a minimum selling price per television of at least the total cost per television for the special order, which is $186.

Therefore, the minimum selling price per television should be $174.

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Dr. Dilorenzo is performing meta-analysis to combine the results of a number of studies investigating the relationship between day care quality and developmental outcomes among children aged 2 to 4.

Meta-analysis is a statistical method used to combine the results of multiple studies. The aim of a meta-analysis is to provide a more robust and reliable estimate of the relationship between two variables by combining the results of several studies.

In this case, Dr. Dilorenzo is conducting a meta-analysis to investigate the relationship between day care quality and developmental outcomes among children aged 2 to 4. The process of a meta-analysis typically involves the following steps:

Identifying relevant studies is the first step  to identify all the studies that have investigated the relationship between day care quality and developmental outcomes among children aged 2 to 4.

Selecting studies is the next step, Dr. Dilorenzo will select the studies that are most relevant and appropriate for the meta-analysis based on inclusion and exclusion criteria.

Extracting data is the next step, Dr. Dilorenzo will then extract the relevant data from each selected study, such as the sample size, the measure of effect size, and the level of significance.

Combining data is the next step, Dr. Dilorenzo will then combine the data from all the selected studies using a statistical technique called pooling. This technique calculates a weighted average of the effect sizes across all studies to provide a summary estimate of the relationship between day care quality and developmental outcomes.

Evaluating the quality of the studies is the next step, Dr. Dilorenzo will also evaluate the quality of the studies included in the meta-analysis, taking into account factors such as study design, sample size, and level of significance.

Finally, Dr. Dilorenzo will interpret the results of the meta-analysis to determine the overall relationship between day care quality and developmental outcomes among children aged 2 to 4.

The results of a meta-analysis can provide valuable information for policy makers, researchers, and practitioners by summarizing the current state of research on a particular topic.

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The distribution does not represent a probability distribution. The correct option is b.

A probability distribution should satisfy two main conditions: (1) the sum of the probabilities for all possible outcomes should be equal to 1, and (2) the probabilities for each outcome should be between 0 and 1 (inclusive).

In this distribution, the probabilities for the outcomes are 0.3, 0.4, 0.3, and 0.1 for the values of X as 3, 6, 9, and 0, respectively. However, the sum of these probabilities is 1.1, which violates the first condition of a probability distribution.

Therefore, this distribution does not meet the requirements of a probability distribution and is not a valid probability distribution. The correct answer is option b.

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The correct range for the graph is -5 ≤ x ≤ 2 and -2 ≤ y ≤ 3.

The correct range for the graph can be determined by identifying the minimum and maximum values for both the x and y coordinates of the points given.
Let's analyze the given segments:
1. The first segment goes from (-5, -2) to (0, -1).
  - The x-coordinate ranges from -5 to 0.
  - The y-coordinate ranges from -2 to -1.
2. The second segment goes from (0, -1) to (2, 3).
  - The x-coordinate ranges from 0 to 2.
  - The y-coordinate ranges from -1 to 3.
To find the overall range for the graph, we need to consider the combined range of both segments.
For the x-coordinate, the minimum value is -5 (from the first segment) and the maximum value is 2 (from the second segment). So, the correct range for the x-coordinate is -5 ≤ x ≤ 2.
For the y-coordinate, the minimum value is -2 (from the first segment) and the maximum value is 3 (from the second segment). So, the correct range for the y-coordinate is -2 ≤ y ≤ 3.
In summary:
- The x-coordinate ranges from -5 to 2.
- The y-coordinate ranges from -2 to 3.
This information provides the correct range for the graph.

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The Answer is A because it's Marie and I have been working with the other kids Jimmie I know I did it

Answer:

x > 6

Step-by-step explanation:

Given

3(x + 4) - 5(x - 1) < 5 ← distribute and simplify left side

3x + 12 - 5x + 5 < 5

- 2x + 17 < 5 ( subtract 17 from both sides )

- 2x < - 12

Divide both sides by - 2, reversing the symbol as a result of dividing by a negative value.

x > 6

For a one-tailed test (lower tail) using α = .005, z =

For a one-tailed test (lower tail) using α = .005, we need to find the z score that corresponds to an area of .005 in the lower tail of the standard normal distribution.

Looking at a standard normal distribution table, we find that the closest value to .005 is .0049, which corresponds to a z score of -2.58.

Since this is a lower-tailed test, we use the negative value of the z score, so the answer is:

z = -2.58

Therefore, the correct answer is -2.575 (rounded to three decimal places).

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Answer:

7

Step-by-step explanation:

hi I don't know what to do

\(\text{Given:} \\a_1=\frac79 \\ a_{13}=a_1+12d=\frac79+12d=\frac45 \\ \\\text{Find:} \\ a_7=a_1+6d\)

Upon solving for d and substituting it into \(a_7\)

\(d=\frac{1}{45 \times 12}\\\\a_7=\frac79+\frac{6}{45 \times 12}=\frac79+\frac{1}{90}=\frac{71}{90}\)

Answer:

He would have to use the method of polling

Step-by-step explanation:

Polliong would be the method used to solve hope this help

Answer:

39.06 m

Step-by-step explanation:

Given that,

Height of the building, h = 50 m

The angle of elevation at top of building is 52° when seen from a point on level ground.

We need to find the distance between point and foot of the building. Let the distance be d. Using trigonometry to find it. So,

\(\tan\theta=\dfrac{P}{B}\)

Where

P is perpendicular

B is base.

So,

\(\tan\theta=\dfrac{h}{d}\\\\d=\dfrac{h}{\tan\theta}\\\\d=\dfrac{50}{\tan(52)}\\\\d=39.06\ m\)

So, the distance between point and foot of the building is 39.06 m

Applying the trigonometry ratio, TOA, the distance between the point and the foot of the building is: 39.1 m.

Recall:

The information of the building has been sketched in the diagram shown in the image attached below. It shows a right triangle.

Apply the trigonometry ratio, TOA:

tan ∅ = opposite/adjacent

tan 52 = 50/x

x = 50/tan 52

x = 39.1 m

Therefore, applying the trigonometry ratio, TOA, the distance between the point and the foot of the building is: 39.1 m.

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The volume of the cylinder will be  2,904.8 inche³.

What is a cylinder?

A cylinder is a three-dimensional geometric shape that consists of two parallel circular bases connected by a curved surface. It can be thought of as a prism with curved faces. The height of a cylinder is the perpendicular distance between the bases, and the radius is the distance from the center of a base to its edge. The volume of a cylinder is given by  V = πr²h, where r = radius of the base and h= height of the cylinder.

Now,

Since the diameter is given as 15 inches, the radius is half of that, or r = 15/2 = 7.5 inches.

Substituting the given values, we get:

V = π(7.5)²(11)

V = 2,904.75 cubic inches

Rounding to the nearest tenth, we get:

Volume of the cylinder, V ≈ 2,904.8 inche³.

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Correct Question:- Find the volume of the cylinder to the nearest tenth. diameter = 15 in and height= 11 in.

Answer:

x = 0.2

Step-by-step explanation:

The process capability index Cpk for the provided process ≈ 0.7687.

To calculate the process capability index Cpk, we need to use the following formula:

Cpk = min((USL - μ) / (3 * σ), (μ - LSL) / (3 * σ))

where USL is the upper specification limit, LSL is the lower specification limit, μ is the process mean, and σ is the process standard deviation.

USL = 11.61 cm (upper specification limit)

LSL = 9.87 cm (lower specification limit)

μ = 10.85 cm (process mean)

σ = 0.33 cm (process standard deviation)

Substituting these values into the formula, we can calculate Cpk:

Cpk = min((11.61 - 10.85) / (3 * 0.33), (10.85 - 9.87) / (3 * 0.33))

Cpk = min(0.76 / 0.99, 0.98 / 0.99)

Cpk = min(0.7687, 0.9899)

Cpk = 0.7687 (rounded to four decimal places)

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Answer: 60% or 0.6

Step-by-step explanation:

A discount simply means the amount that is deducted from the normal cost of a good or service.

In the question above, the store was offering 40% as discount, this means that he'll only pay 60% of the price of the good. Note that (100% - 40% = 60%).

Therefore, the number that he should multiply the prices on the tags by to find the price he would have to pay will be 60% = 0.6.

Answer:

x = 67.5

Step-by-step explanation:

Exterior angles always add up to 360 degrees. We have a defined right angle which takes 90 off of our 360, giving us 270 degrees. If we have x as an individual angle and also as x 3 times, then x is appearing 4 times. To find x, we divide our 270 degrees by 4 to get 67.5  . We can check this using a reversive property by multiplying 67.5 by 4 and then adding 90.

360 - 90 = 270

270 / 4 = 67.5

67.5 = x

The given linear program can be solved using the simplex algorithm. The optimal solution is obtained by setting up the initial tableau and applying the simplex method. The optimal solution is x=100, y=0, and the maximum profit is $500. This means that the company should produce 100 units of x to maximize their profit, subject to the given constraints.

The given linear program is a maximization problem with three constraints. To solve this problem, we can use the simplex method, which involves converting the constraints to equations and setting up the initial tableau. The initial tableau for this problem is:

| Basic Variables | x | y | s1 | s2 | s3 | RHS |
|-----------------|---|---|----|----|----|-----|
| z               | 5 | 10| 0  | 0  | 0  | 0   |
| s1              | 1 | 0 | 1  | 0  | 0  | 100 |
| s2              | 0 | 1 | 0  | 1  | 0  | 80  |
| s3              | 2 | 4 | 0  | 0  | 1  | 400 |

We can see that the basic variables are s1, s2, and s3, and the non-basic variables are x and y. We can choose the most negative coefficient in the objective row, which is -5 for x, and pivot on the corresponding element in the tableau, which is 1 in the first row and first column. This results in the following tableau:

| Basic Variables | x  | y   | s1  | s2  | s3   | RHS   |
|-----------------|----|-----|-----|-----|------|-------|
| z               | 0  | 10  | -5  | 0   | 0    | 500   |
| s1              | 1  | 0   | 1   | 0   | 0    | 100   |
| s2              | 0  | 1   | 0   | 1   | 0    | 80    |
| s3              | 0  | 4   | -2  | 0   | 1    | 200   |

Now the basic variables are x, s2, and s3, and the non-basic variables are y and s1. We can see that the objective function has improved from 0 to 500, and the most negative coefficient in the objective row is now 0. We can conclude that the optimal solution has been reached, and it is x=100, y=0, with a maximum profit of $500.
Bn
The optimal solution to the given linear program is x=100, y=0, with a maximum profit of $500. This means that the company should produce 100 units of x to maximize their profit, subject to the given constraints. We can use the simplex method to solve linear programs like this one, by setting up the initial tableau and applying the pivot operations to improve the objective function. If the problem has multiple optimal solutions or is unbounded, we need to use additional techniques to determine the appropriate solution.

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You are a quadratic polynomial, specifically an equation of the form ax² + bx + c = 0, where a is not equal to 0, and one of the terms, c, is negative. The polynomial can be written as ax² - dx + c = 0, where d is the coefficient of the positive term.

A polynomial is an expression that consists of a combination of constants, variables, and exponents. A polynomial with three unlike terms is called a trinomial. A 2nd degree polynomial is also known as a quadratic polynomial.

Based on the given information, the polynomial can be written in the form: ax² + bx + c, where a, b, and c are constants, and x is the variable. Since only one of the terms is negative, either a, b, or c must be negative.

There are several possible answers to this question, as there are multiple combinations of constants that can fit the given criteria. Here are three possible answers:

1. 2x² + 3x - 4
2. -x² + 5x + 6
3. 4x² - 2x + 1

All of these polynomials have three unlike terms, are 2nd degree polynomial, and have only one negative term.

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The statement "a vector b in R^m is in the range of matrix A if and only if the equation Ax = b has a solution" is true.

The range of a matrix A, also known as the column space of A, consists of all possible linear combinations of the columns of A. If a vector b is in the range of A, it means that there exists a vector x such that Ax = b. This is because the range of A precisely represents all the possible outputs that can be obtained by multiplying A with a vector x.

Conversely, if the equation Ax = b has a solution, it means that b is in the range of A. The existence of a solution x guarantees that the vector b can be obtained as an output by multiplying A with x.

Therefore, the statement is true: a vector b in R^m is in the range of matrix A if and only if the equation Ax = b has a solution.

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As chairperson of the SRC Entertainment Desk, you were approached by L4 students who requested a farewell function since they are not included in the college graduation ceremony.

Subject: Proposal for Funding: Farewell Function for L4 Students , Dear [Name of Funding Organization], I hope this letter finds you well. I am writing to request funding for a farewell function to be organized for the L4 students of our campus. Since the implementation of the NCV program, only NATED students have been privileged to participate in the college graduation ceremony. It is important to address the concerns and provide a memorable farewell event for the L4 students, who have also contributed to the college community during their time here.

The proposed farewell function is intended to recognize the achievements and efforts of the L4 students. It would take place towards the end of the year, immediately after their final examinations. We envision an event that celebrates their accomplishments, allows for reflection, and provides networking opportunities with local companies who may be interested in the various skills offered by the college. To ensure the success of the farewell function, we are seeking financial support to cover the costs associated with venue rental, event decorations, refreshments, guest speakers, and invitations to local companies. The presence of local companies would provide an opportunity for the L4 students to showcase their skills and potentially explore job opportunities or internships.

We kindly request your organization's support in funding this farewell function. Your contribution would not only help create a memorable event for the L4 students but also demonstrate the commitment of our college and local businesses to recognizing the potential and talent of all our students, regardless of their program. Thank you for considering our proposal. We would be happy to provide further details and discuss this opportunity in person or via any preferred means of communication. We believe that by organizing this farewell function, we can foster a sense of inclusivity and support for all our students. Sincerely, [Your Name]Chairperson, SRC Entertainment Desk

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Answer:

121.4 is the answer ❣️

Answer:

The answer I got is 121.4

The dimensions of the park are obtained as 180 yards and 140yards respectively.

A linear equation is a equation that has degree as one.

To find the solution of n unknown quantities n number of equations with n number of variables are required.

Suppose the width of the rectangle be x yards.

Then, its length is given as x - 40 yards.

Since, the perimeter of a rectangle is given as 2(l + b).

Substitute the corresponding values to get the equation as follows,

640 = 2(x - 40 + x)

=> 640 = 2(2x - 40)

=> 2x - 40 = 640/2

=> 2x - 40 = 320

=> x = 360/2 = 180

Then, the length is given as 180 - 40 = 140 yards.

Hence, the dimensions of the park are obtained as 180 yards and 140 yards respectively.

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Answer:

as below

Step-by-step explanation:

9/32=3/4 * y/x

becasue this is multiplication of fractions ,  its' not too tough to figure out 3 times what makes 9 and 4 times what makes 32

y=3

x=8

so the answer is 3/8 mile

The length of the northern side of a rectangular plot is 3/8 mile.

Here,

Area of rectangular lot = 9/32 square mile.

Length of the western side of lot = 3/4 mile.

We have to find the length of the northern side.

What is Area of rectangle?

The area of a rectangle is product of length and width.

Now,

Area of rectangular lot = 9/32 square mile.

Length of the western side of lot ( width ) = 3/4 mile.

Let the length of the northern side ( length ) = x mile

So,

Area of rectangle = length x width

\(\frac{9}{32} = x * \frac{3}{4} \\\\x = \frac{9}{32} *\frac{4}{3} \\\\x = \frac{3}{8}\)

Hence, The length of the northern side of a rectangular plot is 3/8 mile.

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Answer:

acute: 9

obtuse: 2

right: 2

Sorry if it wrong

Compared to a 95% confidence interval, a 99% confidence interval will be wider.

A confidence interval is a range of values that is likely to contain the true population mean, with a certain level of confidence.

The level of confidence is usually represented as a percentage, such as 95% or 99%. The higher the level of confidence, the wider the confidence interval will be. This is because a higher level of confidence means that the researcher wants to be more certain that the true population mean falls within the interval, so they will make the interval wider to increase the chances of this happening.

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(D) the floor of a classroom is a perfect example of a line segment.

Therefore, (D) the floor of a classroom is a perfect example of a line segment.

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The correct form of the question is given below;
Which is an example of a line segment?

(A) the edge of a book

(B) the corner of a box

(C) a beam of light

(D) the floor of a classroom