i need help. what is the answer?

Answer:

ok but helppp meeeee nothinggggg

By analyzing the final simplex tableau, we can establish whether the LP is unbounded, has multiple optimal solutions, or has a unique optimal solution.

(a) Solving the LP graphically:

First, let's graph the constraints:

5x1 + 3x2 ≤ 12

4x1 + 2x2 ≤ 10

x1 + x2 ≤ 4

x1, x2 ≥ 0

Plotting these constraints will create a feasible region bounded by the lines and the non-negativity constraints.

Next, we need to identify the corner points of the feasible region. To do this, we can solve each pair of intersecting lines to find the intersection points.

Once we have the corner points, we can evaluate the objective function z = 5x1 + 3x2 at each corner point to determine the optimal solution point that maximizes z.

(b) Solving the LP using the Simplex Method:

The initial simplex tableau is formed by adding slack variables to the constraints and setting up the objective function row.

After performing the simplex iterations, we can obtain the final simplex tableau and read the optimal solution from it.

(c) Identifying all basic feasible solutions corresponding to each tableau of the Simplex Method and finding the corresponding point in the graph:

In each tableau of the Simplex Method, the basic feasible solutions correspond to the variables that have a value of zero in the objective row.

For each tableau, we can identify the basic feasible solutions and their corresponding points in the graph by setting the non-basic variables to zero and solving for the basic variables.

(d) Determining if the LP is degenerate:

An LP is considered degenerate if there are multiple solutions that give the same optimal objective function value.

To determine if the LP is degenerate, we need to examine the final simplex tableau and check if there are multiple solutions with the same optimal objective function value.

(e) Establishing if the LP is unbounded, has multiple optimal solutions, or has a unique optimal solution:

We can determine if the LP is unbounded, has multiple optimal solutions, or has a unique optimal solution by examining the final simplex tableau.

If there is a column in the objective row with all negative values or a row with all non-positive values, the LP is unbounded.

If the optimal objective function value appears multiple times in the objective row, the LP has multiple optimal solutions.

If the optimal objective function value appears only once and there are no other non-positive values in the objective row, the LP has a unique optimal solution.

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Step-by-step explanation:

Length of cube (L) = 1 ft

Volume of the cube

= L³

= 1³

= 1 ft³

Hope it will help :)❤

Answer:

D) 1

Step-by-step explanation:

D)1

to find the area follow the formula length * width * height

l * w * h

substitute the numbers

1 * 1 * 1

= 1

Answer:

C) nervous

In this organelle, carbon dioxide and water are converted to _________ and oxygen.

~glucose

Step-by-step explanation:

Answer:

Absolute value of |-6| is 6.

Step-by-step explanation:

6

Answer:

Hi! i think its like |-6|  = 6

Step-by-step explanation:

Please let me know if I'm wrong I hope this helped

The equation of a circle having endpoints of diameter as (4,9) and (4,-3) is (x - 4)² + (y - 3)² = 36.

The "center" of circle is called as midpoint of diameter.

The "x-coordinate" of "mid-point" is = (4+4)/2 = 4, and

The "y-coordinate" of "mid-point" is = (9+(-3))/2 = 3.

So, center of circle is (4,3),

The radius of circle is half the length of the diameter, which is distance between two endpoints of diameter. We find distance using distance formula:

⇒ distance = √((x₂ - x₁)² + (y₂ - y₁)²), where (x₁,y₁) and (x₂,y₂) are "end-points" of diameter.

⇒ distance = √((4 - 4)² + (9 - (-3))²)

⇒ √(144) = 12.

So, radius is 6.

The equation of circle with center (h,k) and radius "r" is : ⇒ (x - h)² + (y - k)² = r²,

Substituting the values

We get,

⇒ (x - 4)² + (y - 3)² = 6²,

⇒ (x - 4)² + (y - 3)² = 36,

Therefore, the equation of the circle is (x - 4)² + (y - 3)² = 36.

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Answer:

20³

(4.5)³

8000

Step-by-step explanation:

according to the question

(4.5)³

20³

20×20×20

8000

Answer:

8000 or (4*5)^3

Step-by-step explanation:

In the case of a 67-gon, it has 65 triangles, and each triangle contributes 180 degrees to the sum. Thus, the sum of the interior angles of the 67-gon is 11,700 degrees.

The sum of the interior angles of any polygon can be found using the formula:

Sum of interior angles = (n - 2) * 180 degrees,

where n represents the number of sides or vertices of the polygon.

In the case of a 67-gon, where n = 67, we can substitute the value into the formula:

Sum of interior angles = (67 - 2) * 180 degrees

                      = 65 * 180 degrees

                      = 11,700 degrees.

Therefore, the sum of the interior angles of a 67-gon is 11,700 degrees.

To understand why this formula works, we can consider the polygon as a collection of triangles. A polygon with n sides can be divided into (n - 2) triangles by drawing diagonals from one vertex to the other vertices. Each triangle has an interior angle sum of 180 degrees.

Since there are (n - 2) triangles in an n-sided polygon, the sum of the interior angles is (n - 2) multiplied by the sum of the angles of one triangle, which is 180 degrees. Hence, the formula (n - 2) * 180 degrees gives us the total sum of the interior angles.

In the case of a 67-gon, it has 65 triangles, and each triangle contributes 180 degrees to the sum. Thus, the sum of the interior angles of the 67-gon is 11,700 degrees.

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Answer:

156.25

Step-by-step explanation:

8x2 (2 years) = 16. 2500 / 16 = 156.25

Answer:

V=150

l Length  

10

w Width  

5

h Height  

3

Step-by-step explanation:

hope im right!

Answer:

It is 150!

Step-by-step explanation:

Took the test!

Please mark as brainliest!

-KanaKittyKat

The 95%-confidence interval for the percentage of students at UMass Boston who own a dog or cat is  (30.6% , 39.0%) .

In the question ,

it is given that ,

the number of students in the sample is (n) = 500  ,

percent of students that have a dog or cat is (p) = 34.8% = 0.348 ,

For 95% confidence interval for proportion , the Z  critical value is

Z = 1.96 ,

So , the 95% confidence interval can be calculated using the formula ,

= (p ± Z*√(1-p)/n)

= (0.348 ± 1.96*√(1 - 0.348)/500)

Simplifying further ,

we get ,

= (0.348 ± 0.042)

= (0.348-0.042 , 0.348+0.042)

= (0.306 , 0.390)

= (30.6% , 39.0%)

Therefore , the 95% confidence interval is (30.6% , 39.0%)  .

The given question is incomplete , the complete question is

A simple random sample of 500 students at UMass Boston is taken to estimate the percentage of all students at the university who own a dog or cat. of the students in the sample, 34.8% have a dog or cat . Find a 95%-confidence interval for the percentage of students at UMass Boston who own a dog or cat  is ?

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The ladder on pulling 6 feet father from the house now reaches 45.83 feet, which is lower than previous height.

The distance between ladder and house, the distance till ladder reaches and length of ladder given by Pythagoras theorem. The distance till ladder reaches is perpendicular, ladder is hypotenuse and the base is horizontal distance between the two. So, finding the base first.

Base² = 50² - 48²

Base² = 2500 - 2304

Base² = 196

Base = ✓196

Base or horizontal distance = 14 feet.

Now, on moving 6 feet, the horizontal distance will be 14 + 6 = 20 feet. Finding the new height or perpendicular now.

50² = 20² + Perpendicular²

Perpendicular² = 2500 - 400

Perpendicular² = 2100

Perpendicular = 45.83 feet

Hence, the ladder now reached to 45.83 feet height of the house.

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\(25,28,32,37,43,50,58,67.\)

\(\boxed{The\:eighth\:number\:in\:the\:pattern\:is\:67.}\)

\(\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}\)

\(25, 28, 32, 37, 43,50,58,67\\ ✒ \: 25 + 3 = 28 \\ ✒ \: 28 + 4 = 32 \\ ✒ \: 32 + 5 = 37 \\ ✒ \: 37 + 6 = 43 \\ ✒ \: 43 + 7 = 50 \\ ✒ \: 50 + 8 = 58 \\ ✒ \: 58 + 9 = 67\)

\(\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{.}}}}}\)

Answer:

lines are perpendicular

Step-by-step explanation:

Parallel lines have equal slopes

The product of the slopes of perpendicular lines = - 1

Calculate the slopes m of the 2 lines using the slope formula

m = \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)

with (x₁, y₁ ) = (7, 3 ) and (x₂, y₂ ) = (8, 7 )

m = \(\frac{7-3}{8-7}\) = \(\frac{4}{1}\) = 4

Repeat with

(x₁, y₁ ) = (- 5, - 4 ) and (x₂, y₂ ) = (- 1, - 5 )

m = \(\frac{-5-(-4)}{-1-(-5)}\) = \(\frac{-5+4}{-1+5}\) = \(\frac{-1}{4}\) = - \(\frac{1}{4}\)

Slopes are not equal so lines are not parallel

4 × - \(\frac{1}{4}\) = - 1

Then the 2 lines are perpendicular to each other

Answer:

The lines are parallel is the will never touch.

Step-by-step explanation:

a. If the null hypothesis is rejected, the alternative hypothesis is accepted, and the outcomes are statistically significant.

b. When the null hypothesis is not rejected, the alternate hypothesis is not accepted, and it does not imply that the null hypothesis is true; instead, it means that the available evidence is insufficient to establish a statistically significant difference between the data and the null hypothesis.

The claim, "The mean incubation period for the eggs of a species of bird is at least 31 days" represents the alternative hypothesis.

How to interpret a decision that (a) rejects the null hypothesis or (b) fails to reject the null hypothesis?

If the null hypothesis is rejected, the alternative hypothesis is accepted, and the outcomes are statistically significant.

When the null hypothesis is not rejected, the alternate hypothesis is not accepted, and it does not imply that the null hypothesis is true; instead, it means that the available evidence is insufficient to establish a statistically significant difference between the data and the null hypothesis.

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To test if there is a difference between the means of the two populations, we can perform a two-sample t-test. The null hypothesis is that there is no difference between the mean number of hours per week that a family with no children participates in recreational activities and a family with children participates in recreational activities.

Let's assume that the researcher has collected the following data:

Sample of families with no children: n1 = 30, sample mean = 4.5 hours per week, sample standard deviation = 1.2 hours per week.

Sample of families with children: n2 = 40, sample mean = 3.8 hours per week, sample standard deviation = 1.5 hours per week.

Using the critical value method, we need to calculate the t-statistic and compare it to the critical value from the t-distribution table with n1+n2-2 degrees of freedom and a significance level of α = 0.05.

The formula for the t-statistic is:

t = (x1 - x2) / sqrt(s1^2/n1 + s2^2/n2)

where x1 and x2 are the sample means, s1 and s2 are the sample standard deviations, and n1 and n2 are the sample sizes.

Plugging in the numbers, we get:

t = (4.5 - 3.8) / sqrt((1.2^2/30) + (1.5^2/40)) = 2.08

The degrees of freedom for the t-distribution is df = n1 + n2 - 2 = 68.

Using a t-distribution table, we find the critical value for a two-tailed test with α = 0.05 and df = 68 is ±1.997.

Since our calculated t-statistic of 2.08 is greater than the critical value of 1.997, we can reject the null hypothesis and conclude that there is a statistically significant difference between the mean number of hours per week that a family with no children participates in recreational activities and a family with children participates in recreational activities.

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Answer: B

Explanation: The range is a set or a range of y-values of a function. In the graph, the y-value points are -7, -4, 1, 3, and 7. So, the answer is B.

:)

Answer:

the g (7) - value

Step-by-step explanation:

sana maka tulong

Answer:

10 oz

Step-by-step explanation:

22 1/2 oz divided by 2 1/4 oz = 10 oz

10 oz x 2 1/4 oz = 22 1/2 oz

I hope I could help!

Answer: 11/10 x+ 3/8

Step-by-step explanation:

4/5x you can write as 8/10 x

11/10x + 3/8

Answer:

Rotate EFG around point E by 90 degrees clockwise and then translate downwards.

Rotate EFG around point F by 90 degrees counterclockwise and then reflect on a horizontal line e is on, and then translate EFG onto triangle PQR

Step-by-step explanation:

Not going to lie, they made it a lot harder without coordinates... so sorry no explanation...

Answer:

6m³ + 8m² + 12m

Step-by-step explanation:

With box, you would draw a box with dimensions 1 x 3. In the outer edge of the 1 side, you would put 2m. In the 3, you would put 3m², then 4m, then 6.

Multiply in the boxes and add total.

Then for standard, you would do

2m(3m² + 4m + 6) = 2m(3m²) + 2m(4m) + 2m(6) =

6m³ + 8m² + 12m

Hope this helps! :)

Answer:

7 - ?

Step-by-step explanation:

Write and expression like and you should have a right answer. Hope this helps and good luck :)

Answer:

x<7

Step-by-step explanation:

Hope this helps.

The most common error when entering a formula is to reference the wrong cell in the formula.

This error occurs when the cell references within a formula do not match the intended cells. It can lead to incorrect calculations and produce unexpected results. For example, if a formula is supposed to use data from cell A1 but mistakenly refers to cell B1, the calculation will be based on the wrong data. It is important to double-check and ensure that the cell references in a formula accurately reflect the intended data sources to avoid this common mistake.

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Answer:

Shelf A = $6 ;Shelf y = $4

Step-by-step explanation:

Let :

x = cost of items from shelf A

y = cost of items from shelf B

3x + 2y = 26 - - - - (1)

2x + 5y = 32 - - - - (11)

Using elimination method :

Multiply (1) by 2 and (11) by 3

6x + 4y = 52 - - - (111)

6x + 15y = 96 - - - (1V)

Subtract (1V) from (111)

-11y = - 44

y = 44/ 11 ; y = 4

Put y = 4 in (1)

3x + 2(4) = 26

3x + 8 = 26

3x = 26 - 8

3x = 18

x = 18 / 3

x = 6

You can use those variables specified to make symbolic relation between the cost and number of items. Then you can use any of the methods to solve the obtained system of equations.

The cost of items from shelf A is x = $6

The cost of items from shelf B is y = $4

Given that:

x represents the cost of an item from shelf A

y represents the cost of an item from shelf B

From given data, we have:

\(3 \times x + 2 \times y = \$26\\ 2 \times x + 5 \times y = \$32\)

Or, we get the system of equations as:

\(3x + 2y =26\\ 2x + 5y = 32\)

\(3x + 2y = 26\\ 2y = 26 - 3x\\ y = \dfrac{26-3x}{2} = 13 - 1.5x\)

Substituting this value of y in second equation, we get:

\(2x + 5y = 32\\ 2x + 5(13-1.5x) = 32\\ 2x - 7.5x + 65 = 32\\ -5.5x = -65 + 32\\ 5.5x = 33\\\\ x = \dfrac{33}{5.5}\\\\ x = 6\)

Using this value of x, we get:

\(y = 13 - 1.5x\\ y =13 - 1.5 \times 6\\ y = 13 - 9 = 4\)

Thus, we have:

The cost of items from shelf A is x = $6

The cost of items from shelf B is y = $4

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Answer:

15% of the students got d's, and 5% got f's.

Answer:

15% Of Students!

Hope that this helps!!! :)

To compute the values of (r) and (x) for the different states of the harmonic oscillator, we need to consider the wavefunction solutions for each state.

The wavefunctions for the harmonic oscillator are given by Hermite polynomials multiplied by a Gaussian factor. The energy eigenvalues for the harmonic oscillator are given by (n + 1/2) * h * ω, where n is the quantum number and ω is the angular frequency of the oscillator. (a) Ground State: The ground state of the harmonic oscillator corresponds to n = 0. The wavefunction for the ground state is: ψ₀(x) = (mω/πħ)^(1/4) * exp(-mωx²/2ħ), where m is the mass of the oscillator. In this state, the energy (E₀) is equal to 1/2 * h * ω. Therefore, for the ground state: (r) = 0 (since n = 0). (x) = √(ħ/(2mω)). (b) First Excited State:The first excited state corresponds to n = 1. The wavefunction for the first excited state is: ψ₁(x) = (mω/πħ)^(1/4) * √2 * (mωx/ħ) * exp(-mωx²/2ħ), where m is the mass of the oscillator. In this state, the energy (E₁) is equal to 3/2 * h * ω. Therefore, for the first excited state: . (r) = 1. (x) = √(ħ/(mω)). (c) Second Excited State:The second excited state corresponds to n = 2. The wavefunction for the second excited state is: ψ₂(x) = (mω/πħ)^(1/4) * (2(mωx/ħ)^2 - 1) * exp(-mωx²/2ħ)  where m is the mass of the oscillator. In this state, the energy (E₂) is equal to 5/2 * h * ω.

Therefore, for the second excited state: (r) = 2. (x) = √(ħ/(2mω)). In summary: (a) Ground State: (r) = 0, (x) = √(ħ/(2mω)). (b) First Excited State: (r) = 1, (x) = √(ħ/(mω)). (c) Second Excited State: (r) = 2, (x) = √(ħ/(2mω)).

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Answer:

RS = 45.9 feet

Step-by-step explanation:

Let the length of RS be represented by x. In the given triangle applying the required trigonometric function, we have;

Cos θ = \(\frac{Adjacent}{Hypotenuse}\)

Cos 54 = \(\frac{27}{x}\)

⇒ x = \(\frac{27}{Cos 54}\)

      = \(\frac{27}{0.5878}\)

x = 45.9340

x = 45.9 feet.

The length of RS in the given triangle is 45.9 feet.

Convert the rational number to decimals, then solve it as a decimal instead, (with the optional choice of re-converting it back to rational).