x²+xy+y²
help me simplify it

The critical chi-square value for a one-tailed test (right tail) when the level of significance is 0.1 and the sample size is 15 is approximately 21.064.

Find the critical chi-square value for a one-tailed test (right tail) when the level of significance is 0.1 and the sample size is 15, follow these steps:
Determine the degrees of freedom: The degrees of freedom (df) can be calculated as df = sample size - 1. In this case, df = 15 - 1 = 14.
Identify the level of significance: The level of significance is given as 0.1.
Find the critical chi-square value: You can use a chi-square table or an online calculator to find the critical value. With a level of significance of 0.1 and 14 degrees of freedom, the critical chi-square value for a one-tailed test (right tail) is approximately 21.064.
The critical chi-square value for a one-tailed test (right tail) when the level of significance is 0.1 and the sample size is 15 is approximately 21.064.

Read more about one-tailed test.

https://brainly.com/question/31270353

#SPJ11

Coating the seed typically improves seed quality and germination rates, so the same seeding rate can be maintained even with coated seed.

To convert mass-based seeding rates to population-based establishment rates, we need to consider the area conversion factors provided:

a. Given a seeding rate of 60 lbs/acre for cereal rye, we can convert it to seeds per square foot by using the conversion factor of 1 acre = 43,560 square feet.

b. Given a seeding rate of 15 kg/ha for crimson clover, we can convert it to seeds per square meter using the conversion factor of 1 hectare = 10,000 square meters.

To convert population-based seeding rates to mass-based seeding rates, we can use the given area conversion factors:

a. Given a seeding rate of 30 plants/square foot for oats, we can convert it to pounds of seed per acre.

b. Given a seeding rate of 20 plants/square meter for hairy vetch, we can convert it to kilograms of seed per hectare.

Learn more about square here:

https://brainly.com/question/14198272

#SPJ11

Answer: B. The procedure for constructing the confidence interval is robust. The larger the sample​ size, the more resistant the mean.​ Therefore, the confidence interval is more robust.

Step-by-step explanation:

Large sized data samples usually have more stability than data with small samples, they yield a mean value which edges closer to the value of the population data. This means that large size data samples will have a mean which is more resistant to change than samples with a lower sample size. The confidence interval gives robustness while constructing a model by giving te leverage for a range of values based in a certain level of confidence upon which a statistical vale can be tested for validity.

True. If matrix A is an n × n matrix with linearly independent eigenvectors v1, v2, ..., vn, then the n × n matrix P = [v1 v2 ... vn] forms a matrix of eigenvectors. In other words, the columns of matrix P are the eigenvectors of matrix A.

1. When a matrix A has linearly independent eigenvectors v1, v2, ..., vn, it means that each eigenvector corresponds to a distinct eigenvalue. The eigenvectors span the entire vector space of dimension n.

2. The matrix P = [v1 v2 ... vn] is constructed by arranging the eigenvectors v1, v2, ..., vn as columns. Since the eigenvectors are linearly independent, the matrix P formed by these columns is invertible.

3. When we multiply matrix P by its inverse P^(-1), we obtain the identity matrix I. This implies that P^(-1) exists and is the inverse of P.

4. Now, let's consider the equation A * P = P * D, where D is a diagonal matrix that contains the eigenvalues corresponding to the eigenvectors v1, v2, ..., vn along its diagonal.

5. Multiplying both sides of the equation by P^(-1) from the left, we get P^(-1) * A * P = P^(-1) * P * D, which simplifies to P^(-1) * A * P = D.

6. Since P^(-1) exists, we can rewrite the equation as A = P * D * P^(-1). This equation shows that matrix A can be diagonalized using the matrix P formed by the eigenvectors and its inverse P^(-1).

7. Therefore, matrix P = [v1 v2 ... vn] is indeed an n × n matrix consisting of linearly independent eigenvectors of matrix A.

learn more about linearly independent eigenvectors here: brainly.com/question/32355061

#SPJ11

Answer: x = 5

Step-by-step explanation: 12 and 7.5 are both multiples of 3. So basically, 12/8 is simplified to 3/2. If we are doing the same kind of formula as 12/8, then it would be 7.5/5 since 5 is equal to 2/3 of 7.5

Happy to help!

Answer:

-5/2

Step-by-step explanation:

for perpendicularity;

\(m1 = \frac{ - 1}{m2} \)

where m1 is first slope

and m2 is second slope

so here, let m1 be green line slope

and m2 be red line slope

thus,

\(m2 = \frac{ - 1}{m1} \)

\(m2 = \frac{ - 1}{ \frac{2}{5} } = - 1 \div \frac{2}{5} \)

\( = - 1 \times \frac{5}{2} = \frac{ - 5}{2} \)

Answer:

C

Step-by-step explanation:

The equation formed by the description in question is: x + 11 = 2(x - 12), and the solution for this equation is: x = 35 .

What is equation?

Am equation is a mathematical statement in which we show that two amounts or expressions are equal using mathematical symbols.

For example 2x + 3y = 10

Let the number be x,

As given in the question, Number increased by 11.

this can be written as expression:

x + 11

Again given in the question ,

twice the number decreased by 12

this can be written as expression:

2(x - 12)

Equating both expressions:

x + 11 = 2(x - 12)

x/2 + 11/2 = x - 12

11/2 + 12 = x - x/2

(35/2 )2 = x

x = 35

Therefore, the solution for the equation formed is x = 35

To know more about equation, go to link

https://brainly.com/question/22688504

#SPJ13

The speed of the particle when it is moving parallel to the y-axis is approximately 17.88 m/s.

When the particle moves parallel to the y-axis, its velocity component in the x-direction is zero. Therefore, we need to find the value of t for which the x-component of the velocity becomes zero.

Given that the x-component of the velocity is (2t - 8), we set it equal to zero and solve for t:

2t - 8 = 0

2t = 8

t = 4

At t = 4 seconds, the particle is moving parallel to the y-axis. To determine the speed of the particle at this instant, we calculate the magnitude of its velocity:

v = √[(2t - 8)^2 + ((2/t^2) - 18)^2]

v = √[(2(4) - 8)^2 + ((2/(4^2)) - 18)^2]

v = √[0^2 + ((2/16) - 18)^2]

v = √[0 + (-17.875)^2]

v ≈ 17.88 m/s

Therefore, the speed of the particle when it is moving parallel to the y-axis is approximately 17.88 m/s.

For more information on velocity visit: brainly.com/question/14407744

#SPJ11

Answer:

He is not

In school B, the angle representing the sector of students that like tigers is 90 degrees while in school A, the angle representing the sector of students that like tigers is larger than 90 degrees. this is determined by perusing the images visually.

Step-by-step explanation:

Please find the complete question in the attached image

Pie chart is a graph used to represent numeric information. the sum of angles in a pie chart equals 360 degrees. the pie chart is usually separated into sectors to represent numeric information

the angle representing the students that like tigers in school A = 0.5 x (360 - 60) = 150 degree

Answer:

1:1 or one red circle to one blue circle

There is one red and one blue circle

Answer:

105.962

Step-by-step explanation:

Answer:

960 or 64

Step-by-step explanation:

4•6=24

8•5=40

24+40=64

or

24•40=960

Answer:

doted is shaded region.

The true statements are

The original statement is given as:

If a number is negative, the additive inverse is positive

This can be represented as

If p, then q

i.e. if p → q

So, (a) is correct

For the inverse, we simply negate the hypothesis and the conclusion

i.e. if ¬p → ¬q ----(b) is correct

For the converse, we simply switch the hypothesis and the conclusion

i.e. if q → p ----(e) is correct

Hence, the true statements are (a), (b) and (e)

Read more about conditional statements at:

https://brainly.com/question/4421013

#SPJ1

To determine if the linear system corresponding to an augmented matrix [a1 a2 a3 b] has a solution, we can check whether the vector b is in the span of the vectors {a1, a2, a3}.

In linear algebra, the augmented matrix represents a system of linear equations. The columns a1, a2, and a3 correspond to the coefficients of the variables in the system, while the column b represents the constants on the right-hand side of the equations. To check if the system has a solution, we need to determine if the vector b is a linear combination of the vectors a1, a2, and a3.

If the vector b lies in the span of the vectors {a1, a2, a3}, it means that b can be expressed as a linear combination of a1, a2, and a3. In other words, there exist scalars (coefficients) that can be multiplied with a1, a2, and a3 to obtain the vector b. This indicates that there is a solution to the linear system.

On the other hand, if b is not in the span of {a1, a2, a3}, it implies that there is no linear combination of a1, a2, and a3 that can yield the vector b. In this case, the linear system does not have a solution.

Therefore, determining whether the vector b is in the span of {a1, a2, a3} allows us to determine if the linear system corresponding to the augmented matrix [a1 a2 a3 b] has a solution or not.

Learn more about matrix here:

https://brainly.com/question/29132693

#SPJ11

Answer: hola

Step-by-step explanation:

Answer: y = -2x/3 + 5

Step-by-step explanation:

y = mx + b

Answer:

C. -336

Step-by-step explanation:

1. Substitute 25 for x as g(25) simply means x = 25

2. Now that the equation is g(x) = 24(25 - 39), solve what's within the parenthesis first due to PEMDAS or subtract 25 - 39.

3. Now that the equation is g(x) = 24(-14) due to subtracting 25 and 39, multiply 24 by -14 since there is no sign. And a parenthesis with a number in it besides a number with no parenthesis signifies multiplication.

4. Now the answer found is -336.

Answer:  = 16

Step-by-step explanation:

The value of f(4) can be found by replacing x with 4 in the equation f(x) = 2x + 3. So, f(4) = 2(4) + 3 = 11.

The value of g(4) can be found by replacing x with 4 in the equation g(x) = x^2. So, g(4) = 4^2 = 16.

Answer:

4.59*\(10^{-7}\)

Step-by-step explanation:

We need to move the decimal so there is only one zero to the left of the decimal point. Since the decimal is being moved to the right, it is a negative exponent.

Step-by-step explanation:

assuming the above shows (4y times 7)

2y -8 + 28y + 2y +4

32y -4

Answer:

Simple maths

Total programs to be shipped will be?

Total programs = 5400

Programs that will be in one box will be?

programs per box = 90

To find the number of boxes will be?

total programs/programs per box

Total box needed = 5400/90 = 60boxes

#SPJ1

Let's calculate the total cost of all the items purchased by the computer club:

Cost of 14 portfolios = 14 * $24.59

Cost of 14 binders = 14 * $12.92

Cost of 14 school sweatshirts = 14 * $14.00

Cost of 14 music cases = 14 * $1.25

Cost of 14 phone cases = 14 * $1.99

Cost of 14 mouse pads = 14 * $2.14

Total cost of all items = Cost of 14 portfolios + Cost of 14 binders + Cost of 14 school sweatshirts + Cost of 14 music cases + Cost of 14 phone cases + Cost of 14 mouse pads

Plugging in the given values:

Total cost of all items = (14 * $24.59) + (14 * $12.92) + (14 * $14.00) + (14 * $1.25) + (14 * $1.99) + (14 * $2.14)

Now, the computer club will pay for 40% of the total cost. To calculate this, we can multiply the total cost by 40% (or 0.40):

Club's payment = 0.40 * Total cost of all items

The remaining cost will be divided equally among the 14 members:

Remaining cost per member = (Total cost of all items - Club's payment) / 14

Plugging in the values and calculating:

Club's payment = 0.40 * ((14 * $24.59) + (14 * $12.92) + (14 * $14.00) + (14 * $1.25) + (14 * $1.99) + (14 * $2.14))

Remaining cost per member = ((14 * $24.59) + (14 * $12.92) + (14 * $14.00) + (14 * $1.25) + (14 * $1.99) + (14 * $2.14) - Club's payment) / 14

So, each member of the computer club will owe the calculated value for "Remaining cost per member".

Hope this is good

Frederick Taylor's theory is known as "scientific management," which aimed to improve workplace productivity by emphasizing efficiency and standardization.

Here are some pros and cons of his theory:

Pros:

1. Increased productivity and efficiency: Taylor's approach helped companies streamline their processes and make better use of their resources. This led to increased productivity and efficiency, which can lead to greater profits and growth.

2. Improved worker skills: By breaking down work into smaller tasks and optimizing them, Taylor's method allowed workers to learn new skills and become more specialized in their work. This can lead to a sense of mastery and increased job satisfaction.

3. Clear division of labor: Taylor's method led to a clear division of labor, which allowed companies to better organize their workers and maximize their output. This also helped to reduce conflict and confusion in the workplace.

Cons:

1. Dehumanization of workers: Taylor's approach viewed workers as mere cogs in a machine rather than as human beings. This led to a lack of respect and dignity for workers, which can lead to low morale and high turnover rates.

2. Lack of creativity and innovation: Taylor's method emphasized standardization and efficiency over creativity and innovation.

3. Potential for abuse: Taylor's approach can be abused by employers who are more concerned with profit than with worker welfare.

Know more about the Frederick Taylor's theory

https://brainly.com/question/28609073

#SPJ11

Answer:

Step-by-step explanation:

Volume of the cube = s^3

s = 9cm

V = 9 * 9 * 9

V = 729 cm^3

d = mass / volume

d = 3645 / 729

d = 5 grams / cm^3

In mathematics, "\(a^2\)" denotes the square of a number or variable "a." It is calculated by multiplying "a" by itself.

4For example, if "a" is 5, then a^2 would be 5*5, which equals 25. When "a" represents a positive number, its square is always positive.

If "a" is negative, its square is still positive since a negative multiplied by a negative results in a positive.

In geometrical terms, if "a" represents the length of the side of a square, then a^2 represents the area of that square. This notation is part of the general concept of exponentiation.

Read more about exponents here:

https://brainly.com/question/13669161

#SPJ1

The Question in English

What does a^2 mean in mathematics

Where are the questions?

The approximate height of the cylindrical pepper shakers on the right filled with pepper is equal to option b. 80mm.

Let us consider V be the volume of the cylindrical paper,

r be the radius, and h be the height.

To estimate the height of the pepper in the shaker on the right,

Use the fact that the same amount of pepper was poured into each shaker.

This implies volume of pepper in each shaker is the same.

Since the shaker on the left was filled to a height of 45 mm,

The formula for the volume of a cylinder is,

V = πr^2h

Radius of left hand shakers is equal to 32mm

And radius of right hand shakers is equal to 24mm

Substitute the values we have,

⇒ π (32)^2 x 45 = π (24)^2 x h

Simplifying, we get,

⇒ h = 46080 / 576

⇒ h = 80mm

Therefore, the approximate height of the pepper in the shaker on the right is option b. 80 mm.

Learn more about height here

brainly.com/question/21933781

#SPJ4

The above question is incomplete, the complete question is:

Mr. Getting poured the same amount of pepper into each of the cylindrical pepper shakers shown below. The pepper in the shaker on the left is filled to a height of 45 millimeters. To what approximate height is the shaker on the right filled with pepper?

A 60 millimeters

B. 80 millimeters

C. 32 mm

D. 24 mm-

E. 100 mm