what is a line graph

Answer:

hi

Step-by-step explanation:

28.5

Answer:

15

Step-by-step explanation:

The given differential equation is exact and the solution of equation is x(ln(x) - 1) y + 3xy - x(ln(x) - 1) y + K = 0

To show that the given differential equation is exact, we first check if it satisfies the condition of exactness, i.e., if the partial derivative of the function with respect to y is equal to the partial derivative of the function with respect to x.

Let M(x, y) = ln(x) y/x and N(x, y) = 3 − ln(x). Then, we have:

∂M/∂y = ln(x)/x

∂N/∂x = -1/x

Since ∂M/∂y = ∂N/∂x, the given differential equation is exact.

To solve the differential equation, we need to find a function f(x, y) such that ∂f/∂x = M and ∂f/∂y = N.

Integrating M(x, y) with respect to x, we get:

f(x, y) = ∫M(x, y) dx = ∫ln(x) y/x dx

Using integration by parts, we get:

f(x, y) = x(ln(x) - 1) y + C(y)

where C(y) is the constant of integration with respect to x.

Taking the partial derivative of f(x, y) with respect to y and equating it with N(x, y), we get:

∂f/∂y = x(ln(x) - 1) + C'(y) = 3 - ln(x)

where C'(y) is the constant of integration with respect to y.

Solving for C'(y), we get:

C'(y) = 3 - ln(x) - x(ln(x) - 1)

Integrating C'(y) with respect to y, we get:

C(y) = 3y - x(ln(x) - 1) y + K

where K is the constant of integration with respect to y.

Therefore, the general solution of the given differential equation is:

x(ln(x) - 1) y + 3xy - x(ln(x) - 1) y + K = 0, where K is a constant.

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Answer: the answer is going to be 9

Answer:

9.4 rounded to the nearest 10th - 9

Step-by-step explanation:

If the tenth in the decimal is 4 or lower, (like 9.4 or 9.3) It would round down to 9, but if it were 5 or higher like (9.5) it would be 10.00 or 10 :)

Answer:

-9 is warmer

Step-by-step explanation:

because the lower the number the colder it is and the higher it is then the hotter it is

Answer:

2497.22...

Step-by-step explanation:

Answer:

x + (2x + 40) + (3x - 50) = 15002

Remove the parentheses

x + 2x + 40 + 3x - 50 = 15002

Combine like terms

x + 2x + 3x + 40 - 50 = 15002

6x - 10 = 15002

6x = 15002 + 10

6x = 15012

x = 15012/6

x = 2502

Step-by-step explanation:

Hope it helps :)

Brainliest pls?

Step-by-step explanation:

for that simple request there is nothing to solve, just to follow.

follow the functional definitions given.

we know d(1) and f(1). and you need the first 5 items ?

just calculate d(2) and f(2). from there then d(3) and f(3). and so on.

d(1) = 1

d(2) = d(1)² + 1 = 1 + 1 = 2

d(3) = d(2)² + 1 = 4 + 1 = 5

d(4) = d(3)² + 1 = 25 + 1 = 26

d(5) = d(4)² + 1 = 676 + 1 = 677

f(1) = 1

f(2) = f(1) + 2×2 - 2 = 1 + 4 - 2 = 3

f(3) = f(2) + 2×3 - 2 = 3 + 6 - 2 = 7

f(4) = f(3) + 2×4 - 2 = 7 + 8 - 2 = 13

f(5) = f(4) + 2×5 - 2 = 13 + 10 - 2 = 21

Answer:

A rectangle is 32ft by 8ft. Ross dilated the rectangle and the dimensions of the image were 80ft by 20ft. What was the scale factor used?

Step-by-step explanation:

A rectangle is 32ft by 8ft. Ross dilated the rectangle and the dimensions of the image were 80ft by 20ft. What was the scale factor used?

Arithmetic average return of the company is 2.57%.Geometric average return of the company is 13%.Variance of the company is 56.Standard deviation of the company is 7.48%.

Given, Returns of the company for the last few years are 5%, 10%, -15%, 20%, -12%, 22%, 8%
Arithmetic Average return:
Arithmetic Average return = (sum of all returns) / (total number of returns)
Arithmetic Average return = (5 + 10 - 15 + 20 - 12 + 22 + 8) / 7= 18 / 7= 2.57
Therefore, the arithmetic average return of the company is 2.57%.
Geometric average return:
Geometric average return = [(1+R1) * (1+R2) * (1+R3) * …….. * (1+Rn)]1/n - 1
Geometric average return = [(1.05) * (1.1) * (0.85) * (1.2) * (0.88) * (1.22) * (1.08)]1/7 - 1= 0.13
Therefore, the geometric average return of the company is 13%.
Variance:
Variance = (sum of (return - mean return)2) / (total number of returns)
Mean return = (5 + 10 - 15 + 20 - 12 + 22 + 8) / 7= 18 / 7= 2.57
Variance = [(5-2.57)2 + (10-2.57)2 + (-15-2.57)2 + (20-2.57)2 + (-12-2.57)2 + (22-2.57)2 + (8-2.57)2] / 7= 392.12 / 7= 56
Therefore, the variance of the company is 56.
Standard Deviation:
Standard Deviation = Square root of Variance
Standard Deviation = √56= 7.48
Therefore, the standard deviation of the company is 7.48%.

Thus, Arithmetic average return of the company is 2.57%.Geometric average return of the company is 13%.Variance of the company is 56.Standard deviation of the company is 7.48%.

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16 is a perfect square

16 = 2 × 2 × 2 × 2

16 = (2 × 2) × (2 × 2)

16 = 4 × 4

Perfect squares numbers whose squares are whole numbers. Square root of 16 gives 4.

Hence, 16 is a perfect square

Answer:

Step-by-step explanation:

18

The total cost before the sales tax was 19.828 pounds.

For a party, Jordan purchased 3.8 pounds of turkey, 2.2 pounds of cheese, and 3.6 pounds of egg salad.

We have to determine the total cost before sales tax.

As per the question, we have prices as:

cost of turkey = 3.95 per pound

cost of egg cheese = 1.3 per pound

cost of egg salad = 0.89 per pound

The total cost of turkey = 3.8 × 3.95  = 15.01 pounds

The total cost of cheese = 2.2 × 1.3 = 2.86 pounds

The total cost of egg salad = 2.2 × 0.89 = 1.958 pounds

The total cost before sales tax = 15.01 + 1.958 +2.86

Apply the addition operation, and we get

The total cost before sales tax = 19.828 pounds

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The question seems to be incomplete the correct question would be:

Jordan bought 3.8 pounds of turkey, 2.2 pounds of cheese, and 3.6 pounds of egg salad for a party. If prices are 3.95 per pound turkey, 1.3 per pound cheese and 0.89 per pound egg salad What was the total cost before sales tax?

Answer:

Yes

Explanation:

-77/11 = -7, and negative 7 is a rational number because the number -7 satisfies the definition of a rational number.

SOLUTION

We will apply the amount formula

Substituting each into the equation, we have

Hence the answer is $10,333.71 to two decimal places

The probability that the experiment results in an outcome less than 40 is 0.25.

To calculate the probability, we need to determine the range of outcomes that are less than 40 out of the total range of 30 to 80. The total range is 80 - 30 = 50. The range of outcomes less than 40 is 40 - 30 = 10.

To find the probability, we divide the range of outcomes less than 40 by the total range:

Probability = (Range of outcomes less than 40) / (Total range)

          = 10 / 50

          = 0.2

Therefore, the probability that the experiment results in an outcome less than 40 is 0.2 or **20%**.

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When comparing two group means, the degree of freedom refers to the number of scores free to vary once the means are known. Correct option is D.

The degree of freedom (df) is the number of independent pieces of information available in a study that may be used to estimate the value of the population parameter in question.

In layman's terms, the degree of freedom is the number of independent pieces of information that can be used to calculate a population parameter estimate in a statistical study. The degree of freedom (df) refers to the number of scores free to vary once the means are known.

This implies that there are a certain number of scores (or values) in the study that can be changed freely without affecting the mean of the study's scores. For instance, if the study's mean score is 75, the degree of freedom is the number of scores that may be adjusted without altering the mean score of 75.

As a result, the degree of freedom represents the number of values that can be varied to get a given statistic, such as the mean.

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Answer:

5

Step-by-step explanation:

[2 3]

[1 4]

The determinant of the above matrix can be obtained as follow :

|2 3|

|1 4|

= (2×4) – (1×3)

= 8 – 3

= 5

Thus, the determinant of the metrix is 5

The equation in slope-intercept form for the line perpendicular to \(\(y=-4x+1\)\) that passes through the point \(\((-7,1)\)\) is \(\(y = \frac{1}{4}x + \frac{5}{4}\)\).

The given equation represents a line with a slope of -4. To find the slope of a line perpendicular to it, we take the negative reciprocal of the slope, which is \(\(\frac{1}{4}\)\). Using the point-slope form of a line, we can substitute the values of the slope \((\(\frac{1}{4}\))\) and the coordinates of the given point \((\((-7,1)\))\) into the equation. The point-slope form is \(\(y - y_1 = m(x - x_1)\),\) where \(\((x_1, y_1)\)\) represents the coordinates of the point and m is the slope. By substituting the values, we get \(\(y - 1 = \frac{1}{4}(x + 7)\)\). To convert this equation into the slope-intercept form \((\(y = mx + b\))\), we simplify it to \(\(y = \frac{1}{4}x + \frac{5}{4}\)\), where \(\(\frac{5}{4}\)\) is the y-intercept. Thus, the equation in slope-intercept form for the line perpendicular to \(\(y = -4x + 1\)\) that passes through the point -7,1 is \(\(y = \frac{1}{4}x + \frac{5}{4}\)\).

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A well-balanced long hair design should consider the proportional relationships between size, shape, texture, and color to create a harmonious and visually pleasing hairstyle that flatters the client's features and personal style.

When planning a well-balanced long hair design, it is important to consider the proportional relationships between size, shape, texture, and color. These four elements work together to create a harmonious and visually pleasing hairstyle.

Size refers to the overall scale of the hairstyle, which can range from small and delicate to large and voluminous. It's important to consider the size of the client's head and face, as well as the desired level of impact.

Shape refers to the outline or silhouette of the hairstyle, which can be angular or rounded, symmetrical or asymmetrical. The shape should be chosen to flatter the client's face shape and features, as well as to create a balanced overall look.

Texture refers to the surface quality of the hair, which can be smooth or rough, sleek or tousled. Texture can be used to add interest and movement to the hairstyle, and should be chosen to complement the client's natural hair texture and the overall design.

Color refers to the hue, saturation, and tone of the hair, which can range from natural to bold and vibrant. Color can be used to enhance the shape and texture of the hairstyle, and should be chosen to flatter the client's skin tone and personal style.

In summary, a well-balanced long hair design should consider the proportional relationships between size, shape, texture, and color to create a harmonious and visually pleasing hairstyle that flatters the client's features and personal style.

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Answer:

Step-by-step explanation:

Lateral surface area of cube = 4a²

4a² = 400

   a² = 400÷4

  a² = 100

 a = √100 = √10*10

a = 10 cm

Total surface area = 6a²

                               = 6 * 10²

                               = 6* 100

                               = 600 cm²

Answer:

A

Step-by-step explanation:

I believe that I did this before.

The measure of the angles of the cyclic quadrilateral are:

Arc PQ = 130

QR = 50°

Arc RS = 70°

∠PSQ = 65°

∠PSB = 65°

∠SBP = 80°

AQS = 30°

PS = 110°

From the figure, the arc PQ is subtended by the angle PAQ.

This means that:

PQ = ∠PAQ

Given that ∠PAQ = 130, it means that:

Arc PQ = 130

The measure of PSQ is then calculated using:

∠PSQ = 0.5 * Arc PQ ----- inscribed angle is half a subtended angle.

This gives: ∠PSQ = 0.5 * 130

∠PSQ = 65°

Hence, the measure of ∠PSQ is 65°

The measure of arc QR

A semicircle measures 180°

Thus:

QR + PQ = 180°

Thus, we get:

QR = 180° - PQ

Substitute 130° for PQ

QR = 180° - 130°

QR = 50°

Hence, the measure of QR is 50°

The measure of arc RS

The measure of arc RS is then calculated using:

∠RPS = 0.5 * Arc RS ----- inscribed angle is half a subtended angle.

Where ∠RPS = 35

So, we have:

35 = 0.5 * Arc RS

Multiply both sides by 2

Arc RS = 70°

The measure of angle AQS

In (a), we have:

∠PSQ = 65°

This means that:

∠PSQ = ∠PSB = 65°

So, we have:

∠PSB = 65°

Next, calculate SBP using:

∠SBP + ∠BPS + ∠PSB = 180° ---- sum of angles in a triangle.

So, we have:

∠SBP + 35 + 65 = 180°

∠SBP + 100 = 180

∠SBP = 80°

The measure of AQS is then calculated using:

AQS = AQB = 180 - (180 - SBP) - (180 - PAQ)

AQS = 180 - (180 - 80) - (180 - 130)

AQS = 30°

The measure of arc PS

A semicircle measures 180°

This means that:

PS + RS = 180°

This gives

PS = 180 - RS

RS = 70

Thus:

PS = 180 - 70

PS = 110°

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For the given scenario, the distance traveled by the first car after t seconds is 10t^2+50t meters, while the distance traveled by the second car is not provided. Therefore, the exact distance between the two cars cannot be determined without additional information.

To find the distance between the two cars, we need to know the distance traveled by the second car after t seconds. Without this information, we cannot determine the distance between the two cars at any given time. However, we can make some general observations about the situation.

If the second car travels a greater distance than the first car, the distance between the two cars would increase over time. Conversely, if the second car travels a shorter distance than the first car, the distance between them would decrease over time. Additionally, if the second car travels the same distance as the first car, the distance between the two cars would remain constant.

In conclusion, without knowing the distance traveled by the second car, we cannot determine the exact distance between the two cars at any given time. However, we can make some general observations about the situation based on the relative distances traveled by the two cars.

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Answer:

∠ ABC = 90°

Step-by-step explanation:

∠ ABC is the angle on the circle subtended by the diameter AC

it is the angle in a semicircle and is 90°

Danielle viewed 7 movies on demand, thus you must divide her 35 dollars among them. So the monthly charge for Danielle's cable bill is $5.

Danielle pays a monthly charge of $69 for her cable bill.

She also pays a fee every time she watches a movie on demand.

Last month Danielle watched 7 movies on demand, and her total monthly bill was $104.

We have to find the monthly charge for Danielle's cable bill to choose.

Remove the monthly fee of 69 dollars for cable service from the total of 104 dollars, then check the statement to see that there is still a mystifying 35 dollars on it.

Danielle viewed 7 movies on demand, thus you must divide her 35 dollars among them, giving you the result of $5 per on-demand movie.

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A researcher's results should be considered fraudulent if data were changed in order to support the hypothesis. This is a serious ethical violation and goes against the scientific method. Overall, it is important for researchers to adhere to ethical standards and maintain the integrity of their research.

Explanation:

A researcher's results should be considered fraudulent if data were changed in order to support the hypothesis. This is a serious ethical violation and goes against the scientific method. Additionally, if animals were used while conducting experiments, the researcher should have followed ethical guidelines and obtained proper approval and care for the animals. If a survey was used to collect data, the researcher should have ensured the survey was properly designed and administered to avoid any biases or errors. Finally, if participants were not debriefed after completion of the study, this could be seen as unethical and potentially harmful to their well-being. Overall, it is important for researchers to adhere to ethical standards and maintain the integrity of their research.

The scientific method requires researchers to conduct experiments in a transparent and objective manner. This means that the researcher should design experiments to test hypotheses, collect data systematically, and analyze data objectively. Any manipulation of data to support a hypothesis undermines the scientific method and is considered unethical. Researchers who intentionally manipulate data can be considered fraudulent and may face disciplinary action.

If animals were used in the experiment, the researcher should have followed ethical guidelines and obtained proper approval and care for the animals. Ethical guidelines ensure that animals are treated humanely, minimize their pain and discomfort, and maximize their welfare. Researchers who violate these guidelines can be considered fraudulent and may face disciplinary action.

If a survey was used to collect data, the researcher should have ensured that the survey was properly designed and administered to avoid any biases or errors. Surveys can be susceptible to various sources of error, including sampling errors, measurement errors, and non-response bias. Researchers who fail to address these sources of error can produce biased or invalid results, which can be considered fraudulent.

Finally, if participants were not debriefed after completion of the study, this could be seen as unethical and potentially harmful to their well-being. Debriefing allows participants to understand the purpose of the study, ask questions, and voice any concerns they may have. Participants who are not debriefed may feel deceived or harmed by the study, which can damage their trust in research and researchers.

In summary, researchers must adhere to ethical standards and maintain the integrity of their research. This includes avoiding data manipulation, following ethical guidelines for animal welfare, ensuring that surveys are properly designed and administered, and debriefing participants after completion of the study. Failure to do so can result in fraudulent research and harm to participants, animals, and the scientific community as a whole.

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Answer:

4r^2 - 36 s^2

Step-by-step explanation:

She will take 5 days 45 litre of jam.

Total jam jarred by riley in 4 days is 36 Litres.

Using unitary method

Jam jarred Per day = total volume of jam/ number of days

Putting the values accordingly

Jam jarred per day = 36/4

Jam jarred per day = 9 Litres.

If riley want to jar a total of 46 litre of jam.

Let us assume that she Jar of 45 l of jam in X days.

So we can write

9X = 45

Solving further

X = 5 days.

So she will need a total of 5 days to jar 45 litres of jam.

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Answer: 8

Step-by-step explanation: You can test 234 by multiplying it by random numbers like i did on a calculator and from there i tested 8 and it fit 1874 so i knew that was the answer

Answer:

Just add 8.75 + 8.75 + 4.2 + 4.2

Step-by-step explanation:

Add all four sides

25.9.

Add all sides because if you find perimeter you just need to add all sides.

Answer:

Its probably going to be B.

Step-by-step explanation: