4. Create a set of 5 positive numbers (repeats allowed)
that have a median of 20 and a mean of 10. (or explain
why it can't be done)

The equation's value of x is -50. To solve for x, we added 2 to both sides of -2/5x - 2 = 18. Then, we divided both sides by -2/5 or multiplied by -5/2 to get -2/5x = 20.

Answer: its -50

Step-by-step explanation:  the negatives cancel out. 50 divided by 5 is 10, so 1/5 of 50 is 10 and 2/5 of 50 is 20. then subtract 2.

\(3x + 20 = (5 \times 1095) - 14 \\ 3x + 20 = 5475 - 14 \\ 3x = 5461 - 20 \\ 3x = 5441 \\ x = \frac{5441}{3} \)

Answer:

21 hours

Step-by-step explanation:

84,000 = 4,000x, x = hours

84,000 ÷ 4,000 = x

x = 21

good luck, i hope this helps :)

Answer:

84000/4000=21 hours

Step-by-step explanation:

Answer (25-30 words): In point 7 and 8, the concept of surveys is repeated because research techniques refer to the overall approach, while data collection specifically focuses on the method used to gather data.

In research methodology, point 7 refers to the research techniques employed, which in this case is surveys. Surveys are a common method for gathering data in quantitative research. Point 8, on the other hand, specifies the data collection process, which again involves the use of surveys. While it may seem repetitive to mention surveys twice, it is important to differentiate between the broader research technique (point 7) and the specific method used to collect data (point 8).

The research technique, surveys, encompasses the overall approach of using questionnaires or interviews to collect data from respondents. It represents the methodology chosen to gather information. On the other hand, data collection focuses on the actual process of administering the surveys and collecting responses from the target population.

By including both points, the outline or concept map reflects the distinction between the research technique (surveys) and the specific step of data collection using surveys. This ensures clarity and precision in describing the methodology.

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Answer:

.471 in2

Step-by-step explanation:

Use the formula for total surface area of a cylinder: 2*pi*r^2(top and bottom circle) + 2*pi*r*h (the surface around)

Answer: I hope this helps

Step-by-step explanation: Answer: It is linear

Basically just turn it into slope intercept form which is y=mx+b and if it doesn't have an exponent it is linear.

and also remember it is in standard form in the question which is Ax+By =C

Answer:

4a ^2, 5a

Constants- -3

Coefficients- 4, -5

Second Expression:

Terms- 7(3x+5), 11y

Constants- 7, 5

Coefficients- -3, 11

For the first expression;

For the Second Expression:

The terms in an expression with just numeric components that have a fixed value are known as constants. The number next to the variable in the phrase is the variable's coefficient.

In a polynomial, series, or expression, a coefficient is a multiplicative factor that can be any expression but is typically a number. They may also be referred to as parameters if the coefficients are variables in and of themselves.

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a) The level of significance, denoted as α, is 0.05, which means we are willing to accept a 5% chance of making a Type I error (rejecting the null hypothesis when it is true).

The null hypothesis, denoted as H0, states that Gentle Ben's overall average glucose level is not higher than 85 mg/100ml. The alternate hypothesis, denoted as Ha, suggests that Gentle Ben's overall average glucose level is higher than 85 mg/100ml. In this case, we will use a right-tailed test because we are interested in determining if the average glucose level is higher.

b) The sampling distribution we will use is the t-distribution. Since the population standard deviation (σ) is unknown, we use the sample standard deviation (s) to estimate it. With a small sample size (n = 8), the t-distribution provides a better approximation for the sampling distribution of the sample mean.

c) To find the P-value, we need to calculate the test statistic. The formula for the t-test statistic is:

t = (x - μ) / (s / √n)

where x is the sample mean, μ is the hypothesized population mean, s is the sample standard deviation, and n is the sample size. Plugging in the values, we have:

t = (93.8 - 85) / (12.5 / √8) ≈ 1.785

Next, we find the P-value by comparing the t-value to the t-distribution with n - 1 degrees of freedom. Looking up the t-value in the t-table or using statistical software, we find that the P-value is approximately 0.052.

d) Since the P-value (0.052) is greater than the chosen significance level (0.05), we fail to reject the null hypothesis. The data do not provide sufficient evidence to conclude that Gentle Ben's overall average glucose level is higher than 85 mg/100ml. The data are not statistically significant at the α = 0.05 level.

e) In the context of the application, we cannot conclude that Gentle Ben's overall average glucose level is higher than the recommended level of 85 mg/100ml based on the available data. Further investigation or a larger sample size may be necessary to draw more definitive conclusions about Gentle Ben's glucose levels.

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Answer:

I have super sensitive skin and one time I used fancy lotion and I broke out completely. It was embarrassing because you could see dots all over my face.

Step-by-step explanation:

Answer:

10. 32 & 37

11. 3 & 4

(っ◔◡◔)っ ♥ Hope It Helps, Please Consider giving Brainliest ♥

(P.S. if you need an explanation just ask in comments)

To find the probability of accepting a lot with a defect rate of 4% using an acceptance sampling plan with n = 27 and c = 0, we need to calculate the binomial probability of having zero defects in a sample of 27 items.

The probability of accepting a lot is equal to the probability of having zero defects, which can be calculated using the binomial probability formula. The formula is P(X = k) = C(n, k) * p^k * (1 - p)^(n - k), where P(X = k) is the probability of getting k successes, n is the sample size, p is the probability of success (defect rate), and C(n, k) is the binomial coefficient.

In this case, we want to find P(X = 0) where n = 27 and p = 0.04 (4% defect rate). Substituting these values into the binomial probability formula and calculating it will give us the desired probability of accepting the lot with zero defects.

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Answer:

A line graph

I think

Step-by-step explanation:

Answer:

Plots that can detect violations in regression assumptions, while response plots help analyse the relationship between the response variable and predictors are Residual plots and scatterplot matrix.

Step-by-step explanation:

There are several graphical plots commonly used to detect violations of regression model assumptions and analyze estimated regression models. Here are a few examples:

Residual plot: A residual plot shows the difference between the observed values of the response variable and the predicted values from the regression model. Patterns in the residuals, such as nonlinearity, heteroscedasticity (unequal variances), or outliers, can indicate violations of assumptions.

Response plot: This plot examines the relationship between the response variable and one of the predictor variables while holding other predictors constant. It helps identify nonlinearity or other issues in the relationship between the response and predictors.

Scatterplot matrix: A scatterplot matrix displays scatterplots between pairs of predictor variables. It can help detect issues like perfect multicollinearity, which occurs when two or more predictors are highly correlated, leading to problems in estimating the regression coefficients.

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To create a valid matched pair test, the researcher should consider random assignment, similarity, blinding, sample size, and duration.

To create a valid matched pair test, the researcher should consider the following:

Random assignment: The pairs should be randomly assigned to the treatment and control groups to avoid bias.

Similarity: The pairs should be matched based on similar characteristics that could affect the outcome, such as age, gender, prior algebra performance, and socioeconomic status.

Blinding: The researcher should ensure that the students do not know which group they are assigned to, and the person administering the test should also be blinded to the group assignments.

Sample size: The sample size should be large enough to provide sufficient statistical power to detect a meaningful difference between the two groups.

Duration: The length of the study should be sufficient to allow for meaningful differences to occur between the groups, but not so long that other factors could interfere with the outcome.

By considering these factors, the researcher can create two groups that are well-matched and comparable, allowing for a valid matched pair test to be conducted.

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Answer:yes they are considered real numbers

Step-by-step explanation:

1) Reflecting over y=x means \((x, y) \longrightarrow (y,x)\). So, the coordinates of the image are:

\(V(-3, 0) \longrightarrow V'(0,-3)\\\\W(-1,0) \longrightarrow W'(0, -1)\\\\U(-2,-5) \longrightarrow U'(-5,-2)\\\\X(3,-3) \longrightarrow X'(-3, 3)\)

2) Rotating 90 degrees counterclockwise about the origin means \((x,y) \longrightarrow (-y,x)\), so the vertices of the image are:

\(W(0,-1) \longrightarrow W'(1,0)\\\\X(3,-1) \longrightarrow X'(1, 3)\\\\V(0,-3) \longrightarrow V'(3,0)\\\\Y(1, -5) \longrightarrow Y'(5, 1)\)

3) The vertices of the image are:

\(C(2,0) \longrightarrow C'(-2, -2)\\\\D(2, 5) \longrightarrow D'(-2, 3)\\\\E(5,4) \longrightarrow E'(1, 2)\)

The function that shows the same output values, or y-values, for each input value, or x-value is a proportional relationship with a constant of 1.

Hence the definition of the function is of:

y = x.

A proportional relationship is a linear function with an intercept of zero modeled as follows:

y = kx.

In which k is the constant of proportionality.

The output is the same as the input when:

y = x.

Hence this will be true for the entire domain of a function when k = 1, that is, when the graph of the function shows a proportional relationship with a constant of 1.

The graph of the proportional relationship y = x is given by the image presented at the end of the answer.

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The fraction of the occupied apartments is 9/10.

In mathematics, a fraction is a symbol for a rational number.

Let a and b be two numbers, then their fraction can be represented as a/b.

Given that,

Total apartments in the building = 200.

Also,

The number of apartments leased by realtor = 180

The fraction of the apartments which is occupied by realtor

= number of apartments leased /Total apartments

= 180 / 200

= 18 / 20

= 9 / 10

The required fraction is 9/10, implies that from each 10 apartments, 9 apartments are occupied.

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Answer:

-28*F, hope this helps!

Answer:

-28 F

Step-by-step explanation:

please give the other guy brainliest :))))

Answer:

Step-by-step explanation:

p(x)=7x+20

p=7x/x + 20/x

answer   p=7+20/x

I hope its helpful.

We have to convert a sentence into an inequality. the sentence is the following

This tells us two things, that we subtract 5 from "w" and that this must be less than or equal to 16

In conclusion, the answer is:

Answer:

\(t(x) = 4x - 2 \\ c(x) = x + 9 \\ c(t(x)) = (4x - 2) + 9 \\ = (4(2) - 2) + 9 \\ = 8 - 2 + 9 \\ = 6 + 9 = 15\)

If the distribution of the variable upon which the mean was derived is highly skewed to the right, it may be appropriate to use the t-test if the sample size is large enough.

When conducting research, the t-test is typically used to compare the means of two groups. One of the key assumptions of the t-test is that the population from which the sample was drawn follows a normal distribution.

However, if the distribution of the variable upon which the mean was derived is highly skewed to the right, it may not meet the normality assumption.

In this case, it is appropriate to use the t-test if the sample size is large enough. The t-test is based on the central limit theorem, which states that the sample mean tends to follow a normal distribution as the sample size increases, even if the population distribution is not normal. For large sample sizes (typically n > 30), the t-test is generally considered to be robust to violations of the normality assumption.

However, if the sample size is small, the t-test may not be appropriate, even if the sample mean follows a normal distribution. In this case, alternative statistical tests may be more appropriate. For example, the Wilcoxon rank-sum test can be used to compare the means of two groups when the normality assumption is not met.

In conclusion, if the sample size is small, alternative statistical tests may be more appropriate.

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Answer:

jakdjkandnxnanbeiwiwifo nslfjiakwkd r. kalfdp

The given argument is invalid. It says that if one person has more gray hair in their beard than another person, then they have a higher percentage of gray hair in their beard.

The argument is invalid because it is possible for one person to have a higher percentage of gray hair in their beard but a lower number of gray hairs in total.One possible counterexample by model is:Suppose Plato has 200 hairs in his beard and 50 of them are gray. So, 1/4 of his hairs are gray. Now, let's suppose Aristotle has 400 hairs in his beard, and 300 of them are gray. So, 3/4 of his hairs are gray. Even though Plato has fewer gray hairs than Aristotle, his percentage of gray hairs is more significant (1/4) than Aristotle's (3/4).

Therefore, the given argument is invalid since Aristotle's beard contains more gray hairs in quantity, but Plato has a higher percentage of gray hair in his beard.

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Answer:

=3 6/12 < 1 8/12

Step-by-step explanation:

ANSWER

(-7, -8)

EXPLANATION

To locate the pair of numbers that add up to -15, look down your p+q column. This equals (p, q) (-7, -8).

The equation shows the relationship between y, the total number of pencils remaining in the case, and x, the number of boxes of pencils is y = 10x - 8.

An algebraic equation is a mathematical expression that contains one or more variables and is set equal to a constant or the result of a mathematical operation. The variables in the equation are typically represented by letters, such as x or y, and the equation can be solved for a specific value of the variable(s) by using mathematical operations and/or by isolating the variable(s) on one side of the equation. Algebraic equations can be used to model and solve a wide variety of real-world problems, such as calculating distances, rates, and amounts.

Let x be the number of boxes of pencils

and y be the total number of pencils remaining in the case

If there are 10 pencils in each box and 8 pencils are sharpened and used by students, then we can write the equation as:

y = 10x - 8

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Answer:

square root of 4761 = 69

Step-by-step explanation: