b. Check if each of these points is a solution to
the inequality 2y - x> 1:
(0, 2) (8,1/2) (-6, 3) (-7,-3)
8,
c. Shade the region that represents the solution set to the inequality
2y - x > 1.
d. Are the points on the line included in the solution set? Explain how you
know.

Answer:

The answer is 7 meters

Step-by-step explanation:

Its 7 meters because if you divide the area by the width you would get the length (49 divided by 7 = 7)

If a scatterplot of standardized, bivariate data displays data that are mostly lying in the upper left and lower right-hand quadrants, then the Pearson correlation is typically going to be negative. The above statement is false.

Bivariate data involves studying and comparing two separate variables. For example, a researcher may record how long it takes people to complete a crossword puzzle while measuring the stress levels of the participants. In this example, the two variables that the researcher is examining are time and stress.

Scatterplots display these bivariate data sets and provide a visual representation of the relationship between variables. In a scatterplot, each point represents a paired measurement of two variables for a specific subject, and each subject is represented by one point on the scatterplot.

When the points on a scatterplot graph produce a lower-left-to-upper-right pattern, we say that there is a positive correlation between the two variables. This pattern means that when the score of one observation is high, we expect the score of the other observation to be high as well, and vice versa.

When the points on a scatterplot graph produce a upper-left-to-lower-right pattern, we say that there is a negative correlation between the two variables. This pattern means that when the score of one observation is high, we expect the score of the other observation to be low, and vice versa.

In statistics, the Pearson correlation coefficient ― also known as Pearson's r, the Pearson product-moment correlation coefficient (PPMCC), the bivariate correlation or colloquially simply as the correlation coefficient ― is a measure of linear correlation between two sets of data. It is the ratio between the covariance of two variables and the product of their standard deviations; thus, it is essentially a normalized measurement of the covariance, such that the result always has a value between −1 and 1. As with covariance itself, the measure can only reflect a linear correlation of variables, and ignores many other types of relationships or correlations. As a simple example, one would expect the age and height of a sample of teenagers from a high school to have a Pearson correlation coefficient significantly greater than 0, but less than 1 (as 1 would represent an unrealistically perfect correlation).

The Pearson correlation method is the most common method to use for numerical variables; it assigns a value between − 1 and 1, where 0 is no correlation, 1 is total positive correlation, and − 1 is total negative correlation. This is interpreted as follows: a correlation value of 0.7 between two variables would indicate that a significant and positive relationship exists between the two. A positive correlation signifies that if variable A goes up, then B will also go up, whereas if the value of the correlation is negative, then if A increases, B decreases.

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Using the simplex method, the maximum value of Z=5A+4B is found to be 19.2 when A=3.6 and B=1.2. The calculations can be confirmed by using any software that solves linear programming problems.

To solve the given linear programming problem using the simplex method, we start by converting the problem into standard form. We introduce slack variables to convert the inequalities into equations.The initial tableau is as follows:

      | A | B | S1 | S2 | S3 | S4 |   RHS

------------------------------------------

 Z    | -5 | -4 | 0  | 0  | 0  | 0  |    0

------------------------------------------

 S1   |  6 |  4 | 1  | 0  | 0  | 0  |   24

 S2   |  1 |  2 | 0  | 1  | 0  | 0  |    6

 S3   | -1 |  1 | 0  | 0  | 1  | 0  |    1

 S4   |  0 |  1 | 0  | 0  | 0  | 1  |    2

We perform the simplex iterations until the optimal solution is reached. After applying the simplex method, the final tableau is obtained as follows:

      |  A  |  B  |  S1  |  S2  |  S3  |  S4  |   RHS

------------------------------------------------------

 Z    |  0  | 1.8 | 0.2  | -1   | -0.4 |  0.4 | 19.2

------------------------------------------------------

 S1   |  0  |  0  |  0   | 1.5  | -1   |  1   |  3

 S2   |  1  |  0  | -0.5 |  0.5 |  0.5 | -0.5 | 1.5

 A    |  1  |  0  | 0.5  | -0.5 | -0.5 |  0.5 |  0.5

 S4   |  0  |  0  |  1   | -1   | -1   |  1   |  1

From the final tableau, we can see that the maximum value of Z is 19.2 when A=3.6 and B=1.2. This solution satisfies all the constraints of the problem. The calculations can be verified using any software that solves linear programming problems, which should yield the same optimal solution.

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Step-by-step explanation:

if there is nothing missing, we have

x + 25/-8 = -6

in order to compare or add or subtract fractions, we need to bring them all to the same denominator (bottom part).

remember, integer numbers are fractions too. like here

-6 = -6/1

25/-8 = -25/8

so, how can we bring -6/1 to .../8 ?

by multiplying 1 by 8.

but we cannot multiply only the denominator by 8. otherwise we would suddenly have

-6/8

and is -6/8 = -6/1 ? no, certainly not.

to keep the original value of the fraction we have to do the same multiplication also with the numerator (top part).

so, we actually do

-6/1 × 8/8 = -48/8

with this little trick we have now .../8 to operate with, and our transformed fraction has still the same value

-6/1 = -48/8 indeed.

so, we have

x + -25/8 = -48/8

x - 25/8 = -48/8

x = -48/8 + 25/8 = -23/8

Answer:

1 pound for $3.75

if you divide $15.63 by 4, you would get 3.9075, which is more than $3.75

Step-by-step explanation:

Step 1:

Write the parent coordinates

(4 , 6)

Step 2

The point can bo on the positive y-axis or on the negative y-axis.

New coordinates

( 4 + 5, 6 + 5)

= (9 , 11)

Or

( 4 - 5, 6 - 5)

= (-1 , 1)

Final answer

Smaller y-value = 1

Larger y-value = 11

A store sold 120 units of good A for $4 each and they sold 340 units of good B for $5 each. The given value of sales was $ 2,180.

To find out the value of sales when a store sold 120 units of good A for $4 each and 340 units of good B for $5 each, we have to calculate the total cost of good A and good B sold respectively and add them together.

Value of sales = Total cost of good A + Total cost of good B Total cost of good A

= Number of units of good A sold x Cost of each unit of good A Total cost of good A

= 120 x $4Total cost of good

A = $480

Total cost of good B = Number of units of good B sold x Cost of each unit of good B Total cost of good

B = 340 x $5

Total cost of good B = $1,700

Therefore,Value of sales = Total cost of good A + Total cost of good B Value of sales = $480 + $1,700

Value of sales = $2,180

Therefore, the value of sales was $2,180.

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The tangent function has vertical asymptotes because there are values of x for which cos(x) = 0, and thus the tangent function will be undefined for these values.

The vertical asymptotes are the values of x which are outside the domain, which in a fraction are the zeroes of the denominator.

Considering the sine and the cosine of an angle, the tangent function is given by:

tan(x) = sin(x)/cos(x).

Thus, when cos(x) = 0, tan(x) has vertical asymptotes.

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The z value is calculated by using the equation  (x- μ)/ σ/ √n. Here the true value lies between the confidence interval. So null hypothesis is accepted.

The data which is given are, mean of the sample (x) = 100.6 psi

Standard deviation, σ = 2 psi

Number of specimens tested, n = 9

Let us consider the mean breaking point of yarn of the population = μ

Since it is said that the mean breaking point should at least be 100,

Null hypothesis, H₀ , μ ≥ 100

Alternate hypothesis, H₁  μ < 100

a. Z value = (x- μ)/ σ/ √n =  \(\frac{100.6-100}{\frac{2}{\sqrt{9}} }\) = 0.89

So P ( z ≥ 0.89) = 0.1711

If significance level,α is greater than P(z ≥ 0.89), we cannot reject the null hypothesis.

b. If significance level is 0.05

Critical value for the breaking point , (x-μ)/σ/√n = 1.64

        \(\frac{x- 100}{\frac{2}{\sqrt{9} } }\)    = 1.64

x = 101.093

Z value =   \(\frac{101.09-102}{\frac{2}{\sqrt{9} } }\)  =  -1.378

P(z< -1.378) = 0.0885

Probability of committing type 2 error = 8.85%

c. Required confidence interval level =  \(x-z_{0.05}(\frac{2}{\sqrt{n} })\)  = \(102-1.64(\frac{2}{\sqrt{9} } )\) = 102 - (1.64× 0.67) = 100.9

d. If true value lies between the two confidence interval, null hypothesis is accepted. Here 100.9 < 102 < α

So null hypothesis is accepted.

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The complete question is

The mean breaking strength of yarn used in manufacturing drapery material is required to be at least 100 psi. Past experience has indicated that the standard deviation of breaking strength is 2 psi. A random sample of nine specimens is tested, and the average breaking strength is found to be 100.6 psi.

a) Should the fiber be judged acceptable? Use the P-value approach.

b) What is the probability of not rejecting the null hypothesis at

α=0.05

if the fiber has a true mean breaking strength of 102 psi?

c) Find a 95% one-sided lower CI on the true mean breaking strength.

d) Use the CI found in part (d) to test the hypothesis.

The percent markup of a department, if they sell 300 shirts at a cost of $9 each is 50%

According to the question, we learn that a department store buys 300 shirts at a cost of $1,800 and sells them for $9 each. This means :

The selling price of 300 shirts = 300 × $9

The selling price of 300 shirts = $2700

Selling price > cost price i.e., 2700 > 1800

when selling price is greater than cost price it means department store made a profit.

Profit = selling price - cost price

Profit = 2700 - 1800 = $900

Profit percentage = profit/ cost price × 100

Profit % =\(\frac{900}{1800} \times 100\)

Profit % = 50%

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Answer:

15 maybe

sorry if it is wrong

Answer: 1 inch button is 5/8 times longer than 3/8 inch buttons.

I hope this helps ;)

A customer would  be charged $ 52 for an international phone call that started at 9:35 p.m. and ended at 11:15 p.m. the same day.

Charge for first 5 charged = $ 4.50

Charge for additional time = $ 0.50 per minute

Starting time = 9:35 p.m.

End time = 11:15 p.m.

Total minutes = 100 minutes

Total charge = 4.50 + (95 x 0.50)

                  = 4.50 + 47.50

                  = 52.00

Hence, a customer would  be charged $ 52 for an international phone call that started at 9:35 p.m. and ended at 11:15 p.m. the same day i.e. for 100 minutes.

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Answer:

he was incorrect about both slope and y intercept

the correct is

1/4x+1

Hope This Helps!!!

\( \qquad \quad\huge \bf༆ Answer ༄\)

The Correct choice is C

The given term " 7 - 13 " can also be written as :

\(\qquad \sf  \dashrightarrow \: 7 + ( - 13)\)

Answer:

C. 7 + (-13)

Step-by-step explanation:

If you subtract 7 - 13, you get -5. We have to find an equation that equals -5 as well.

A. doesn't work because 13 - 7 equals 5.

B. doesn't work because -13 + (-7) equals -20.

D. doesn't work because -7 + 13 equals 5.

C. does work because 7+ (-13) equals -5.

REMEMBER - adding a negative number is the same as subtracting a number.

Hope this helps :) have a good day

The value of the expression according to the order of operations is -11. Thus option D is correct.

According to the statement

We have to find that the value of the given expression.

So, For this purpose, we know that the

The order of operations is a rule that tells the correct sequence of steps for evaluating a math expression.

From the given information:

The expression are :

(-2)-3-6

Now solve it with the order then

(-2)-3-6 = (-2)-3-6

(-2)-3-6 = -2-3-6

Now add the first two terms

then

(-2)-3-6 = -5-6

Now, Add next two terms

Then

(-2)-3-6 = -11.

The value becomes -11.

So, The value of the expression according to the order of operations is -11. Thus option D is correct.

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Complete factorization:

(x -6) (x -6) or (x -6)²

Given :  x² − 12x + 36

Here,

Since the leading co- efficient for this equation is 1, we take 36 and find 2 factors that 36 has, and also adds up to -12.

That would be  -6, and -6 because -6 + -6 = -12

Further,

-6 x -6 = 36 , therefore -6 and -6 are the numbers we are looking for.

Hence after factorization,

(x -6) (x -6) or (x -6)²

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A meter is equal to 100 centimeters; therefore, 9 meters are equal to 9*100=900cm.

9 meters is the same length as 900 centimeters.

Answer: x+8

Step-by-step explanation:

Answer:

-8x + 18

Step-by-step explanation:

simplified is -8x + 18

\(-8x + 18\)

that is the answer

As a result, the angle CBF has a 61 degree value.

When two consecutive lines or beams intersect at a single terminus, an angle is created. The apex of an arc is the location where two points come together.

Since Ray BF splits angle BCD into two equal portions because it is an angle bisector, the measures of angle CBF and angle DBF are the same. Consequently, we can write:

3z + 7 = 5z - 29

Simplifying and solving for z:

2z = 36

z = 18

Now we can substitute z = 18 into the expression for the measure of angle CBF:

3z + 7 = 3(18) + 7 = 61

Therefore, the measure of angle CBF is 61 degrees.

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Answer:Videos with 100,000 views can rake in between $500 (£384) and $1,000 (£770), according to You Tuber Natalie Barb

Step-by-step explanation:

Answer:

2.3 hours

Step-by-step explanation:

161 divided by 70 = 2.3

if Carlos drives 161 kilometers at a speed of 70 kilometers per hour then it takes 2.3 hours to drive.

Speed is the time rate at which an object is moving along a path,

Given,

Carlos drives 161 kilometers at a speed of 70 kilometers per hour

From the given data distance=161 kilometers

Distance is one hundred sixty one kilometers

Speed=70km/hr.

Speed is seventy kilometer per hour.

Speed=Distance/time

70=161/time

Now cross multiply

time=161/70

Time=2.3hrs

Hence, if Carlos drives 161 kilometers at a speed of 70 kilometers per hour then it takes 2.3 hours to drive.

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The length of the unknown side (x) is 12.81 units.

To find the side length of the right triangle,  use the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides.

Let's denote the given side lengths as follows:

The length of one side: 10

The length of another side: 8

The length of the unknown side: x

According to the Pythagorean theorem,

10² + 8²= x²

Simplifying this equation:

100 + 64 = x²

164 = x²

To find the value of x, take the square root of both sides:

x = √164

Using a calculator or rounding to the nearest hundredth, we find:

x ≈ 12.81

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Answer:

in what? if you meant 8 hours in 24 hours than 3 times

Step-by-step explanation:

Answer:

The answer is 3 times.

Step-by-step explanation:

\(since \: 8 \times 3 =24

then \: you \: can \: fit \: 8 \: hours \: 3 \: times \: in \: 24 \: hours.\)

Answer: 32 ft²

Step-by-step explanation:

The area of a trapezoid is calculable using the formula:

= (a + b)/ 2 * height

Where a and b are the base lengths.

= (1 + 7) / 2 * 8

= 8/2 * 8

= 4 * 8

= 32 ft²

Answer:

C D J

Step-by-step explanation:

the 2nd and 3rd quadrants have values of x that are less than 0.

Answer:

The answer to the question provided is possibly 2.

Step-by-step explanation:

\( \: \: \: \: \: \: \: \: \: \: \: \: 3y + 77 = 2y + 79 \\ \frac{ - 2y \: \: \: \: \: \: = - 2y}{1y + 77 = 79} \\ \frac{ \: \: \: \: \: \: \: \: - 77 = - 77}{ \frac{1y}{1} = \frac{2}{1} } \\ \\ y = 2\)

The letters F, I, T, T, or Frequency, Intensity, Time, and Type, outline the essential elements, or training recommendations, for a successful exercise program.

Regularly engage in some sort of physical activity.

Intensity - Pick an action that is at least moderately intense, and throughout the week, attempt to add a couple more energetic activities. A vigorous exercise causes you to breathe quickly and perspire heavily.

Time (length) - Schedule at least 60 minutes of daily activity in total.

Type - The activity can take many different forms, including games, individual sports, leisure pursuits, family activities, physical hobbies, and recreational and commuting walking and biking.

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Step-by-step explanation:

the ratio of 1/18 simply means that 1 inch in the drawing represents 18 inches in reality.

so, the real flag is therefore

2×18 = 36 inches long and 1×18 = 18 inches wide (or high).

the area of the actual flag is therefore

36 × 18 = 648 in²