PLEASE HELP!!! 20 points!!!

In the diagram below, M is the midpoint of KL.

Solve for the value of x.

Answer:

I'm not reallu sure.. but 5

Step-by-step explanation:

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Answer: The first or the second point (- 2, - 3) or (- 2, 1)

Step-by-step explanation:

Ok, a relation (x, y) is a function only if, for each value x in the domain, we have only one value y in the range such that:

f(x) = y.

Here we have the pairs:

(- 2, - 3), (- 2, 1), (- 4, 3), (0, 4), (1, 1), and (2, 3).

Here, for the value x = -2, we have two different values of y.

y = 1 and y = 3.

So this is not a function, then if we want that this relation becomes a function, we must remove the first or the second point.

Answer:

I think B

Step-by-step explanation:

The simplified fraction expression results into \(\frac{1}{9}\).

What is fraction?

A number that is stated mathematically as a quotient, where the numerator and denominator are divided. Both are integers in a simple fraction. A fraction appears in the numerator or denominator of a complex fraction. The numerator of a proper fraction is less than the denominator.

A number that represents a rational number is called a common fraction. The three main sorts of fractions are as follows. Proper fractions, incorrect fractions, and mixed fractions are these three types.

Given,

Expression = \(\frac{3^{-6}}{3^{-4}}\)

                   = \(3^{-6-(-4)}\)

                   = \(3^{-6+4}\)

                   = \(3^{-2}\)

                   = \(\frac{1}{3^2}\)

                   = \(\frac{1}{9}\)

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Answer:

Step-by-step explanation:

cross multiply

Answer:

19% chance he pulled out aeio and u

The appropriate test in this scenario is a one-sample t-test for a population mean.

Therefore, the appropriate test in this scenario is a one-sample t-test for a population mean.

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Answer:what

Step-by-step explanation:what does this mean

The probability of selecting a defective roofing sheet from the finished products of ABC is 2.45%. If a randomly selected defective sheet is found, the probability that it was made by machine B3 is approximately 54.55%.

To determine the probability of selecting a defective roofing sheet from the finished products of ABC, we need to calculate the weighted average of the defect rates for each machine.

The weighted average defect rate is calculated by multiplying the defect rate of each machine by its corresponding proportion of production and summing the products.

Weighted Average Defect Rate = (0.02 * 0.30) + (0.03 * 0.45) + (0.02 * 0.25)

                            = 0.006 + 0.0135 + 0.005

                            = 0.0245

Therefore, the probability of selecting a defective roofing sheet from the finished products of ABC is 2.45%.

To calculate the probability that a randomly selected defective sheet was made by machine B3, we need to consider the proportion of defective sheets contributed by B3 out of the total defective sheets.

The proportion of defective sheets from B3 = (0.02 * 0.30) / 0.0245

                                            = 0.006 / 0.0245

                                            ≈ 0.245

The probability that a defective sheet was made by machine B3 can be obtained by dividing the proportion of defective sheets from B3 by the overall probability of selecting a defective sheet.

Probability of sheet made by B3 = (0.245 / 0.0245) * 100

                              ≈ 54.55%

Therefore, if a randomly selected defective roofing sheet is found, the probability that it was made by machine B3 is approximately 54.55%.

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Ratio scale is an actual number of purchases in a certain time period, dollars spent, miles traveled, number of children in the household, or years of college education.

The ratio scale is the highest form of measurement and has all the properties of the nominal, ordinal, and interval scales.

It has an absolute zero point and measurements that can be mathematically operated on.

Therefore, it is easy to calculate ratios and compare magnitudes between different things with ratio scales. The zero point implies that nothing is available in the variable.

As a result, comparisons with ratios are more precise. The ratio scale is the most useful of the four scales of measurement because it allows for more precise and standardized measurement with mathematical operations.

Therefore, Ratio scale is an actual number of purchases in a certain time period, dollars spent, miles traveled, number of children in the household, or years of college education.

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the null hypothesis for the given t-test\(`[h, p, 0] = ttest(morningsections, eveningsection)`\)

In the t-test formula for hypothesis testing, the null hypothesis states that there is no difference between the two groups being tested. Therefore, for the given t-test below:

`[h, p, 0] = ttest(morningsections, eveningsection)`,

the null hypothesis is that there is no significant difference between the average bedtimes of students in morning sections versus evening sections.

To explain further, a t-test is a type of statistical test used to determine if there is a significant difference between the means of two groups. The formula for a t-test takes into account the sample size, means, and standard deviations of the two groups being tested. It then calculates a t-score, which is compared to a critical value in order to determine if the difference between the two groups is statistically significant.

In this case, the two groups being tested are morning sections and evening sections, and the variable being measured is the average bedtime of students in each group. The null hypothesis assumes that there is no significant difference between the two groups, meaning that the average bedtime of students in morning sections is not significantly different from the average bedtime of students in evening sections.

The alternative hypothesis, in this case, would be that there is a significant difference between the two groups, meaning that the average bedtime of students in morning sections is significantly different from the average bedtime of students in evening sections. This would be reflected in the t-score obtained from the t-test, which would be compared to the critical value to determine if the null hypothesis can be rejected or not.

In conclusion, the null hypothesis for the given t-test\(`[h, p, 0] = ttest(morningsections, eveningsection)`\) is that there is no significant difference between the average bedtimes of students in morning sections versus evening sections.

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Answer:

Mikes repair shop $100 service charge plus $65 per hour Amys auto repair $40 service charge plus $80 per hour write an equation for each repair shop to represent the total cost of a car repair as a function of the number of hours worked let C = total cost to you let h = number of hours worked. Suppose you need to get the dent in your car repaired you see the ads above in the newspaper your father who knows a bit about cars said it would take no more than 3 hours for the repair person to fix your car how do you determine where you should take your car to get it repaired

-Mike Cost:: M(3) = 100 +65*3 = $295

-Amy Cost:: A(3) = 40 + 80*3 = $280

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

-Mike charges 100 dollars service charge plus 65 dollars per hour.

-Amy charges 40 dollars service charge plus 80 dollars per hour.

-The cost to repair from mike is 100 + 65 * x.

-The cost to repair from amy is 40 + 80 * x.

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

Let x = 3 and you get:

The cost to repair from mike is 100 + 65 * 3 = 295 dollars.

The cost to repaid from amy is 40 + 80 * 3 = 280 dollars.

As long as the time to repair is 3 hours or less, the cost to repair will be cheaper from Amy.

Mark me brinliylist pls

The company that fixing the car will be cheapest is; Amy's repir shop at a cost of $280

We are given equation for total cost of repair shops as;

Cost of repair in Mike's shop is; y = 100 + 65x

Cost of repair in Amy's shop is; y = 40 + 80x

where;

x = number of hours for repair

y = total cost

Now, it takes 3 hours to repair your car. Thus;

Total cost of repair in Mike's shop is; y = 100 + 65(3) = $295

Total Cost of repair in Amy's shop is; y = 40 + 80(3) = $280

We can see that the total cost to fix the car in Amy's shop is cheaper

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Answer:

the desired line is y = 3x - 4

Step-by-step explanation:

The slope formula is not needed here.  If the given line is y = 3x - 2, we can see immediately that the slope is 3, in both cases.

Find the y-intercept as follows:

y = mx + b => 5 = 3(3) + b, or b = -4

Then the desired line is y = 3x - 4

There is a 0.022 percent chance that a student may receive a quiz grade of 95 or above.

The z-score formula is as follows:

z = (95-85)/8.0

= 1.25

Using the z-score table, calculate the probability:

P(z >= 1.25)

= 0.022

The z-score formula can be used to determine the likelihood that a student would receive a quiz grade of 95 or higher. The data set's mean and standard deviation are considered in the formula. The mean score on the quiz in this instance is 85, and the standard deviation is 8.0. By deducting the mean from the desired score (95), the z-score can be computed by dividing the result by the standard deviation (8.0). The z-score in this instance is 1.25.  The likelihood that a student will receive a quiz grade of 95 or higher can be determined using the z-score table. The likelihood of a z-score of 1.25 or higher is 0.022, according to the table. This indicates that there is a 0.022 percent chance that a student will receive a quiz grade of 95 or above.

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A sense of 3 dimensional space on a 2 dimensional surface be created using flat shapes by Overlapping , Shadows and Volume and shading .

A sense of three-dimensional space on a two-dimensional surface can be created using flat shapes by using various techniques that give the illusion of depth and volume.

Some of the techniques are :

(i) Overlapping : This involves placing objects on top of one another to create a sense of depth and hierarchy.

(ii) Shadows : The Shadows can be used to create a sense of depth by suggesting that objects are casting a shadow on each other, which implies that they exist at different levels of the image.

(iii) Volume and shading: Adding volume to shapes by shading and adding highlights can help to create the illusion of three-dimensional space on a two-dimensional surface.

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The amount that Victoria will have in one year if she invests $20 at 7.2% simple interest is $21.44.

The simple interest system does not compound the interest.

This statement implies that interest is not computed on the accumulated interest.  Periodically, the interest is computed on the principal, using the following simple interest formula:

Simple interest = Principal x Rate x Time

Simple interest rate = 7.2% per year

Investment = $20

Investment period = 1 year

Amount in account after 1 year = P + (P x R x T)

= $20 + ($20 x 7.2% x 1)

= $20 + $1.44

= $21.44

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A parallelogram is a quadrilateral with opposite sides that are parallel. In order to determine if the given points form a parallelogram, None of the given options clearly demonstrate that the four points are the vertices of a parallelogram.

A parallelogram is a quadrilateral with opposite sides that are parallel. In order to determine if the given points form a parallelogram, we need to examine the relationships between the sides and diagonals.

Option A, which states that DA = AB = BC = CD, does not provide enough information about the relationship between opposite sides or diagonals. Similarly, Option B, which states that AB = CD = and DA = BC =, does not provide sufficient information.

Option C, which states that DB = and AC =, also does not provide enough information to establish the parallelism of opposite sides.

Option D, which is not provided, cannot be evaluated as it is missing the necessary information.

In conclusion, none of the given options demonstrate the properties required to establish that the four points are the vertices of a parallelogram. Additional information, such as the slopes or lengths of the sides, is needed to determine if the given points form a parallelogram.

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Answer:

The answer is 6%

Step-by-step explanation:

\( i = \frac{prt}{100} \)

300=1250×4×r/100

30000=5000r

divide both sides by 5000

5000r/5000=30000/5000

r=6%

The profit if Ford can sell 5 million vehicles is $350,000,000. The Contribution Margin per Unit is $6,300. The Break-even Units is 1,587,302 vehicles. Ford would need to sell 2,222,222 vehicles to gain a profit goal of $10,000,000. Ford's management will go through with the project since the number of vehicles needed to reach the profit goal is less than double the number of cars needed to break even.

Profit = (Number of vehicles sold) * (Markup per vehicle)

Profit = 5,000,000 * (7% of vehicle price)

Profit = 5,000,000 * (0.07)

Profit = $350,000,000

Contribution Margin per Unit = (Markup per vehicle) / (1 + Markup percentage)

Contribution Margin per Unit = (7% of vehicle price) / (1 + 7%)

Contribution Margin per Unit = (0.07) / (1.07)

Contribution Margin per Unit = $6,300

Break-even Units = Fixed Costs / Contribution Margin per Unit

Given that the Markup per vehicle is the same as the Contribution Margin per Unit, the Break-even Units can be calculated as:

Break-even Units = Fixed Costs / Markup per vehicle

Break-even Units = Fixed Costs / (Number of vehicles sold) * (Markup per vehicle)

Break-even Units = Fixed Costs / (5,000,000 * 0.07)

Break-even Units = Fixed Costs / 350,000

(No information is provided about the Fixed Costs, so the calculation cannot be performed without that information.)

Number of vehicles needed to sell = (Fixed Costs + Profit goal) / Contribution Margin per Unit

Number of vehicles needed to sell = ($10,000,000 + Fixed Costs) / $6,300

(Since the Fixed Costs are not provided, the exact number of vehicles needed to reach the profit goal cannot be calculated.)

The number of vehicles needed to reach the profit goal mentioned above is less than double the number of cars needed to break even, so Ford's management will go through with the project.

Ford's management will go through with the project since the number of vehicles needed to be sold to reach the profit goal is less than double the number of cars needed to break even. However, without the specific information about Fixed Costs and the exact number of vehicles needed to achieve the profit goal, precise calculations cannot be made.

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The preferred stockholders would receive money first before the common stockholders.

Why stockholders preferred will receive money first?

Preferred stockholders typically have priority over common stockholders in receiving payment from the sale of corporate assets or in the distribution of dividends. This is because preferred stock is considered a hybrid security that combines features of both debt and equity. Preferred stockholders have a fixed dividend rate that must be paid before any dividends can be paid to common stockholders. In the event of a corporate liquidation or sale, preferred stockholders have the right to receive their share of the proceeds before common stockholders. Therefore, in the given scenario, the preferred stockholders would receive money first before the common stockholders.

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Answer:

Step-by-step explanation:

-1 3/4 = -1.75.

Answer:

2

Step-by-step explanation:

one cookie plus one cookie is two cookies

Critical values of t, which are used for hypothesis testing and confidence interval calculations, vary depending on the sample size and the degrees of freedom.

b) degrees of freedom.

Degrees of freedom (df) are calculated based on the sample size and represent the number of independent pieces of information available in the data. It is an important parameter in determining the appropriate critical value to use from the t-distribution table. Therefore, before using the t-table, it is essential to calculate the degrees of freedom of the data set in question.

Options a, c, and d are not correct answers as they do not pertain to the calculation needed before using the t-table.

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Complete Question

Since critical values of t vary by sample size, before using the t table we must first calculate:

a) the Z score.

b) degrees of freedom.

c) the population standard deviation.

d) the sample size.

The degrees of freedom will then determine the critical values of t that should be used in calculating confidence intervals or conducting hypothesis tests. Therefore, it is important to consider the sample size when working with t statistics and using the t table.

To answer your question, before using the t-table, you must first calculate the degrees of freedom. The degrees of freedom are important as they determine the critical values of t based on your sample size. Here's a step-by-step explanation:

1. Obtain your sample data.
2. Determine the sample size (n) by counting the number of data points in your sample.
3. Calculate the degrees of freedom (df) by subtracting 1 from the sample size: df = n - 1.
4. Refer to the t-table with the calculated degrees of freedom to find the critical values of t for your desired level of confidence or significance.

By following these steps, you'll be able to find the appropriate critical values of t based on your sample size before using the t-table.

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Check your solution by first checking the end point , in the related equation. Pick a value greater than , such as 2, to check in the inequality. Solve for x. Divide both sides by 3 to isolate the variable.

Answer:

Amount of earning: X

Amount of spending: Y

So the savings = X - Y

The true statements that could be part of the explanation of the statement "tan 40° ≈ 0.84" are: All right triangles with an acute angle of 40° are similar to each other. If you know tan 40° ≈ 0.84 and the length of the leg opposite to the 40° angle, then you can calculate the length of the other leg. The ratio of the opposite side to the hypotenuse in any right triangle with an angle of 40° is always approximately 0.84

In a right triangle, the tangent of an acute angle is defined as the ratio of the opposite side and the adjacent side of that angle. Mathematically, for an acute angle A, tan(A) = opposite/adjacent. In the current case, we are discussing tan 40°. So, if the angle A in a right triangle is 40°, and if the opposite side to that angle is x and the adjacent side is y, then tan 40° = x/y .If we know the value of tan 40°, then we can calculate the value of x/y or y/x .In the following true statements, we will discuss how we can use tan 40° to make some conclusions: The ratio of the opposite side to the hypotenuse in any right triangle with an angle of 40° is always approximately 0.84This statement is true. This is based on the definition of tangent. tan 40° = opposite/adjacent. In a right triangle with an angle of 40°, the hypotenuse is neither the opposite side nor the adjacent side. But, we can write the above equation as opposite/hypotenuse = tan 40°/1. So, the ratio of the opposite side to the hypotenuse in any right triangle with an angle of 40° is always approximately 0.84.

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Answer:

120poles

Step-by-step explanation:

Given

Length of each poles of the paddock = 30

Since a square has 4 sides, the perimeter of the square shaped paddock is what we are to look for.

Perimeter of a square = 4L

L is the length of each side of the paddock

Perimeter = 4(30)

Perimeter of the square = 120

Hence he used 120poles for the paddock

Answer:

1. 90 degrees

2. 23 degrees

3. 67 degrees

4. 5 units

5. 12 units

90°

23°

67°

5 units

12 units

The correct options that could be an example of a function with a domain (-∞0,00) and a range (-∞,4) are given below.Option A. V = -(0.25)x - 4 Option B. V = − (0.25)x+4

A function can be defined as a special relation where each input has exactly one output. The set of values that a function takes as input is known as the domain of the function. The set of all output values that are obtained by evaluating a function is known as the range of the function.

From the given options, only option A and option B are the functions that satisfy the condition.Both of the options are linear equations and graph of linear equation is always a straight line. By solving both of the given options, we will get the range as (-∞, 4) and domain as (-∞, 0).Hence, the correct options that could be an example of a function with a domain (-∞0,00) and a range (-∞,4) are option A and option B.

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