Can someone please help me with this

The left of z as 0.9306, which corresponds to a z-score of approximately 1.48.

To solve this problem, we can use a standard normal distribution table or calculator to find the z-score corresponding to a cumulative area of 0.93.

We know that the area to the right of z will be 0.07 (since we want 7% of the area under the standard normal curve to lie to the right of z). Therefore, the area to the left of z will be 1 - 0.07 = 0.93.

A standard normal distribution table or calculator provides the cumulative probability (area) to the left of a given z-score. For example, a table may list the cumulative area to the left of z as 0.9306, which corresponds to a z-score of approximately 1.48.

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Answer:

Factor x(y-z)

Step-by-step explanation:

The correct answer is d. 1, 3. Both paralleling and bite-wing techniques use the same principles of horizontal angulation.

Horizontal angulation refers to the angle at which the X-ray beam is directed from the X-ray tube towards the film or sensor, perpendicular to the long axis of the teeth. Correct horizontal angulation is crucial for obtaining accurate and clear radiographic images.
In the paralleling technique, the film or sensor is placed parallel to the long axis of the teeth, and the X-ray beam is directed perpendicular to both the teeth and the film/sensor. This technique reduces distortion and provides a more accurate representation of the teeth and surrounding structures.
The bite-wing technique is primarily used for interproximal (between teeth) radiography, capturing images of the crowns of the upper and lower teeth and the alveolar bone in a single exposure. The film or sensor is placed in the mouth with a tab or holder, and the patient bites down to stabilize it. The X-ray beam is directed at the same horizontal angle as in the paralleling technique, ensuring proper alignment with the teeth and film/sensor.
Although the bisecting technique also involves angulation, it uses a different principle known as the bisector angle. In this method, the film or sensor is positioned closer to the teeth, and the X-ray beam is directed at an angle between the long axis of the teeth and the film/sensor, creating a theoretical bisector. This technique may result in some image distortion compared to the paralleling and bite-wing techniques.

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The techniques Paralleling, Bisecting, and Bite-wing all use the principles of horizontal angulation in Dentistry. This angulation refers to the direction of the x-ray beam, which is adjusted in each of these methods to produce the optimal dental image.

The techniques that use the principles of horizontal angulation are Paralleling, Bisecting, and Bite-wing. This means the correct answer is 1, 2, 3 (option a). Horizontal angulation refers to the angle in which the beam of the x-ray is projected. In Dentistry, it signifies the movement of the x-ray tube head in a horizontal plane. For all three techniques, the x-ray beam's angulation is adjusted horizontally in order to attain the desired image.

Paralleling technique requires the dental film, tooth, and x-ray beam to be parallel to each other. Bisecting involves angulating the x-ray beam to correctly intercept the angle formed by the film and tooth. Bite-wing method also uses horizontal angulation by aligning the x-ray beam perpendicular to the curvature of the arch and the film.

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If angle NPO and angle RPQ have the same measure is unknown without more information.

Given:

∠QPO= 140

a) As, from the figure

∠QPO + ∠NPO= 180  {linear Pair}

140 + ∠NPO = 180

∠NPO = 40 degree

b) ∠SPN+ ∠SPR + ∠RPQ = 180  {linear Pair}

90 + ∠SPR + 40 = 180

∠SPR = 180 - 130

∠SPR = 50 degree

c)If a ray PM is drawn dividing angle ∠SPN into two equal parts

Then each part is= 90/2 = 45 degree

d) No, ∠NPO and ∠RPQ do not have the same measure.

If angle NPO and angle RPQ both share rays with QPO, then they are both adjacent angles, which means they share a common vertex (point P) and a common side (ray PO).

However, we cannot conclude that they have the same measure based solely on this information.

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complete question:

If the width of a rectangle is 3 in shorter than its length and area is 28 in. The dimensions of the rectangle are:

According to the given information, the width is 3 inches shorter than the length, so we can express this relationship as:

W = L - 3

The area of a rectangle is calculated by multiplying its length and width:

Area = Length × Width

Given that the area is 28 square inches, we can write the equation:

28 = L × W

Substituting the expression for the width, we have:

28 = L × (L - 3)

Expanding the equation:

28 = L^2 - 3L

Rearranging the equation into a quadratic form:

L^2 - 3L - 28 = 0

To solve this quadratic equation, we can factor it or use the quadratic formula. Let's use the quadratic formula:

L = (-b ± sqrt(b^2 - 4ac)) / (2a)

For our equation, a = 1, b = -3, and c = -28. Substituting these values into the formula, we get:

L = (-(-3) ± sqrt((-3)^2 - 4(1)(-28))) / (2(1))

L = (3 ± sqrt(9 + 112)) / 2

L = (3 ± sqrt(121)) / 2

L = (3 ± 11) / 2

So we have two possible values for L:

L1 = (3 + 11) / 2 = 14 / 2 = 7

L2 = (3 - 11) / 2 = -8 / 2 = -4

Since length cannot be negative, we discard the negative value.

Now, we can find the corresponding width using the relationship W = L - 3:

W = 7 - 3 = 4

Therefore, the dimensions of the rectangle are:

Length = 7 inches

Width = 4 inches

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The parallelogram is a rhombus because all it's angle and sides are equal.

A rhombus is a special case of a parallelogram. In a rhombus, opposite sides are parallel and the opposite angles are equal. The properties of rhombus include;

1. All sides are equal in length.

2. Opposite angles are equal in a rhombus.

3. The diagonals bisect each other at 90 degrees.

4. Adjacent angles add up to 180 degrees.

Therefore since angle DCE = angle FCE

this means that angle FEC = DEC and thus angle D = angle F.

Therefore, we can say that the parallelogram is a rhombus because al it's sides and angles are equal.

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Answer:

The length of each edge of the cube is 21 cm.

Step-by-step explanation:

The surface area of a cube is given by the formula:

SA = 6s^2

where SA is the surface area and s is the length of each edge.

We can rearrange this formula to solve for s:

s = sqrt(SA/6)

Substituting the given value of SA = 2646 cm^2, we get:

s = sqrt(2646/6)

s = sqrt(441)

s = 21

Therefore, the length of each edge of the cube is 21 cm.

The most appropriate measure of variability for this data set is the IQR,

Option B is the correct answer.

Since,

An interquartile range is a measure of the difference between the upper and lower quartiles of a dataset.

We can find the values of the upper and lower quartile and median from a box plot.

The middle line is the median and the first line is the lower quartile and the last line is the upper quartile.

The formula used is Upper quartile - Lower quartile.

We have,

To determine the appropriate measure of variability for the given data, let's first calculate some descriptive statistics:

Mean: (2 + 10 + 10 + 12 + 12 + 20) / 6 = 11

Median: the middle value is 11, since there are an even number of values

Range: the difference between the maximum value (20) and the minimum value (2) is,

20 - 2 = 18

Interquartile range (IQR): Q3 (the third quartile) is the median of the upper half of the data, which is (12, 12, 20), and Q1 (the first quartile) is the median of the lower half of the data, which is (2, 10, 10). Thus, Q3 = 12 and Q1 = 10, and the IQR is 12 - 10 = 2.

Now, we need to determine which measure of variability is most appropriate for this data set.

Option A suggests using the range, which is the difference between the maximum and minimum values.

The range is affected by outliers and extreme values, and in this data set, the value of 19 is significantly larger than the other values, which might make the range an unreliable measure of variability.

Option B suggests using the IQR, which is a measure of the spread of the middle 50% of the data.

The IQR is less affected by extreme values than the range and is often preferred when there are outliers or skewed distributions.

Option C suggests using the mean, which is a measure of central tendency, not variability.

Option D suggests using the median, which is also a measure of central tendency, not variability.

Therefore,

The most appropriate measure of variability for this data set is the IQR,

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Complete question is,

The length of ribbons found at a seamstress are listed.

2, 10, 10, 12, 12, 20

What is the appropriate measure of variability for the data shown, and what is its value?

A. The range is the best measure of variability and equals 14.

B. The IQR is the best measure of variability and equals 2.

C. The mean is the best measure of variability and equals 11.

D. The median is the best measure of variability and equals 11.

Answer:

I think it is 5 I think that will help

Step-by-step explanation:

The appropriate minimum sample size for each group is n1 = n2 ≥ 964. To find the appropriate minimum sample sizes for estimating the difference between two means with a 95% margin of error equal to ±5 .

Standard deviations (σ1 and σ2) both approximately equal to 39.7, we can use the following formula:

[tex]n1 = n2 ≥ (Z * (σ1 + σ2) / E)²[/tex]

Where:
- n1 and n2 are the minimum sample sizes for the two groups
- Z is the Z-score corresponding to the desired confidence level (95%)
- σ1 and σ2 are the standard deviations of the two groups (both ≈ 39.7)
- E is the desired margin of error (±5)

From a standard normal (Z) table, we can find the Z-score for a 95% confidence level, which is 1.96. Since the sample sizes are equal and the standard deviations are approximately the same, we can simplify the formula as follows:

n1 = n2 ≥ (1.96 * (39.7 + 39.7) / 5)²

n1 = n2 ≥ (1.96 * 79.4 / 5)²

n1 = n2 ≥ (31.0376)²

n1 = n2 ≥ 963.3344

Since we need to round up to the nearest whole number, the minimum sample size for each group is:

n1 = n2 ≥ 964

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I'm sorry, but I cannot provide an answer to your question as it does not make sense. The terms "Make you 23 14 The targa Theme Ronda's dod 251 28 20 16 15- 14 NN Number of professors 10- 다. 5- 4 0 13 1 2 B Number of courses taught per semester" do not form a coherent question or statement. Can you please rephrase or provide more context for your question?

It seems like you're asking about the theme "Rondas" and how it relates to the number of professors and courses taught per semester. Here's an answer incorporating the terms you've provided:

The theme "Rondas" could be an educational approach or topic discussed in a specific curriculum. In this context, there are 14 professors teaching this theme. Each professor teaches a varying number of courses per semester, ranging from 1 to 5. In total, there are 23 courses offered that cover the theme "Rondas" within the semester.

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Among the graphs showing relation that is attached, the graph that represents a function is the first and the image is attached

The relation that is a function is one that meet only one point when a vertical line is drawn across the graph.

This is to say that, there is only one output value for any nput value. however in any case where by the output value is more than one for a particular input then this ceases to be a function.

Applying this rule, the relation that is a function is the first and the picture is attached in the answer

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In a standard deck, there is a 1 in 52 chance (approximately 1.92%) of drawing the chosen card in a fair draw.

To answer this, we need to understand the terms you've provided:

1. Deck: Refers to a standard deck of 52 playing cards.
2. Gross: The total amount won before subtracting the initial bet.
3. A fair draw: is drawing a card from the deck with an equal probability of selecting any card.

In this game, you bet $1 to pick a certain card in a fair draw from a standard deck. If you lose, you lose your $1. If you win, you collect the gross amount indicated, and your net gain is $1 less.

1. Choose a specific card from the standard deck (e.g., the Ace of Spades).
2. Place a $1 bet that you will draw the chosen card in a fair draw.
3. Draw a card from the deck.
4. If the drawn card matches your chosen card, you win and collect the gross amount.
5. Calculate your net gain by subtracting your initial $1 bet from the gross amount.

Remember, in a standard deck, there is a 1 in 52 chance (approximately 1.92%) of drawing the chosen card in a fair draw.

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In the following games, you lay down $1 to bet that you will pick a certain card in a fair draw from a standard deck. If you lose, then you lose your $1. If you win, then you collect the gross amount indicated, so your net gain is $1 less.

What is the expected financial value of a bet where you will win $52 if you draw a Queen of Hearts?

A. -$51/52

B. -$1/52

C. $0

D. $1/52

E. $51/52

Answer:

  (c)  Reflection across x = -2

Step-by-step explanation:

You want to know the line of reflection that causes VWYZ to be mapped to V'W'Y'Z' as shown in the attached figure.

The line of reflection is the perpendicular bisector of the segment joining a point and its image.

The midpoint of VV' is ((-11, 2) +(7, 2))/2 = (-4, 4)/2 = (-2, 2). The line VV' has the same y-coordinate at both ends, so is a horizontal line. Its perpendicular bisector is the vertical line through (-2, 2), which is the line ...

  x = -2 . . . . . choice C

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You will need to make investments about $160.75 each month for the next year to reach a future price of $2000 with an 8% APR compounded monthly

To calculate the monthly investment required to attain a future cost of $2000 at an APR of 8% compounded monthly for a year, we will use the formulation for future value of an annuity:

[tex]FV = P * [(1 + r/n)^{(n*t)} - 1]/(r/n)[/tex]

Where:

Plugging in the values, we get:

[tex]2000 = P * [(1 + 0.08/12)^{(12*1)} - 1]/(0.08/12)[/tex]

solving for P, we get:

P = 160.75

Therefore, you will need to make investments about $160.75 each month for the next year to reach a future price of $2000.

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(a) To find the probability density function (pdf) of Z = X + Y, we can use the convolution formula:

fZ(z) = ∫_{-∞}^{∞} fX(x) fY(z - x) dx

Since X and Y are both uniformly distributed on (0,1), we have:

fX(x) = fY(y) = 1, for 0 < x,y < 1

Substituting these expressions, we get:

fZ(z) = ∫_{0}^{1} 1 * 1 dz - ∫_{0}^{z} 1 * 1 dx = z, for 0 < z < 1

fZ(z) = 0, for z ≤ 0 or z ≥ 1

Therefore, the pdf of Z is:

fZ(z) = {

z, 0 < z < 1,

0, otherwise.

}

(b) To find the moment generating function (MGF) of Z, we can use the definition:

M_Z(t) = E[e^{tZ}] = ∫_{-∞}^{∞} e^{tz} fZ(z) dz

Using the pdf of Z, we get:

M_Z(t) = ∫_{0}^{1} e^{tz} z dz = [(ze^{tz})/(t^2)]|_{0}^{1} = (e^t - 1)/t^2, for t ≠ 0

M_Z(t) = 1, for t = 0

Therefore, the MGF of Z is:

M_Z(t) = {

(e^t - 1)/t^2, t ≠ 0,

1, t = 0.

}

Note that the MGF is defined only for values of t for which the integral converges.

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CIrcle A is subset to circle B because Circle A can be dilated and then inscribed  to obtain circle B.

Circle A is a smaller circle than Circle B and is contained entirely inside Circle B. Therefore, Circle A is a "smaller circle" or a "subset" of Circle B. We can also say that Circle A is "inscribed" inside Circle B.

To see this, we can imagine taking Circle A and expanding it uniformly in all directions by a factor of 3, so that its radius becomes 6 (which is the same as the radius of Circle B).

The center of the expanded circle would be at (9, 3), which is the midpoint between the centers of Circle A and Circle B. This expanded circle would exactly coincide with Circle B, meaning that Circle A can be "scaled up" or "dilated" to obtain Circle B.

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The slope of the tangent line at (4, 54) is 45. So the equation of the tangent line to the curve y = x^3 - 3x + 2 at the point (4, 54) is y = 45x - 126.

To find the equation of the tangent line to the curve y = x^3 - 3x + 2 at the point (4, 54), we need to use calculus. First, we find the derivative of the function:

y' = 3x^2 - 3

Next, we plug in x = 4 to find the slope of the tangent line at that point:

y'(4) = 3(4)^2 - 3 = 45

So the slope of the tangent line at (4, 54) is 45. To find the equation of the line, we use the point-slope form of the equation:

y - y1 = m(x - x1)

where m is the slope and (x1, y1) is the point on the line. Plugging in our values, we get:

y - 54 = 45(x - 4)

Simplifying, we get:

y - 54 = 45x - 180

y = 45x - 126

So the equation of the tangent line to the curve y = x^3 - 3x + 2 at the point (4, 54) is y = 45x - 126.

To find the equation of the tangent line to the curve y = x^3 - 3x + 2 at the point (4, 54), we need to first find the derivative of the function and then use the point-slope form of a line.

1. Find the derivative of the function with respect to x:
y'(x) = d/dx (x^3 - 3x + 2) = 3x^2 - 3

2. Evaluate the derivative at the given point (4, 54) to find the slope of the tangent line:
m = y'(4) = 3(4)^2 - 3 = 3(16) - 3 = 48

3. Use the point-slope form of a line (y - y1 = m(x - x1)):
y - 54 = 48(x - 4)

4. Simplify the equation:
y - 54 = 48x - 192
y = 48x - 138

So, the equation of the tangent line to the curve y = x^3 - 3x + 2 at the point (4, 54) is y = 48x - 138.

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The two sides with lengths of 6 and 3 will not satisfy the Triangle Inequality Theorem, which shows that there is no way to construct a triangle in which the sum of the lengths of two of the sides is less than or equal to the length of the third side.

Given data ,

Let the triangle be represented as ΔABC

Now , the lengths of the sides of the triangle are

AB = 6 units

BC = 3 units

AC = 9 units

Now , The Triangle Inequality Theorem states that the following requirements must be met for any triangle with sides measuring a, b, and c:

a + b > c

a + c > b,

b + c > a

If we have sides in this situation that are 6 and 3, we can see that 6 + 3 = 9, which is not longer than the third side. As a result, it is impossible to build a triangle with sides that are 6, 3, and the third side's length

Hence , the triangle is solved

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The complete question is attached below :

The two sides with lengths of 6 and 3 will____, which shows there is no way to construct a triangle in which the,_______of two of the sides,_____the length of the third side.

Probability is a measure of the likelihood of an event occurring.

A. To find how many foreclosures to expect, we can use the expected value formula: E(X) = np, where X is the number of foreclosures, n is the number of loans, and p is the foreclosure rate. Substituting the given values, we have E(X) = (300)(1/136) ≈ 2.21. Therefore, we can expect about 2 foreclosures last month.

B. To find the probability of exactly two foreclosures, we can use the Poisson distribution with parameter λ = E(X) = 2.21. The probability mass function of the Poisson distribution is given by P(X = k) = (e^(-λ) * λ^k) / k!, where k is the number of foreclosures. Substituting k = 2 and λ = 2.21, we have P(X = 2) = (e^(-2.21) * 2.21^2) / 2! ≈ 0.244. Therefore, the probability of exactly two foreclosures is about 0.244.

C. To find the probability of at least one foreclosure, we can use the complement rule: P(X ≥ 1) = 1 - P(X = 0). Since the foreclosure rate is one out of every 136 loans, the probability of not having a foreclosure in a single loan is (135/136). Therefore, the probability of not having a foreclosure in 300 loans is (135/136)^300 ≈ 0.427. Substituting this value into the complement rule, we have P(X ≥ 1) = 1 - 0.427 ≈ 0.573. Therefore, the probability of at least one foreclosure is about 0.573.

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Since the perimeter of the triangle is 50cm, the value of x is equal to 9 units.

In Mathematics and Geometry, the perimeter of a triangle can be calculated by using this mathematical equation:

P = a + b + c

Where:

P represents the perimeter of a triangle.

a, b, and c represents the side lengths of a triangle.

By substituting the given parameters or dimensions into the formula for the perimeter of a triangle, we have the following;

50  = x + 4 + 2x + 6 + x + 4

50 = 4x + 14

4x = 50 - 14

x = 36/4

x = 9 units.

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Answer:

D. 421 in.².

Step-by-step explanation:

To determine the amount of wrapping paper needed to cover the shirt box, Patrick needs to calculate the surface area of the box.

The surface area of a rectangular box can be calculated by adding the area of each of its six faces. In this case, the box has two faces that measure 10 in. by 1.5 in., two faces that measure 17 in. by 1.5 in., and two faces that measure 10 in. by 17 in.

So, the total surface area of the box is:

2(10 in. x 1.5 in.) + 2(17 in. x 1.5 in.) + 2(10 in. x 17 in.)

= 30 in.² + 51 in.² + 340 in.²

= 421 in.²

Therefore, Patrick will need 421 in.² of wrapping paper to cover the rectangular shirt box.

The answer is D. 421 in.².

Answer:

D

Step-by-step explanation:

D is the correct answer

From the equation of the circle, the radius of the circle is 3 and the center lies at (1, 0)

A circle is a closed curve that is drawn from the fixed point called the center, in which all the points on the curve are having the same distance from the center point of the center. The equation of a circle with (h, k) center and r radius is given by:

(x-h)^2 + (y-k)^2 = r^2

This is the standard form of the equation. Thus, if we know the coordinates of the center of the circle and its radius as well, we can easily find its equation.

In this problem, we have an equation x^2 + y^2 - 2x - 8 == 0

The radius of this circle is 3 and the center is at (1, 0).

The correct option are A and C

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Answer: That's correct! The equation x = 13 + 2y can be rearranged to x - 2y = 13.

Step-by-step explanation:

The solution is, The answer is, -2.4, this expression is best represented by the number line model.

We know about number line model:

In mathematics, a number line is a straight line with numbers placed at equal intervals or segments along its length. A number line can be drawn horizontally and extended in any direction indefinitely.

Because the line has four segments and a -2 interval, option F is accurate.

As a result, it can write -2.4.

The solution is, The answer is, -2.4, this expression is best represented by the number line model.

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So the maximum number of edges in an undirected graph with 100 vertices is 4950.

In an undirected graph, each edge connects two vertices, and as such, it is counted twice, once for each vertex it connects. Therefore, the total number of edges in the graph is the sum of the degrees of all vertices, divided by 2.

In a complete graph with n vertices, every vertex is connected to every other vertex, except itself, and so the degree of each vertex is n-1 (it is connected to n-1 other vertices). Therefore, the total number of edges in the graph is:

n * (n-1) / 2

Substituting n = 100, we get:

100 * 99 / 2 = 4950

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In this scenario, we are interested in testing a hypothesis about the proportion of first-year college students who are undecided about their major. The claimed proportion is 0.47, but the researcher believes this value is too high. To test this hypothesis, the researcher surveys a random sample of 450 first-year college students and finds that 189 of them are undecided about their major.

To find the p-value in this problem, we need to conduct a hypothesis test. Let's define the terms first:

1. Proportion: The proportion of first-year college students who are undecided about their major, claimed to be 0.47.
2. Hypothesis: We are testing if the claimed proportion (0.47) is too high.
3. Sample: A random sample of 450 first-year college students, with 189 undecided about their major.

Now, let's follow the steps of a hypothesis test:

Step 1: Define the null hypothesis (H0) and alternative hypothesis (H1).
H0: p = 0.47 (The proportion is equal to 0.47)
H1: p < 0.47 (The proportion is less than 0.47)

Step 2: Calculate the test statistic.
Test statistic = (Sample proportion - Claimed proportion) / Standard error
Sample proportion = 189 / 450 = 0.42
Standard error = sqrt[(0.47 * (1 - 0.47)) / 450] ≈ 0.0229

Test statistic = (0.42 - 0.47) / 0.0229 ≈ -2.18

Step 3: Find the p-value using the test statistic from a Z-distribution table or calculator.
The test statistic is -2.18, which corresponds to a p-value of approximately 0.0146.

Step 4: Compare the p-value to the chosen significance level (alpha).
The p-value is between 0.01 and 0.05.

Therefore, the answer is: C. between 0.01 and 0.05.

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The solution is, the simplification of 1-|0.2-(m-3)+1/4|=0 is m = 2.45.

We know that,

Simplify simply means to make it simple. In mathematics, simply or simplification is reducing the expression/fraction/problem in a simpler form. It makes the problem easy with calculations and solving.

here, we have,

1-|0.2-(m-3)+1/4|=0

or, 1 = |0.2-(m-3)+1/4|

or, 1 - 1/4 = 0.2-(m-3)

or, 3/4 = 0.2-(m-3)

or, m-3 = -0.55

or, m = 2.45

Hence, The solution is, the simplification of 1-|0.2-(m-3)+1/4|=0 is m = 2.45.

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The requried arc length of DF is given as 66°.

A circle with tangent and secant pair is shown, we have to determine the arc  DF.

The angle between the tangent and secant of the circle is given as:

∠E= DG - DF/2

Substitute the value in the above expression,
24 = 114 - x/2
48 = 114 - x
x = 114 - 48
x = 66°

Thus, the requried arc length of DF is given as 66°.

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Answer: 924

Step-by-step explanation: