Please help me I don’t understand it’s number 2
2. Select all the pairs that are
equivalent.

The researchers employed a scientific method known as Ethnography.

Ethnography to study the recorded data. Ethnography is a method of research that involves the systematic study of people and cultures, often through the use of participant observation and the collection of detailed field notes. In this case, the researchers used the recordings to gain an understanding of the student's daily activities and how they were affected by their environment.

The researcher also often conducts in-depth interviews, focus groups, or surveys with group members to comprehensively understand their perspectives and experiences.

Ethnography can be applied in various fields, including anthropology, sociology, education, and business. It is commonly used to study communities, organizations, and other social groups.

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Answer:

x = 4

Step-by-step explanation:

Translate the word problem into an equation

\(\frac{80}{5x} = 4\)

Solve for x

1.) Multiply both sides by 5x

80 = 20x

2.) Divide both sides by 20

4 = x

Answer:

22 feet in centimeters is 670.56

22 inch in centimeters is 55.88

Step-by-step explanation:

Let x be the number of concessionary tickets sold.

Then the number of regular tickets sold is 5 times x, or 5x.

The revenue from the concessionary tickets is x times $78, or 78x.

The revenue from the regular tickets is 5x times $126, or 630x.

The total revenue is the sum of these two amounts:

78x + 630x = $50,976

Combining like terms:

708x = $50,976

Dividing both sides by 708:

x = 72

So the number of concessionary tickets sold is 72.

The number of regular tickets sold is 5 times this or 360.

The total number of tickets sold is the sum of these two amounts:

72 + 360 = 432

Therefore, 432 admission tickets were sold that day.

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The random assignment of subjects to different experimental conditions is a powerful method of controlling differences between groups of participants in an experiment. It is a technique used in experimental design to ensure that the differences observed between groups are not due to any pre-existing differences between the groups.

Random assignment is used to create groups that are as similar as possible in terms of all possible factors that might affect the outcome of the experiment. By randomly assigning subjects to different experimental conditions, researchers can be confident that any differences between groups are due to the manipulation of the independent variable and not to pre-existing differences between the groups.

The process of random assignment involves selecting participants from a pool of eligible candidates and assigning them to different groups at random. This can be done in a variety of ways, including using a computer program to generate random assignments, using a random number table, or drawing names out of a hat.

Random assignment ensures that each participant has an equal chance of being assigned to any of the different experimental conditions. This means that there is no systematic bias in the assignment of participants to different groups, which helps to ensure that any differences observed between groups are due to the experimental manipulation and not to any pre-existing differences between the groups.

In summary, random assignment of subjects to different experimental conditions is an important method of controlling differences between groups in an experiment. It helps to ensure that any differences observed between groups are due to the experimental manipulation and not to any pre-existing differences between the groups.

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Answer:

Negative associaction

Step-by-step explanation:

To simplify the expression 16+(-3)-3/7j-6/7j+4, we first need to combine like terms. The real numbers (16, -3, and 4) can be added together, and the imaginary numbers (-3/7j and -6/7j) can also be added together. So we have:

16 + (-3) + 4 + (-3/7j) + (-6/7j)

Simplifying the real numbers:

= 16 - 3 + 4

= 17

Simplifying the imaginary numbers:

= (-3/7j) + (-6/7j)

= (-9/7j)

Putting it all together, we get:

16 + (-3) - 3/7j - 6/7j + 4 = 17 - 9/7j

So the simplified expression is 17 - 9/7j.

To find the average value of a function from a graph, you can follow these steps:

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Answer:

257

Step-by-step explanation:

Let the number of Adults = x

Number of senior citizens = y

Number of children = z

x + y + z = 670 tickets

The Family Arts Center charges $22 for adults, $13 for senior citizens, and $5 for children for their live performance on Sunday afternoon.

$22 × x + $13 × y + $5 × z = $8526

22x + 13y + 5z = 8526

There were 49 more children than adults.

z = x + 49

x + y + z = 670 tickets

x + y + x + 49 = 670

2x + 49 + y = 670

y = 670 - 2x - 49

We substitute

22x + 13y + 5z = 8526

22x + 13(670 - 2x - 49) + 5(x + 49) = 8526

22x + 8710 - 26x - 637 + 5x +245 = 8526

22x + 5x - 26x + 8710 - 637 + 245 = 8526

x + 8318 = 8526

x = 8526 - 8318

x = 208

The number of Adults = 208

The number rod children is calculated as:

z = x + 49

z = 208 + 49

z = 257

The number of children = 257

If p (s₁) =0.3, p (s₃) =0.4, p(s₄) =0.1 then the probability of event a, p(a), is 0.7.

We have the following probabilities:

p(s₁) = 0.3

p(s₃) = 0.4

p(s₄) = 0.1

so a = {s₁, s₃}.

To calculate the probability of event a, denoted as p(a), you can simply add up the probabilities of the sample points in the set a:

p(a) = p(s₁) + p(s₃)

Substituting the given probabilities:

p(a) = 0.3 + 0.4

p(a) = 0.7

Therefore, the probability of event a, p(a), is 0.7.

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Answer:

-3, 3

6,21

9,-9

Step-by-step explanation:

Answer:

> Your coordinates are; -3, 3 || 6, 21 || 9, -9

Step-by-step explanation:

> I hope this solves your problem correctly.

Answer:

SOH-CAH-TOA

x=14.412

x=14.412≈14.4 feet

The standard deviation of the distribution is approximately 24.78. The Interquartile Range (IQR) is 20. The boxplot of the distribution reveals the presence of outliers at values 96 and 99.

a. To calculate the standard deviation of the distribution, we first need to find the mean. Adding up all the values and dividing by the number of values gives us a mean of 28.12. Next, we calculate the squared differences between each value and the mean, sum them up, and divide by the number of values minus one. Taking the square root of this result gives us the standard deviation, which in this case is approximately 24.78.

b. The Interquartile Range (IQR) is a measure of statistical dispersion and is calculated as the difference between the upper quartile (Q3) and the lower quartile (Q1). To find Q1 and Q3, we first need to order the data set in ascending order. Doing so, we find that Q1 is 16 and Q3 is 36. Therefore, the IQR is 36 - 16 = 20.

c. The boxplot provides a visual representation of the distribution and helps identify outliers. It consists of a rectangular box that spans from Q1 to Q3, with a line at the median (Q2). Whiskers extend from the box to indicate the range of the data, excluding outliers. Any data points lying beyond the whiskers are considered outliers. In this case, we have two outliers: one at 96 and another at 99, as they fall outside the whiskers. These outliers are represented as individual data points on the boxplot.

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Answer:

the answer is the one in the bottom right corner

Answer:

2.5 hours

Step-by-step explanation:

The perimeter of a rectangle is the sum of all sides of the rectangle. Then the width of the city block is 100 units.

Given,

Bijan will cover the neighborhood block 20 times and runs a total of 8 miles.

Now,

Perimeter of rectangle,

Perimeter of rectangle = 2 (Length + Width)

Length = 3/20

Width = w

To find the width of a city block,

So for one time he runs will be,

= 8/20 = 0.4

Perimeter = 0.4 mile

Then width will be,

Perimeter of rectangle = 2 (Length + Width)

0.4 = 2(3/20 + w)

w = 0.05

Then the width of a city block will be

width = 1/w = 20

width = 20 units

Thus, the width of the city block is 20 units.

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The inequality a ≤ 10 means all numbers that are less than or equal to 10 on the number line.

An equation consists of numbers and variables linked together by mathematical operations to form an expression.

The number line contains numbers being marked at regular intervals. The integers are placed at equal intervals.

An inequality is an expression that is used to show the non equal comparison of numbers and variables.

The inequality a ≤ 10 represents all numbers that are less than or equal to 10.

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From the calculation, all three inequalities are satisfied, which means that the given measurements produce one triangle.

To determine whether the given measurements produce one triangle, two triangles, or no triangle at all, we can use the Law of Sines and the Triangle Inequality Theorem.

Given:

a = 10

b = 13.6

A = 33°

Determine angle B:

Angle B can be found using the equation: B = 180° - A - C, where C is the remaining angle of the triangle.

B = 180° - 33° - C

B = 147° - C

Apply the Law of Sines:

The Law of Sines states that in any triangle, the ratio of the length of a side to the sine of its opposite angle is constant.

a/sin(A) = b/sin(B) = c/sin(C)

We can rearrange the equation to solve for side c:

c = (a * sin(C)) / sin(A)

Substituting the given values:

c = (10 * sin(C)) / sin(33°)

Determine angle C:

We can use the equation: C = arcsin((c * sin(A)) / a)

C = arcsin((c * sin(33°)) / 10)

Apply the Triangle Inequality Theorem:

The Triangle Inequality Theorem states that the sum of the lengths of any two sides of a triangle must be greater than the length of the remaining side.

In this case, we need to check if a + b > c, b + c > a, and c + a > b.

If all three inequalities are satisfied, it means that the measurements produce one triangle. If one of the inequalities is not satisfied, it means no triangle can be formed.

Now, let's perform the calculations:

B = 147° - C (from step 1)

c = (10 * sin(C)) / sin(33°) (from step 2)

C = arcsin((c * sin(33°)) / 10) (from step 3)

Using a calculator, we find that C ≈ 34.65° and c ≈ 6.16.

Now, let's check the Triangle Inequality Theorem:

a + b > c:

10 + 13.6 > 6.16

23.6 > 6.16 (True)

b + c > a:

13.6 + 6.16 > 10

19.76 > 10 (True)

c + a > b:

6.16 + 10 > 13.6

16.16 > 13.6 (True)

All three inequalities are satisfied, which means that the given measurements produce one triangle.

In summary, with the given measurements of a = 10, b = 13.6, and A = 33°, we can determine that one triangle can be formed. The measures of the angles are approximately A = 33°, B ≈ 147° - C, and C ≈ 34.65°, and the lengths of the sides are approximately a = 10, b = 13.6, and c ≈ 6.16.

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Q.2: A review of the t-test on the significance of individual independent variable suggests that, based on the p-values. None of the independent variables could be retained. This is because if the p-value is high, it means the significance is low.

Q3: Choose the right option below. Based on the full regression model involving all of the independent variables. VIF for Size = 5.3352, VIF for Fireplace = 10.1873, VIF for bedrooms = 2.7885.

Q.4: Based on VIF values, there is concern for collinearity in this dataset. True

Q5: Based on the normal probability plot, the normality assumption seems to be met. True

Q7: Based on conducting residual analysis the model seems. Adequate.

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Answer:

Equal sides of triangle = 14 cm

Base of an isosceles triangle = 47 cm

Step-by-step explanation:

Given:

Perimeter of the triangle = 75 cm

Base of an isosceles triangle = five more than three times the equal side

Find:

Lengths of isosceles triangle

Computation:

Assume;

Equal sides of triangle = a

So,

Base of an isosceles triangle = 3a + 5

Perimeter of the triangle = Base of an isosceles triangle + 2[Equal sides of triangle]

Perimeter of the triangle = 3a + 5 + 2[a]

Perimeter of the triangle = 5a + 5

75 = 5a + 5

5a = 70

a = 14

Equal sides of triangle = 14 cm

Base of an isosceles triangle = 3a + 5

Base of an isosceles triangle = 3(14) + 5

Base of an isosceles triangle = 42 + 5

Base of an isosceles triangle = 47 cm

Answer:

\(64x^{12}\)

Step-by-step explanation:

We have to use the law of indices for finding the equivalent expression.

\((8x^{5})^{2} = 64x^{10}\)  We square 8, which is 64 and multiply the two powers.

\((x^{4})^{\frac{1}{2}} = x^{2}\)  We multiply the 2 powers giving us, \(\frac{4}{2}\), which simplifies to 2.

\(64x^{10}\) × \(x^{2}\) = \(64x^{12}\)  This is the answer as we multiply the two indices together.

I hope this helps!! ^-^

Answer:

64x¹²

Step-by-step explanation:

(8x^5)^2 × (x^4)^1/2

64x^10 × (x^4)^1\2

64x^10 × x^2

Calculate:

64x^12

The volume of the prism is

The volume of the prism is solved by the formula

= area of triangle * depth

Area of the triangle

= 1/2 base * height

base = p = cos 51.34 * √41 = 4

height = q = sin 51.34 * √41 = 5

= 1/2 * 4 * 5

= 10

volume of the prism

= area of triangle * depth

= 10 * 7

= 70 cm³

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If the provided SHA hash value is different from the one I calculated, it indicates that there has been a modification or alteration in the data or the process used to calculate the hash.

This inconsistency raises concerns about data integrity and the authenticity of the information.

SHA (Secure Hash Algorithm) is a cryptographic hash function that generates a unique hash value for a given input. It is designed to be highly sensitive to any changes in the input data, meaning even a small alteration in the data will result in a completely different hash value. Therefore, if the provided SHA hash value differs from the one I calculated, it suggests that either the input data has been tampered with, or there is an error in the hash calculation process.

In such a situation, it is important to investigate the cause of the discrepancy and determine the source of the error. It could be due to accidental data corruption, intentional tampering, or an error in the hash calculation algorithm or implementation. Validating the integrity of the data becomes crucial to ensure the accuracy and trustworthiness of the information.

To resolve the issue, a comparison of the original and modified data should be conducted, and the hash calculation process should be carefully reviewed. It is also advisable to verify the integrity of the data through other means, such as using digital signatures or checksums, to detect any unauthorized modifications.

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Answer:373248

Step-by-step explanation:

72^3 = 373248

Answer:

Step-by-step explanation:

What is 2 units up and 0 to the right from (-4,2).

Answer:

(-4,4)

Step-by-step explanation:

To find the domain and range of a piecewise function, you will need to consider each piece separately and then combine the results. First Identify the domain of each piece, then Identify the range of each piece and Combine the domains and ranges

Note: Sometimes you may find that domain or range of a certain piece is not mentioned in the function, in that case, you can assume it to be the default domain or range of real numbers.

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The volume of the rectangular pyramid that is shown below is calculated as: 360 cubic centimeters.

The volume of a rectangular pyramid can be calculated using the formula that is expressed:

Volume = 1/3 * length * width * height

From the image given, we have the following parameters to solve for the volume:

length = 15 cm

Width = 9 cm

height = 8 cm

Plug in the values:

Volume of the Rectangular Pyramid = 1/3 * 15 * 9 * 8

= 1/3 * 1,080

Volume = 360 cubic centimeters.

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B. 2 and OD. 15 are not possible lengths for the third side of the triangle.

To determine the possible values for the length of the third side of a triangle, we need to consider the triangle inequality theorem, which states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

Given that two sides have lengths 6 and 9, we can analyze the possibilities:

6 + 9 > x

x > 15 - The sum of the two known sides is greater than any possible third side.

6 + x > 9

x > 3 - The length of the unknown side must be greater than the difference between the two known sides.

9 + x > 6

x > -3 - Since the length of a side cannot be negative, this inequality is always satisfied.

Based on the analysis, the possible values for the length of the third side are:

A. 7

C. 4

□E. 10

O F. 12

B. 2 and OD. 15 are not possible lengths for the third side of the triangle.

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(a) The times at which the blood pressure is 100 mmHg are t = 0 and t = 1/70.

b) The time at which the blood pressure is 120 mmHg is t = 1/140.

c)The times at which the blood pressure is between 100 and 105 mmHg are t = arcsin(1/4)/70π and t = 1 - arcsin(1/4)/70π

(a) To determine the times at which the blood pressure is 100 mmHg in the interval [0, 1], we need to find the values of t that satisfy the equation P(t) = 100:
100 = 20 sin(70πt) + 100
0 = 20 sin(70πt)
sin(70πt) = 0
70πt = nπ, where n is an integer
t = n/70
In the interval [0, 1], the possible values of n are 0 and 1. Therefore, the times at which the blood pressure is 100 mmHg are t = 0 and t = 1/70.

(b) To determine the times at which the blood pressure is 120 mmHg in the interval [0, 1], we need to find the values of t that satisfy the equation P(t) = 120:
120 = 20 sin(70πt) + 100
20 = 20 sin(70πt)
sin(70πt) = 1
70πt = (2n+1)π/2, where n is an integer
t = (2n+1)/140
In the interval [0, 1], the possible value of n is 0. Therefore, the time at which the blood pressure is 120 mmHg is t = 1/140.

(c) To determine the times at which the blood pressure is between 100 and 105 mmHg in the interval [0, 1], we need to find the values of t that satisfy the inequality 100 < P(t) < 105:
100 < 20 sin(70πt) + 100 < 105
0 < 20 sin(70πt) < 5
0 < sin(70πt) < 1/4
Since sin(70πt) is positive and less than 1/4 in the interval [0, 1], we need to find the values of t that satisfy the equation sin(70πt) = 1/4:
sin(70πt) = 1/4
70πt = arcsin(1/4)
t = arcsin(1/4)/70π
The times at which the blood pressure is between 100 and 105 mmHg are t = arcsin(1/4)/70π and t = 1 - arcsin(1/4)/70π.

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