Find an equivalent ratio to 8:7. O a. 40:35 O b. 40:30 O c. 20:19 O d. none of the above​

If the sample has the same mix of people, in the same proportions, as the population being studied then sociologists know if the sample they are using is representative. So the option c is correct.

No subject is off-limits when sociologists use the sociological lens and start asking questions. Every facet of human behaviour has the potential to be studied. Sociologists cast doubt on the society that people have built and inhabit. They observe behavioral patterns as individuals navigate that world.

Sociologists have uncovered workplace patterns that have revolutionized industries, family patterns that have educated parents, and educational patterns that have supported structural changes in classrooms by using sociological methodologies, methodical research, and a scholarly interpretive approach.

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The complete question is;

How do sociologists know if the sample they are using is representative?

a. If the people in the sample freely volunteered to serve as representatives

b. If the sample has an even number, decided by the researcher, of people from several different categories or backgrounds

c. If the sample has the same mix of people, in the same proportions, as the population being studied

d. If the participants have been interviewed to reveal possible bias.

Answer:

Step-by-step explanation:

Point given:

Translation rule:

Image is:

The two solutions are both A and B are knights and both A and B are knaves.

Let's consider the statements made by A and B.

If A is a knight (truth-teller), then their statement "A is a knight" would be true. In this case, B must be a knight as well, since B's statement "A is a knave" would be false. Therefore, (A, B) = (Knight, Knight) is one possible solution.

If A is a knave (liar), then their statement "A is a knight" would be false. In this case, B must be a knave as well, since B's statement "A is a knave" would also be false. Therefore, (A, B) = (Knave, Knave) is another possible solution.

In summary, the two possible solutions are:

(A, B) = (Knight, Knight)

(A, B) = (Knave, Knave)

In the first solution, both A and B are knights, meaning they both tell the truth. In the second solution, both A and B are knaves, meaning they both lie.

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a. To calculate the solid angle subtended by the thunderstorm cloud, we can use the formula for the solid angle of a cone-like region given by: Solid Angle = ∫∫ sin(θ) dθ dφ.

In this case, the limits of integration are π/6 < θ < π/2 and 0 < φ < π/8. ∫∫ sin(θ) dθ dφ = ∫(π/8 to π/2) ∫(0 to π/8) sin(θ) dθ dφ. Evaluating this integral will give us the solid angle subtended by the thunderstorm cloud. b. To determine the percentage of the sky occupied by the thunderstorm cloud, we need to calculate the ratio of the solid angle subtended by the cloud to the total solid angle of a full sphere (4π steradians), and then multiply by 100. Percentage of Sky Occupied = (Solid Angle / 4π) * 100.

By substituting the value of the solid angle obtained in part (a) into this formula, we can determine the percentage of the sky occupied by the thunderstorm cloud. Please note that without specific numerical values for the limits of integration, it is not possible to provide a numerical answer in this case.

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The equation representing the total cost of getting the computer fixed is T = 0.10V + 20H.

Let's define the variables in this situation:

V = Value of the computer (in dollars)

C = Initial charge (in dollars)

S = Service fee (in dollars)

H = Hours of service

According to the given information, there is an initial charge of 10% of the value of the computer, which can be represented as:

C = 0.10V

Additionally, there is a service fee of $20 per hour, so the total service fee can be calculated as:

S = 20H

The value of the computer is given as $525, so we substitute V with 525 in the equation for the initial charge:

C = 0.10 × 525

Now we can summarize the equation to represent the total cost (T) to get the computer fixed:

T = C + S

Substituting the equations for C and S, we have:

T = 0.10V + 20H

Therefore, the equation representing the total cost of getting the computer fixed is:

T = 0.10V + 20H, where V represents the value of the computer in dollars, and H represents the hours of service.

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Answer:

Z+12a−z+8+12−+8

Step-by-step explanation:

Z+8−6(z−2a)+5z

+8−6(−2)+5

Z+8−6(−2a+z)+5z

+8−6(−2+)+5

Z+8−6(−2a+z)+5z

+8−6(−2+)+5

Z+8+12a−z+8+12−

Answer:

Z + 8 + 12a − z

12a + 8

Step-by-step explanation:

The required slope of the line through the points (-6, 3) and (-7,-4) is m = 7.

Given that,
To determine the slope of the line through the points (-6, 3) and (-7,-4).

The slope of the line is a tangent angle made by line with horizontal. i.e. m =tanx where x in degrees.

Here,
The slope of the line is given by,
m = (y₂ - y₁) /  (x₂ - x₁)
Substitute the point in the above equation,
m = 3 + 4/ -6 + 7
m =7 / 1
m = 7

Thus, the required slope of the line through the points (-6, 3) and (-7,-4) is m = 7.

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Answer:

Step-by-step explanation:

To express the confidence interval 0.039 < p < 0.479 in the form p ± E, we need to find the midpoint of the interval and half of the width.

The midpoint of the interval is the average of the lower and upper bounds:

Midpoint = (0.039 + 0.479) / 2 = 0.259

The width of the interval is the difference between the upper and lower bounds:

Width = 0.479 - 0.039 = 0.44

Half of the width is obtained by dividing the width by 2:

Half Width = 0.44 / 2 = 0.22

Therefore, the confidence interval 0.039 < p < 0.479 can be expressed as:

p ± E = 0.259 ± 0.22

So, the correct option is:

D. 0.259 ± 0.22

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Answer:

x = 3

Step-by-step explanation:

Divide 6 on both sides to get your answer which is 3.

Answer: x=3

Step-by-step explanation:

6x=18

x=18/6

x=3

Check: 6(3) =18

The correct answer is k+3 ke-2.

To determine which formula is not equivalent to the other two, we can compare each formula step-by-step. Let's analyze each formula:

1. (-1k-3 k +3 k+ 4 ks4
2. k+3 ke-2
3. k-3 ks4

Starting with formula 1, we can see that it consists of three terms: -1k-3, k+3, and k+4ks4. Each term is separated by a space.

Moving on to formula 2, we have k+3ke-2. This formula also consists of three terms: k+3, k, and e-2. In this case, we have a variable (k) combined with two different exponents (3 and -2).

Finally, formula 3 is k-3ks4. It consists of two terms: k-3 and ks4. Again, each term is separated by a space.

Comparing the three formulas, we can see that formula 1 has three terms, while formulas 2 and 3 have two terms each. Additionally, formula 1 includes the term k+4ks4, which is not present in formulas 2 and 3.

Therefore, the formula that is not equivalent to the other two is k+3 ke-2.

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For the Cobb-Douglas Production function to be well-behaved, a must be positive (a > 0), and b must be greater than zero (b > 0) and less than one (b < 1).

To understand the conditions for a well-behaved Cobb-Douglas production function, let's examine each property in detail. Firstly, a must be positive (a > 0) to guarantee positive output for positive inputs. Negative values of a would result in negative output, which is not desirable in a production function.

Secondly, the marginal product of x (MPx) should be positive. By taking the derivative of the production function with respect to x, we obtain MPx = \(bax^{(b-1)}\). For MPx to be positive, both a and b need to be greater than zero (a > 0 and b > 0).

Thirdly, diminishing marginal returns occur when the marginal product of x decreases as x increases. This condition is satisfied when b < 1. If b ≥ 1, the marginal product of x remains constant or increases, violating the principle of diminishing returns.

Lastly, constant returns to scale are observed when scaling up all inputs by a factor of λ results in the same factor of increase in output. This condition is met when the sum of the exponents (b) for all inputs equals 1, i.e., ∑b = 1.

In conclusion, a well-behaved Cobb-Douglas production function requires a > 0, b > 0, b < 1, and ∑b = 1. These conditions ensure positive output, positive marginal product of x, diminishing marginal returns, and constant returns to scale, making it a useful and reliable production function.

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We have to find the minimum number, k, of z in (a, b) such that g'(z) = 0. The function g is continuous on the interval [a, b] and is differentiable on (a, b). Suppose that g(x) = 0 for 4 distinct values of x in (a, b).

Let x1, x2, x3, and x4 be the four distinct values of x such that g(x) = 0.Now consider the following cases:Case 1: All four x1, x2, x3, x4 are local extrema of g(x).If this is the case, then g′(x1)=g′(x2)=g′(x3)=g′(x4)=0. Therefore, the minimum number, k, of z in (a, b) such that g′(z) = 0 is 4.Case 2:

There are less than four local extrema of g(x).In this case, by Rolle's Theorem, there exists at least one point z in (a, b) such that g′(z)=0. Since there are less than four local extrema of g(x), this point z is not equal to any of x1, x2, x3, and x4. Therefore, the minimum number, k, of z in (a, b) such that g′(z) = 0 is 1.In conclusion, the minimum number, k, of z in (a, b) such that g′(z) = 0 is either 1 or 4 depending on whether there are less than four local extrema of g(x) or all four x1, x2, x3, and x4 are local extrema of g(x).

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43% were from passing so 100% - 43% = 57% came by other means.

28 x 57% = 28 x 0.57 = 16

16 came from different means.

Answer: at 11:54

Step-by-step explanation:

Let's define the 10:30 as our t = 0 min.

We know that Train A stops every 12 mins, and Train B stops every 14 mins, they will stop at the same time in the least common multiple of 12 and 14.

To find the least common multiple of two numbers, we must do:

LCM(a,b) = a*b/GCD(a,b)

Where GCD(a, b) is the greatest common divisor of a and b.

In this case the only common divisior of 12 and 14 is 2.

So we have:

LCM(12, 14) = 12*14/2 = 84.

Then the both trains will stop 84 minutes after 10:30

one hour has 60 mins, so we can write 84 minutes as:

1 hour and 24 minutes = 1:24

Then they will stop at the same time at 10:30 + 1:24 = 11:54

Answer:

£10.1

Step-by-step explanation:

Highest exchange rate=1.3401

Lowest exchange rate=1.3199

The money Khan would have received more if he exchanged currencies at the highest rate compared to the lowest rate=500*(1.3401-1.3199)=£10.1

Answer:

110000

Step-by-step explanation:

Answer:

Step-by-step explanation:

look at picture

Based on the given information, it is not possible to determine the exact number of visitors during the fourth hour.

The scatter plot created by Fred Anderson might provide a visual representation of the relationship between the number of hours and the number of visitors, but without the actual data points or additional information, we cannot determine the specific number of visitors during the fourth hour. To find the number of visitors during the fourth hour, we would need the corresponding data point or additional information from the scatter plot, such as the coordinates or a trend line equation. Without these details, it is not possible to determine the exact number of visitors during the fourth hour.

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The x-axis is a horizontal asymptote for the function x-axis.  It can be seen that y-axis is a vertical asymptote for the function y-axis.

a. y = 4x + 1 - xGraph:

b. y = x/(x2 - 9)Graph:

c. y = x + 1/xGraph:

d. y = x2 + 1/xGraph:

e. y = (x + 1)/(5x2 + 35)Graph:

f. y = x2/(x2 + 9)Graph:

g. y = 2x - xGraph:

h. y = (x - 1)/(x2 + 5)Graph:

Curve Sketching Guideline:

The guideline on the curve sketching of the function (the curve sketching guideline) is as follows:

1. Get the Domain and Range: This is the first move in a curve sketching task.

2. Determine the x-intercept(s) and y-intercept(s): This is the second step in the curve sketching guide.

3. Get the First Derivative: To sketch a curve, you'll need to get the first derivative of a function.

4. Solve for critical points: After taking the first derivative, you will find the critical points of the function.

5. Find the second derivative: The second derivative of a function helps to determine the extreme points.

6. Find Extreme Points: We can determine the relative minima, maxima, and points of inflection by analyzing the second derivative.

7. Plot Points and Sketch Graph: After determining all of the critical points, extreme points, and inflection points, we can plot them and sketch the graph.

The function is continuous if the limits at the endpoints exist and are finite.

The curve begins to follow the graph from the left and right of the asymptotes, and if the graph crosses the asymptote, it does so at a point infinitely far away.

This means that the x-axis is a horizontal asymptote for the function x-axis.  It can be seen that y-axis is a vertical asymptote for the function y-axis.

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The least number of seats the manger could order to 270 seats

The information that the the seats are sold only in groups of 10 will help to know that the order will be in a multiple of 10.

The manager wants to order 267 seats and this is not a multiple of 10 the nearest multiple of 10 is 270.

This is because, 260 will be short of want the manager want however ordering for 270 will be in excess with three seats.

Hence the manager will order 270 and heave 3 extra seats

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Answer:

( 3 - 3 )

Step-by-step explanation:

I search up all my the questions people ask me and make sure they are %100 percent correct. If any other questions, ask right away. Have a good night.

Answer:

The Correct Answer is A

4.45 + 1.05x <= 15

Step-by-step explanation:

Answer:

4.15x + 0.85x <- 15

Step-by-step explanation:

Got it wrong on the test and it said this was the right answer.

Answer:

25+z

Step-by-step explanation

the sum is adding them?

The sum of the number 25 and the letter will be (25 + z).

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

PEMDAS rule means for the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.

The sum of the number 25 and the letter is given by putting the plus sign between the number 25 and the letter z. Then the expression will be

⇒ (25 + z)

The sum of the number 25 and the letter will be (25 + z).

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Answer:

1. 50 km/h

2. 900 km/h

3. 3 hours

Step-by-step explanation:

1. The distance the car travels, Δd = 300 km

For how long it takes the car to travel the 300 km, Δt = 6 hours

Average speed, \(\overline v\), is given as follows;

\(\overline v = \dfrac{The \ total \ distance }{The \ total \ time \ it \ takes } = \dfrac{\Delta d}{\Delta t}\),

\(\therefore \overline v = \dfrac{300 \ km}{6 \ hours} = 50 \ \dfrac{km}{hour}\)

The average speed of the car, \(\overline v\) = 50 km/h

2. The distance the jet plane flies, d = 8,100 km

For how long it takes the the jet plane to fly the 8,100 km, t = 9 hours

The speed, v, of the jet plane is given as follows;

\(Speed, \ v = \dfrac{Distance}{Time} = \dfrac{d}{t}\)

\(v = \dfrac{The\ distance \ the \ jet plane \ flies}{The \ time \ it \ takes \ to \ fly \ thart \ distance } = \dfrac{d}{t }\),

\(\therefore v = \dfrac{8,100 \ km}{9 \ hours} = 900 \ \dfrac{km}{hour}\)

The speed of the jet plane, v = 900 km/h

3. The speed of the storm, v = 20 km/h

The distance of the storm from the house, d = 60 km

The time 't' it takes the storm to reach the house is given as follows;

\(Speed, \ v = \dfrac{d}{t}\)

Therefore, by cross multiplying and dividing by 'v', we get;

\(Time, \ t = \dfrac{d}{v}\)

Plugging in the known values of 'd' and 'v' gives;

\(Time, \ t = \dfrac{60 \ km}{20 \ \dfrac{km}{hour} } = 3 \ km \times \dfrac{hour}{km} = 3 \ hours\)

The time it takes the storm to reach the house, t = 3 hours.

Answer:

1.7

Step-by-step explanation:

The base is the thing(s) that are not the powers (exponents)