Please help this too

The study is classified as an observational study, and the problem is given as follows:

A.

This is a convenience sample with voluntary​ response, which has a high chance of leading to bias.

Experiments are studies in which there are two groups, with different features, and then the effect of a feature is studied.

For an observational study, there are no changes, just a question is asked, as is the case for this problem.

Convenience samples lead to bias as many people that share characteristics can answer.

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Answer:

John is 19 and Ann 26

Step-by-step explanation:

to be for real i just counted

Answer:

Lo siento, como modelo de lenguaje de IA, no tengo la capacidad de visualizar o dibujar gráficos. ¿Puedo ayudarte con algo más?

The length of the guy wire to the nearest foot would be = 10 ft.

The relationship between the tower, guy wire and pole forms the shape of a right angle triangle.

The distance from the stake to the pole (opposite) =a = 5 ft

The distance from the pole to the tower (adjacent) =b= 9ft

The length of the guy wire= c = X

Using the Pythagorean formula:

c² = a² + b²

c² = 5² + 9²

c² = 25+81

c² = 106

C = √106

C= 10 ft ( to the nearest foot)

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Complete question:

A guy wire runs from the top of a cell tower to a metal stake in the ground. Sophie places a 7 ft tall pole to support the guy wire. After placing the pole, Sophie measures the distance from the stake to the pole to be 5 ft. She then measures the distance from the pole to the tower to be 9 ft. Find the length of the guy wire, to the nearest foot.

Answer:

me too (help)

Step-by-step explanation:

Im not fully sure but it might be the 3rd one!

Answer:

8 hours

Step-by-step explanation:

To solve for the number of hours (h) Jessica paid, we can use this expression:

We do this because in order to find the total number of hours spent renting the bike, we need to take the total amount of money spent and subtract the fixed fee from it. Then, we divide by 6 to get the total number of hours spent.

Solving what is in the parenthesis:

Therefore, Jessica spent 8 hours renting the bike.

Answer:Hello!-47 s the answer :)

Step-by-step explanation:

a. To find the number of trout in 2.5 months, we can substitute n = 2.5 into the given equation:

T = 1800 (1.15)^n

T = 1800 (1.15)^2.5

T ≈ 2708.67

Therefore, there will be approximately 2,709 trout in the lake after 2.5 months.

b. To find the number of trout 2 months before the season opened, we need to use a negative value of n that represents the time before the start of the trout season. If we assume that the start of the season is month 0, then 2 months before the start of the season would be month -2. Thus, we can substitute n = -2 into the given equation:

T = 1800 (1.15)^n

T = 1800 (1.15)^(-2)

T ≈ 980.92

Therefore, there were approximately 981 trout in the lake 2 months before the start of the trout season.

The required horizontal and vertical asymptote is x = 2, -2, and y = 1/4.

To find the vertical asymptotes of the given rational function, we need to look for values of x that make the denominator zero, since division by zero is undefined.

The denominator of the function is 4(x-2)(x+2), so the vertical asymptotes occur at x = 2 and x = -2. Therefore, the vertical asymptotes are:

x = 2, -2

To find the horizontal asymptote, we can use the fact that as x goes to positive or negative infinity, the function approaches the ratio of the leading coefficients of the numerator and denominator.

In this case, the leading term in the numerator is x² and the leading term in the denominator is 4x². Therefore, as x approaches positive or negative infinity, the function approaches:

y = (x² / 4x²) = 1/4

So, the horizontal asymptote is:

y = 1/4

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Answer:

C 38.1 ft hope this helps

Answer:Hence, there are 1200 1200 1200 stiches per minute.

Step-by-step explanation:

Here are the possible outcomes of randomly drawing two marbles from the bag:

O, G

O, B

G, O

G, B

B, O

B, G

There are six possible outcomes in total, each with an equal chance of occurring. Therefore, the theoretical probability of drawing an orange marble and a green marble from the bag is 1/6 or approximately 0.167.

The standard deviations of the data are different.

The formula used to calculate the standard deviation of data is given by

x - mean of the data and n = number of observations

Here we have

(a) 4, 5, 11, 13, 13, 14

Mean of the data = [4 + 5 + 11 + 13 + 13 + 14 ]/6 = 60/6 = 10

On calculating deviations

=> ∑(x[tex]_{i}[/tex] - x)² = 96

=> √[ ∑(x[tex]_{i}[/tex] - x)²/n ] = √[ 96/ 6 ] = 4    

(b) 5, 7, 10, 10, 13, 15

Since the mean of the data is equal for all  

On calculating deviations

=> ∑(x[tex]_{i}[/tex] - x)² = 68

=> √[ ∑(x[tex]_{i}[/tex] - x)² /n ] = √[ 68/ 6 ] = 3.36

(c) 3, 10, 11, 11, 12, 13

On calculating deviations

=> ∑(x[tex]_{i}[/tex] - x)² = 64

=> √[ ∑(x[tex]_{i}[/tex] - x)² /n ] = √[ 64/ 6 ] = 3.26  

Therefore,

The standard deviations of the data are different.

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The Slope of the line is 1.

The slope of a line is a numerical value that shows the stiffness or direction of the line. The formula used to find the Slope of the line is given by  

Where (x₁, y₁) and (x₂, y₂) are pairs of points that pass through the line.

Here we have

The pair of points (-6, -5) and (-4, -3)

By using the formula,

The slope of the line = [ y₂ - y₁] / [ x₂ - x₁]

= [ -3 - (-5) ] / [ -4 - (-6) ]

= [ -3 + 5 ]/ [ -4 + 6 ]

= [ 2/2] = 1

Therefore

The Slope of the line is 1.

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240 more residents have an occupation in industry than have an occupation in government. The solution has been obtained by using arithmetic operations.

It is believed that the four fundamental operations, often referred to as "arithmetic operations", can describe all real numbers. The four mathematical operations that produce the quotient, product, sum, and difference are divide, multiply, add, and subtract.

We are given a graph determining the types of occupations of the 1,200 residents of a town.

Percentage of residents having occupation in government is:

100% - 25% - 15% - 25% - 30% = 5%

Number of residents having occupation in industry is as follows:

25% of 1200 = 300

Similarly, number of residents having occupation in government is:

5% of 1200 = 60

Number of more residents that have occupation in industry than have an occupation in government is:

300 - 60 = 240

Hence, 240 more residents have an occupation in industry than have an occupation in government.

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The circle graph was missing in the question which has been attached below.

Answer:

best of my knowledge hope its right -4

Step-by-step explanation:

The requried, Liam is 24 blocks away from his house.

The graph is a demonstration of curves that gives the relationship between the x and y-axis.

Here,
A graph is shown, Liam left his house and drove to the store. He stopped and went inside. From there, he drove in the same direction until he got to the bank. He stopped and went inside the bank. Then he drove home. The graph below shows the number of blocks away from home Liam is x minutes after he left his house until he got back home.

In order to calculate Liam's distance after x = 15 minutes. Draw a perpendicular at x = 15 that intersects the curve. Since the line intersects the curve at y = 24. This implies that Liam is 24 blocks away from his house.

Thus, the requried Liam is 24 blocks away form his house.

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The next number is 47, 1, and 27  in the sequence.

A number series is a sequence of numbers. To answer the questions regarding number series, we must first establish the rules that lead to the production of a number series.

The reverse of 63 is 36.

The sum of the digits of 63 is 6 + 3 = 9.

So, the following number is 36 + 9 = 45, followed by the next odd number, 47. Hence the following number is 47.

The reverse of 00 is 00.

The sum of the digits of 00 is 0 + 0 = 0.

So, the following number is 0 + 0= 0, followed by the next odd number, 0. Hence the following number is 0.

The reverse of 22 is 22.

The sum of the digits of 22 is 2 + 2 = 4.

So, the following number is 22 + 4 = 26, followed by the next odd number, 27. Hence the following number is 27.

Therefore, the next number is 47, 1, and 27  in the sequence.

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Answer:

a = 16.5

b = 8.8

Step-by-step explanation:

Answer:

The inequality that represents this relationship is:

b + a < 2b

Option C i.e. number line with closed circle on negative 2 with arrow shaded right represents the solution to the inequality.

What is inequality?

An inequality is a comparison relationship between two or more mathematical expressions.

We are given an inequality as 0.5 is greater than or equal to the product of a number and −0.25.

Let the number be x.

So, from the above information, we get the inequality as

0.5 ≥ -0.25x

Now, on solving the above inequality, we get the following

0.5 ≥ -0.25x

On multiplying by -1, we get

⇒-0.5 ≤ 0.25x

On dividing both sides by 0.25, we get

⇒-2 < x

Hence, Option C i.e. number line with closed circle on negative 2 with arrow shaded right represents the solution to the inequality.

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Answer:The quotient of 8,426 divided by 82 can be found using long division or a calculator. When rounded to the nearest hundredth, the quotient is:

102.85

Therefore, the answer is 102.85.

Step-by-step explanation:

[tex]f(x) = x^{2} -5x + 12[/tex]

The graph of the function is a parabola → true

____

[tex]f(-10) = (-10)^{2} -5(-10) + 12 = 100+50+12 = 162 \neq 82\\[/tex]

[tex]f(20) = (20)^{2} -5(20) + 12 = 400-100+12 = 312 \neq - 8\\[/tex]

[tex]f(0) = 0^{2} -5(0) + 12 = 0 - 0 + 12 = 12 \neq 0\\[/tex]

Yeah, your right the answer would be -39.1%

The percentage representation of T as part of S + T as required is; 40 percent.

As evident in the task content;

S is 150% of T.

S = 150/100 × T

S = 1.5T.

Therefore, expressing T as a percentage of S + T as required is as follows;

= (T / (S + T)) × 100%

substitute S = 1.5T into the equation

= T / (T + 1.5T) × 100%

= (1/2.5) × 100%

= 0.4 × 100%

= 40%.

Ultimately, the variable T is 40 percent of S + T.

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Answer:

30

Step-by-step explanation:

You divide the number so 10 by 9 giving you the 1% of it and then you times that number by 27 to get 27%.

Answer:

30

Step-by-step explanation:

9%*3=27%

10*3=30

or more simply what you do to one you have to do to the other.

The differential of the function is dy/dy = 6x^(1/2) + 1/2x^(-1 1/2)

From the question, we have the following parameters that can be used in our computation:

y= 4x^(3/2)+x^(1/2)

Using the first principle of differentiation, we have

dy/dy = 3/2 * 4x^(3/2 - 1) + 1/2 * x^(1/2 - 2)

Evaluate the expressions

dy/dy = 6x^(1/2) + 1/2x^(-1 1/2)

Hence, the solution is dy/dy = 6x^(1/2) + 1/2x^(-1 1/2)

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Answer:

Step-by-step explanation:

its 1