Rolando is making buttons that are shaped like circles. Each button has an area of

36 square centimeters. Which measurement shows the circumference of each of the buttons in centimeters?

The possible values for x that make the statement true are x = -1 or x = 1.5.

Let's solve the equation step by step to find the possible values for x. We start with the given equation:

5.6 = 3.1 - 12.5|1 - 0.8x|

We can begin by isolating the absolute value expression:

2.5 = -12.5|1 - 0.8x|

Next, divide both sides of the equation by -12.5:

-0.2 = |1 - 0.8x|

Now we have two cases to consider, one where the absolute value is positive and another where it is negative.

Case 1: 1 - 0.8x is positive:

-0.2 = 1 - 0.8x

Solving this equation:

-0.8x = -1.2

x = 1.5

Case 2: 1 - 0.8x is negative:

-0.2 = -(1 - 0.8x)

Solving this equation:

0.2 = 1 - 0.8x

-0.8x = -0.8

x = -1

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There are 105 people in total. Given that there are 7 men, 7 wives, and each couple has 7 children, we can calculate the total number of people by summing the number of men, wives, and children.

In this case, there are 7 men, 7 wives, and each couple has 7 children. The number of men and wives combined is 7 + 7 = 14. Since each couple has 7 children, there are 7 children for each couple, resulting in a total of 7 x 7 = 49 children. Therefore, the total number of people is 14 (men and wives) + 49 (children) = 63. Including the original 7 men and 7 wives, the grand total is 63 + 7 + 7 = 77 people.

To break down the calculation further, we can analyze each category. There are 7 men, and each man is married to one wife. Therefore, there are 7 wives. Each couple has 7 children, so for the 7 couples, there are 7 x 7 = 49 children. Combining the men, wives, and children, we have 7 + 7 + 49 = 63 people. Adding the original 7 men and 7 wives, the grand total is 63 + 7 + 7 = 77 people.

With 7 men, 7 wives, and each couple having 7 children, there are a total of 105 people. The calculation includes the men, wives, and children, resulting in a total of 63 people. Including the original 7 men and 7 wives, the final count is 77 people.

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Given, Completing one house always takes 200 days of labor. To find, Let the time taken by one person to complete one house be 't' days. We know that; Work = Time × Rate of Work

The work required to complete one house is 1 (as they need to construct only one house).The rate of work is the number of houses constructed by all the people in one day. Therefore, if 'n' people are working, then their combined rate of work is 1/200.

We have only one person working here, so his rate of work is 1/t.

Therefore, we get;1/200 = 1/t

⇒ t = 200

Therefore, it will take one person 200 days to complete one house.

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|^(t)) = exp(-iHt) |1^(0)),To find the matrix representation of the Hamiltonian for a three-state system with basis states |1), |2), and |3), we need to define the Hamiltonian operator and its matrix elements.

Let's assume the Hamiltonian operator is represented as H, and its matrix elements are denoted as H_ij, where i and j represent the basis states. The matrix elements can be found using the following rules:

H_ij = <i|H|j>

Given that the basis states are |1), |2), and |3), and assuming the Hamiltonian is time-independent, we can represent the matrix elements as follows:

H_11 = <1|H|1>

H_12 = <1|H|2>

H_13 = <1|H|3>

H_21 = <2|H|1>

H_22 = <2|H|2>

H_23 = <2|H|3>

H_31 = <3|H|1>

H_32 = <3|H|2>

H_33 = <3|H|3>

To find the state |^(t)), we need to apply the time evolution operator exp(-iHt) to the initial state |1^(0)) = |2).

|^(t)) = exp(-iHt) |1^(0))

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The upthrust on the object would be 5N.

Given data:

One quarter of the object is submerged under water, the volume of water displaced is one quarter of the object's total volume.

According to Archimedes' principle, the upthrust is equal to the weight of the water displaced.

Weight of the fluid displaced = (1/4) * Weight of the object

= (1/4) * 20N

= 5N.

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The mean height of the players on the girls' basketball team, rounded to the nearest whole number, is 68 inches.

The mean height of the players on the girls' basketball team, rounded to the nearest whole number, is X inches.

To find the mean height, we sum up the heights of all the players and divide it by the total number of players.

Given the heights of the players: 66, 68, 69, and 70 inches, we can calculate the mean height.

66 + 68 + 69 + 70 = 273

Next, we divide the sum of the heights by the total number of players, which is 4 in this case.

273 / 4 = 68.25

Rounding the mean height to the nearest whole number, we get X = 68 inches.

Therefore, the mean height of the players on the girls' basketball team, rounded to the nearest whole number, is 68 inches.

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the value of f is 70, g is 50 and h is 30. So, correct option is

c

We know that sum of all angles of a triangle is 180°.

So, h + 20 + 130 = 180

h + 150 = 180

h = 180 - 150

h = 30

We know that straight line make an angle of 180°

130 + g = 180

g = 180 - 130

g = 50

g + f + 60 = 180

50 + f + 60 = 180

f + 110 = 180

f = 180 - 110

f = 70

Therefore, the value of f is 70, g is 50 and h is 30. So, correct option is

c

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Given question is incomplete, the complete question is below

Find the values of angles h, f, and g

It will take Julia and Natalie 9 hours to be 162 miles apart.

The two women left the coffee shop at the same time, but went in opposite directions.

One of the easiest ways to solve this problem is to figure out how far apart they move in one hour, and then calculate how long it will take them to move 162 miles apart.

The distance that they move apart in one hour is simply the sum of the distances that they each travel,

or: Distance apart after 1 hour = (6 mph + 12 mph) x 1 hour = 18 miles/hour

This tells us that they move 18 miles further apart for each hour that passes.

To find out how many hours it will take for them to be 162 miles apart, we need to divide the total distance they need to move apart (162 miles) by the distance they move apart each hour (18 miles/hour):

Time until 162 miles apart = 162 miles ÷ 18 miles/hour

= 9 hours

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Histograms and summary statistics are tools used to summarize and analyze data. They provide a visual representation and numerical summary of the distribution of a variable or set of data.

In the context of baseball players and their number of hits in a season, histograms and summary statistics can help identify patterns, measure central tendency, and assess the variability of the data. To summarize the data using histograms and summary statistics for the number of hits in the season by baseball players in two leagues, follow these steps:

Collect the data on the number of hits for each player in each league.

Create separate histograms for each league, with the number of hits on the x-axis and the frequency or count of players on the y-axis. The histograms will visually represent the distribution of hits in each league.

Calculate summary statistics for each league, including measures of central tendency (such as mean or median) and measures of variability (such as standard deviation or range). These statistics will provide numerical summaries of the data for each league.

Compare the histograms and summary statistics between the two leagues to identify any differences or similarities in the number of hits by baseball players.

Use the histograms and summary statistics to gain insights into the performance and distribution of hits in each league, potentially identifying league-specific trends or patterns.

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Answer:

the answer is D

Step-by-step explanation:

A. since 2 is greater than -4, this is not correct

B. since -1/3  is greater than -1/6, this is also not correct

C. Here, 3/10 = 0.3 and 1/4 = 0.25 so since 0.3 is greater than 0.25, this is not correct

D.Here, the order is correct since -11/2<-0.75<-0.25<11/2

E.Here, -3/4 is greater than -3, so this order is also not correct

b = -15.

Thus, for any value of a = 6 and b = -15, any value of x would be a solution of the equation 3(2x-5) = ax + b.

To find the values of a and b for which any value of x would be a solution of the equation 3(2x-5) = ax + b, we need to consider the properties of the equation.

In the equation 3(2x-5) = ax + b, the left side represents a linear expression that simplifies to 6x - 15. We can equate this to the right side, ax + b.

So, we have the equation 6x - 15 = ax + b.

For any value of x to be a solution, the left side and the right side of the equation should always be equal, regardless of the value of x.

To achieve this, we need the coefficients of x to be equal on both sides of the equation. This means that the coefficient of x on the left side (which is 6) should be equal to the coefficient of x on the right side (which is a).

Therefore, a = 6.

Additionally, the constant term on the left side (-15) should be equal to the constant term on the right side (which is b).

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La function f(x) = x^2 - 1 se puede evaluar para los valores de x desde -3 hasta 3 sustituyendo cada valor en la expresión y calculando el resultado. Aquí están los cálculos para cada valor:

Para x = -3: f(-3) = (-3)^2 - 1 = 9 - 1 = 8

Para x = -2: f(-2) = (-2)^2 - 1 = 4 - 1 = 3

Para x = -1: f(-1) = (-1)^2 - 1 = 1 - 1 = 0

Para x = 0: f(0) = (0)^2 - 1 = 0 - 1 = -1

Para x = 1: f(1) = (1)^2 - 1 = 1 - 1 = 0

Para x = 2: f(2) = (2)^2 - 1 = 4 - 1 = 3

Para x = 3: f(3) = (3)^2 - 1 = 9 - 1 = 8

Entonces, los valores de la function f(x) = x^2 - 1 para x En el rang de -3 a 3 son: 8, 3, 0, -1, 0, 3, 8 respectivamente.

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The blimp will be directly overhead of Ethan in 9.94 minutes.

To determine how long it will take for the blimp to be directly overhead of Ethan, we can use the information about the blimp's altitude and speed.

First, let's find the horizontal distance covered by the blimp in the time it takes to be directly overhead. Since the blimp is moving at a speed of 15 mph, we need to convert this to feet per minute:

15 mph * (5280 ft / 1 mile) * (1 hour / 60 minutes) = 1320 ft/minute

So, the blimp is moving at a rate of 1320 feet per minute horizontally.

Now, let's calculate the vertical distance the blimp needs to cover to be directly overhead of Ethan. This is equal to the altitude of the blimp, which is given as 1150 feet.

Since Ethan is looking up at an angle of 5 degrees, we can use trigonometry to find the horizontal distance covered by the blimp when it reaches the altitude of 1150 feet.

tan(5 degrees) = vertical distance / horizontal distance

We want to solve for the horizontal distance, so rearranging the equation:

horizontal distance = vertical distance / tan(5 degrees)

horizontal distance = 1150 ft / tan(5 degrees)

Using a calculator, we find:

horizontal distance ≈ 13129.01 ft

Now, we can determine the time it takes for the blimp to cover this horizontal distance at a rate of 1320 feet per minute:

time = horizontal distance / rate

time = 13129.01 ft / 1320 ft/minute

Calculating this, we get:

time ≈ 9.94 minutes

Therefore, the blimp will be directly overhead of Ethan in approximately 9.94 minutes.

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The reaction of 2.00 mol of oxygen with gaseous ammonia produces a certain amount of nitrogen monoxide gas. The moles of nitrogen monoxide produced can be calculated using stoichiometry.

To determine the moles of nitrogen monoxide produced, we need to use the balanced chemical equation for the reaction between gaseous ammonia (NH₃) and oxygen (O₂):

4 NH₃ + 5 O₂ → 4 NO + 6 H₂O

From the balanced equation, we can see that 4 moles of NH₃ react with 5 moles of O₂ to produce 4 moles of NO. This means that the ratio between O₂ and NO is 5:4.

Given that we have 2.00 mol of O₂, we can set up a proportion to calculate the moles of NO produced:

(2.00 mol O₂) / (5 mol O₂) = (x mol NO) / (4 mol NO)

Cross-multiplying the equation, we get:

5x = 8

Solving for x, we find that x = 8/5 = 1.6 mol NO.

Therefore, the moles of nitrogen monoxide produced by the reaction of 2.00 mol of oxygen is 1.6 mol NO.

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The actual distance between Cucumber City and Pickleville is 70.4 miles.

To find the actual distance between Cucumber City and Pickleville, we can use the given scale on the map and set up a proportion.

According to the map scale, 2.5 inches represents 22 miles. This means that for every 2.5 inches on the map, the actual distance in the real world is 22 miles.

Let's denote the actual distance between Cucumber City and Pickleville as 'x' miles. We know that on the map, these two cities are 8 inches apart.

Using the proportion:

(2.5 inches) / (22 miles) = (8 inches) / (x miles)

2.5 inches * x miles = 8 inches * 22 miles

2.5x = 8 * 22

2.5x = 176

x = 176 / 2.5

x = 70.4

Therefore, the actual distance between Cucumber City and Pickleville is 70.4 miles.

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When a store advertises sales on different combinations of goods, they are engaging in price discrimination. In this case, the holiday store is practicing second-degree price discrimination because it has different prices for different quantities of bows and wrapping paper.

According to the signs in the store, there are two different deals on bows and rolls of wrapping paper. One sign says that one bow and one roll of wrapping paper can be purchased for $6.00. This means that the store is offering a bundle deal that gives a discount if you purchase both items together. The second sign offers five bows and one roll of wrapping paper for $10.00.

This means that the store is offering an even larger discount for customers who purchase a larger quantity of bows.The fact that the store is offering different prices based on the quantity of goods purchased is an example of price discrimination. Specifically, the store is practicing second-degree price discrimination because it is offering different prices for different quantities of goods.

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The question asks about the recovery time for a randomly selected patient from a surgical procedure. This recovery time follows a normal distribution with a mean of 4 days and a standard deviation of 1.9 days.

To answer questions about probabilities or specific values of the recovery time, we can use the properties of the normal distribution.

Standardize the variable: Convert the recovery time value (X) into a standard score or z-score using the formula: z = (X - μ) / σ, where μ is the mean and σ is the standard deviation.

Use the standard normal distribution table or a calculator to find the corresponding probability or value associated with the standardized z-score.

For example, if you want to find the probability that a randomly selected patient has a recovery time less than a certain number of days (X), you would calculate the z-score, look up the corresponding probability in the standard normal distribution table, and round the answer to four decimal places.

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The function that represents the amount of money the student saves after x months is y = 12x + 15.

In the given scenario, the student initially has $15. Every month, the student saves an additional $12. This means that the amount of money saved after x months can be calculated by multiplying the number of months (x) by the monthly savings of $12 and adding the initial amount of $15. Therefore, the function y = 12x + 15 represents the amount of money (y) the student saves after x months. For example, after 3 months, the student would have saved $12 * 3 + $15 = $51. The function allows for easy calculation of the savings based on the number of months elapsed.

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To answer this question, we need to recall that the dimensions of a rectangle are its length and width. Multiplying all of the dimensions of rectangle A by 7 will result in a new rectangle with larger dimensions.

The length and width of the new rectangle will be 7 times the original length and width, respectively. The area of the new rectangle will be 49 times the area of the original rectangle. The long answer is as follows:Let's assume that the length and width of rectangle A are l and w, respectively. Therefore, the area of rectangle A is given by A = l × w. Now, if we multiply all of the dimensions of rectangle A by 7, we get a new rectangle with length 7l and width 7w.

The area of the new rectangle is given by A' = 7l × 7w = 49lw. Therefore, the area of the new rectangle is 49 times the area of the original rectangle. This makes sense because multiplying the dimensions of a shape by a factor of k increases its area by a factor of k². In this case, k = 7, so the area of the new rectangle is increased by a factor of 7² = 49.

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A ​4-ft vertical post casts a 10​-in shadow at the same time a nearby cell phone tower casts a 120​-ft shadow. The height of the cell phone tower is 576 ft.

To calculate the height of the cell phone tower, we will use proportions. We know that the height of the 4-ft post is proportional to the height of the cell phone tower. The ratio of the heights will be the same as the ratio of their shadows. This gives us the following proportion:

height of post / length of post shadow = height of cell phone tower / length of cell phone tower shadow

Let's plug in the given values and solve for the height of the cell phone tower:

4 ft / 10 in = height of cell phone tower / 120 ft

First, we need to convert the units to be consistent. Let's convert 4 ft to inches:4 ft = 48 in

Now, we can substitute the values and solve for the height of the cell phone tower:

48 in / 10 in = height of cell phone tower / 120 ft4.8

= height of cell phone tower / 120 ftheight of cell phone tower

= 4.8 * 120 ft

height of cell phone tower = 576 ft

Therefore, the height of the cell phone tower is 576 ft.

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For a distribution that is skewed right, the median is typically less than the mean and is located to the left of the distribution's peak.

It represents the middle value when the data is arranged in ascending order and is less affected by extreme outliers compared to the mean. The median provides a measure of central tendency that is more representative of the "typical" value in a positively skewed distribution.

In a skewed right distribution, the tail of the distribution extends towards the higher values. This indicates that there are relatively more lower values and fewer higher values in the dataset. As a result, the mean is pulled towards the higher values, making it larger than the median.

The median, on the other hand, represents the middle value in the dataset when arranged in ascending order. It is less sensitive to extreme outliers compared to the mean because it focuses on the middle value rather than the overall distribution. Therefore, in a skewed right distribution, the median tends to be smaller than the mean and is located to the left of the peak of the distribution.

The use of median in a skewed right distribution helps provide a more robust measure of central tendency, as it is less influenced by extreme values and better represents the typical value in the data.

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The mean longevity of people in the region is approximately 82.336 years, as calculated by finding the z-score corresponding to the 30th percentile and using the formula for a normal distribution.

Given that the longevity of people in the region is normally distributed with a standard deviation of 14 years, we can determine the mean longevity by finding the z-score corresponding to the 30th percentile.

To find the z-score, we look up the corresponding value in the standard normal distribution table. The 30th percentile corresponds to a z-score of approximately -0.524.

Using the formula for a normal distribution:

z = (x - μ) / σ

Where z is the z-score, x is the value, μ is the mean, and σ is the standard deviation.

Rearranging the formula to solve for the mean, we have:

μ = x - (z * σ)

Substituting the known values, we get:

μ = 75 - (-0.524 * 14)

μ ≈ 75 + 7.336

μ ≈ 82.336

Therefore, the mean longevity of people in the region is approximately 82.336 years.

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In order to determine the number of cars that were residents with a Green Key and the number of cars parked without the Green Key, we will use the following formula:

Let x be the number of residents with a Green Key who parked. Let y be the number of cars that parked without a Green Key.

We can set up two equations based on the information given in the problem:

x + y = 10,867 (the total number of cars parked in the lot)  

9x + 20y = 169,820 (the total amount of money collected)

Solve for x using the first equation:

x + y = 10,867

x = 10,867 - y

substitute this value for x in the second equation

and solve for y:

9x + 20y = 169,8209(10,867 - y) + 20y

= 169,82097,803 - 9y + 20y

= 169,82011y

= 72,017y

= 6557.909

We can round this number to 6558 since you cannot park a fraction of a car.

So, approximately 6558 cars are parked without a Green Key.

To find the number of residents with a Green Key who parked, we can substitute y = 6558 into the equation:

x + 6558 = 10,867x

= 10,867 - 6558x

= 4309

So, approximately 4309 cars parked that were residents with a Green Key, while approximately 6558 cars parked without the Green Key.

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The article about endangered species occupies approximately 1/2 of the cover page.

To determine the portion of the cover page occupied by the article about endangered species, we need to calculate the product of the fractions representing the text and photographs.

First, we find the portion of the cover page occupied by text: 3/8.

Next, we find the portion of the text occupied by photographs: 2/3.

To find the portion of the cover page occupied by the article about endangered species, we multiply these two fractions: (3/8) * (2/3) = 6/24 = 1/4.

Therefore, the article about endangered species occupies 1/4 of the cover page, which is equivalent to 1/2 when simplified.

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The area of triangle OBC in terms of r and θ is (1/2) * r^2 * sin(θ), which simplifies to (1/2) * r^2.

To find the area of triangle OBC in terms of r and θ, we can utilize the formula for the area of a triangle: Area = (1/2) * base * height. In this case, the base of the triangle is the side BC, which has a length equal to r, and the height is the perpendicular distance from point O to side BC.

Considering that point O is the origin (0,0) and point B is located on the positive x-axis, the distance from the origin to the line BC is equal to the radius r. Thus, the height of the triangle is r.

To find the angle θ between the positive x-axis and the line BC, we can use trigonometry. Since the line BC forms an angle of θ with the positive x-axis, the perpendicular from point B to the x-axis creates a right triangle. Therefore, sin(θ) can be determined by dividing the height of the triangle (r) by the hypotenuse (also r), resulting in sin(θ) = r/r = 1.

Substituting the values into the formula for the area of a triangle, we have Area = (1/2) * r * r * 1 = (1/2) * r^2.

Therefore, the area of triangle OBC in terms of r and θ is (1/2) * r^2 * sin(θ), which simplifies to (1/2) * r^2.

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SO, 3 is the value of x and y for triangle RSTU.Given, RSTU and MNOP are similar triangles. We are to find the scale factor of RSTU to MNOP and then find the values of x and y.

In similar triangles, the ratio of the corresponding sides are equal.

Let us find the scale factor of RSTU to MNOP by comparing the corresponding sides.

Scale factor RSTU to MNOP = RT/MN

We have RT = 4x - 10, and

MN = 2x + 5.

So,RT/MN = (4x - 10) / (2x + 5)

= 2(2x - 5) / (2x + 5)

The scale factor of RSTU to MNOP is 2(2x - 5) / (2x + 5).

For x and y, we need to find the value of x and y for triangle RSTU.

Let us write the corresponding sides and their ratios.

RT/PN

= 4x - 10 / 2y + 3RS/MP

= 6x - 7 / 4y - 5RU/PO

= 5x - 7 / 4y + 2

Since RSTU and MNOP are similar, the ratio of corresponding sides should be equal.

Hence,

4x - 10 / 2y + 3

= 6x - 7 / 4y - 54x - 10 * 4y - 5

= 2y + 3 * 6x - 7 * 4y - 54x - 10 * 4y - 5 + 2y + 3 * 4y - 5

= 6x - 7 * 2y + 3-8y - 15

= 6x - 14y - 4y - 8y - 15 - 3

= 6x - 14y - y-8y - 18

= 6x - 15y

Simplifying further,

6x - 15y + 8y

= 18 + 8y - 15y6x - 7y

= 3

This is the value of x and y for triangle RSTU.

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Here's an explanation to help you understand the problem. Remy stands on the dock represented by point C. He plans to swim from C to A, then from A to B, and then from B back to C. Now, from Remy to the swim route AB¯¯¯¯¯¯¯¯, the shortest distance is 60 meters, which is measured from C to D.

From the diagram ,AC = x meters and BD = y meters Since Remy swims from C to A and then to B, he swims a distance equal to AB. Thus, the total distance that he swims can be given as follows: AB + BA + BC, where BA is equal to 2x, and BC is equal to 2y.Then, the distance that Remy swims can be given by AB + 2x + 2yNow, we know that Remy swims from C to D at a distance of 60 meters. Therefore, we can represent x in terms of y using the Pythagorean theorem as shown below:x² + y² = 60² ... (Equation 1)Also, we know that Remy plans to swim back to point C. Therefore, the total distance that he will swim is given by: AB + 2x + 2y + AC Substituting AB with 2x, we have:4x + 2y + AC ... (Equation 2)Also, substituting Equation 1 into Equation 2, we get:4x + 2y + √(3600 - y²)Simplify the expression by multiplying both sides by 2:8x + 4y + 2√(3600 - y²)Now, substituting 2x with AB and 2y with BD, we get:2(AB) + AB + 2(BD) + BD + 2√(3600 - y²)Simplify the expression:4AB + 4BD + 2√(3600 - y²)Therefore, the total distance that Remy swims is equal to:4AB + 4BD + 2√(3600 - y²)Therefore, the correct answer is 4AB + 4BD + 2√(3600 - y²).

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The required potters purchased 33 cans of Pepsi.

The potters purchased a total of 50 cans of soda.

34% of the purchased soda was Coke.

To find the number of cans of Pepsi purchased, we need to subtract the number of Coke cans from the total number of cans.

Number of Coke cans = 34% of 50 cans = 0.34 * 50 = 17 cans

Number of Pepsi cans = Total number of cans - Number of Coke cans

Number of Pepsi cans = 50 cans - 17 cans

Number of Pepsi cans = 33 cans

Therefore, the potters purchased 33 cans of Pepsi.

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It is not sensible to measure a football pitch in nanometres because they  are extremely small units of length which are typically used to measure particles or atomic structures.

Nanometres are a billion times smaller than a meter making them unsuitable for measuring macroscopic objects like a football pitch. Football pitches are typically measured in meters or yards which provide a more appropriate scale for their size.

Nanometres are better suited for measuring things on a molecular or atomic level such as the size of nanoparticles or the spacing between atoms. Attempting to measure a football pitch in nanometres would not only be impractical but also misleading as it would not accurately reflect the dimensions of the pitch in a meaningful way.

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[tex]n^{th}\textit{ term of an arithmetic sequence} \\\\ a_n=a_1+(n-1)d\qquad \begin{cases} a_n=n^{th}\ term\\ n=\textit{term position}\\ a_1=\textit{first term}\\ d=\textit{common difference}\\[-0.5em] \hrulefill\\ a_1=-13\\ d=4\\ n=27 \end{cases} \\\\\\ a_{27}=-13+(27-1)4\implies a_{27}=-13+104\implies a_{27}=91[/tex]