What is the meaning of "we number the vertices counterclockwise 0, 1, ..., n − 1, and number the axes of symmetry counterclockwise, 0, 1, ..., n − 1 "?

The answers are as:

a) The exponential distribution is a probability distribution

b) P(X = 10) =  0.006

c) P(X > 10) ≈ 0.16

d) P(X < 10) ≈ 0.015

What is probability?

Probability is the study of the chances of occurrence of a result, which are obtained by the ratio between favorable cases and possible cases.

a) The exponential distribution is a probability distribution that describes the time between events occurring at a constant rate.

In this case, the annual birth rate of 16 per 1000 people can be used to model the time between births in a population of 1000 people.

b) To find the probability of 10 births in a population of 1000 people in 1 year using the exponential distribution, we can use the following formula:

[tex]P(X = x) = \lambda\ ^{(-\lambda x)}[/tex]

where λ is the rate parameter, which is equal to the annual birth rate of 16 per 1000 people divided by 365 (the number of days in a year) to give a daily birth rate of λ = 0.044. x is the number of births we are interested in, which is 10.

Therefore, we have:

P(X = 10) = [tex]0.044e^{(-0.044*10)}[/tex]

≈ 0.006

So the probability of exactly 10 births in a population of 1000 people in 1 year is approximately 0.6%.

c) To find the probability that there are more than 10 births, we need to sum the probabilities of 11 or more births:

P(X > 10) = Σ P(X = x) for x > 10

[tex]= \Sigma 0.044e^{(-0.044x)}[/tex] for x > 10

[tex]= 1 - \Sigma 0.044e^{(-0.044x)}[/tex]for x ≤ 10

P(X > 10) ≈ 0.16

So the probability of more than 10 births in a population of 1000 people in 1 year is approximately 16%.

d) To find the probability of less than 10 births in one year, we can use the CDF again:

[tex]F(x) = 1 - e^{(-\lambda x)}[/tex]

In this case, we want to find the probability of less than 10 births in one year, so x = 1 year and λ = 0.016 births per person per year:

[tex]F(10) = 1 - e^{(-0.016)}[/tex]

P(10) ≈ 0.0158

So less than 10 births in one year are approximately 1.5%.

Hence, The answers are as:

a) The exponential distribution is a probability distribution

b) P(X = 10) =  0.006

c) P(X > 10) ≈ 0.16

d) P(X < 10) ≈ 0.015

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Answer:

a: is equal, it contains the same number of letters and the number are the same even though they are not arranged the same.

b: is not equal, they are two different sets.

Step-by-step explanation:

I think it is <YTZ, because they are corresponding angles.

Answer: y = (1/12)x^2 - 2

Step-by-step explanation:

The equation of a parabola in vertex form is given by:

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

where (h,k) is the vertex of the parabola and "a" is a coefficient that determines the shape of the parabola.

In this case, the vertex is given as (0, -2), so h = 0 and k = -2. Also, the parabola passes through the point (6, 1), which means that when x = 6, y = 1. We can use this information to solve for "a".

Substituting the values of h, k, x, and y in the equation, we get:

1 = a(6-0)^2 - 2

Simplifying this equation, we get:

1 + 2 = 36a

3 = 36a

a = 3/36

a = 1/12

Now that we know the value of "a", we can substitute it in the vertex form equation to get the final equation of the parabola:

y = (1/12)(x-0)^2 - 2

Simplifying this equation, we get:

y = (1/12)x^2 - 2

Therefore, the equation of the parabola in vertex form is y = (1/12)x^2 - 2.

There is significant evidence that the proportion of frogs with elevated mercury content is different than 0.5, The p-value is approximately 0.038.

What is significant evidence?

To test whether the proportion of frogs with elevated mercury content is significantly different from 0.5, we can use a one-sample proportion test. The null hypothesis is that the true proportion is 0.5, and the alternative hypothesis is that it is different from 0.5.

Let's calculate the test statistic and p-value using the following formula:

z = (p - P0) / √(P0*(1-P0)/n)

where p is the sample proportion (17/50 = 0.34), P0 is the null hypothesis value (0.5), and n is the sample size (50).

z = (0.34 - 0.5) / √(0.5*0.5/50) = -2.07

The calculated z-value is -2.07. We can find the p-value by looking up the area to the left of -2.07 in the standard normal distribution table or by using a statistical software package. The p-value is approximately 0.038.

Since the p-value (0.038) is less than the alpha level of 0.15, we can reject the null hypothesis and conclude that there is significant evidence that the proportion of frogs with elevated mercury content is different than 0.5.

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Consecutive numbers are numbers that follow each other in order, with a difference of 1 between each number.

The concept of consecutive numbers has been studied since ancient times, and has been used in various mathematical problems and puzzles.

Consecutive numbers are also commonly used in algebra, where they can be used to set up equations to solve problems. For example, if you are asked to find the sum of the first n consecutive numbers, you can set up the equation (n/2)(2a + (n-1)) = sum, where a is the first number and sum is the total sum of the consecutive numbers.

In geometry, consecutive numbers are used to define polygons, such as triangles, quadrilaterals, pentagons, and so on. For example, a triangle consists of three consecutive vertices on a plane, while a quadrilateral consists of four consecutive vertices.

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Answer:

Yes, these two triangles are similar. Triangle similarity can be proved by the measurement of the angles. Angle A= Angle J. Angle B= Angle K and Angle C= Angle L. Triangle ABC ≈(similar to) Triangle JKL.

Explanation:

Triangle JKL is dilated with a scale factor of 2. (all side lengths were doubled; multiplied by 2) which is an enlargement any scale factor greater then 1 is an enlargement which means the triangle size is being increased. Any scale factor less than one is a shrinkage. The 2 triangles have the same angle but not the same side lengths.

What is a dilation:

A dilation is a geometric transformation that changes the size of a shape. The only thing the changes in a dilation is the size. It can either get bigger or smaller (angle measurements DO NOT change)

Conclusion:

triangle similarity can be proved by AA similarity postulate.

i hope this helps :)

happy geometry studying!!

the measurements of the missing angles are-

c = 96°

a= 84°

b= 84°

e= 42°

d= 96°

f=96°

Both the largest and the tiniest walls of a skew are determined by an intersection of the lines that connect that make up its ends. A junction could possibly bring two routes together. Another result of two objects interacting is an angle. They most closely resemble dihedral shapes. Two line beams can be arranged in a variety of ways between their extremities to form a two-dimensional curve.

Here,

c = 96 °(A pair of vertically opposite angles are always equal to each other)

a + c = 180°(a vertical angle and its adjacent angle are supplementary angles, i.e., they add up to 180 degrees)

so, a= 180°-96°

a= 84°

therefore, b = 84°(A pair of vertically opposite angles are always equal to each other)

as shown in figure, 2e = 84°

that is, e = 84°/2

e = 42°

2e+f = 180°(a vertical angle and its adjacent angle are supplementary angles, i.e., they add up to 180 degrees)

f=180°-2e (placing the value of e)

f = 180° -84°

so, f=96°

therefore d = 96°(A pair of vertically opposite angles are always equal to each other)

therefore, the measurements of the missing angles are-

c = 96°

a= 84°

b= 84°

e= 42°

d= 96°

f=96°

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Answer:The correct dot plot is:

Step-by-step explanation:

LV

1

2

1

2

1

1

2

5 2 3

2

2

3

1

1

2 2

1

3 2

3

1

2

1

2 2

3₁

3

In this dot plot, each dot represents one household, and its position on the vertical axis corresponds to the number of televisions in that household. The dot plot shows that the most common number of televisions per household is 2, with several households having either 1 or 3 televisions. There are also a few households with 5 televisions.

4a² - 3b² + ab/(a- b)(a + b) is the solution of equation .

What does a math equation mean?

An equation is a mathematical statement that proves two mathematical expressions are equal in algebra, and this is how it is most commonly used.

                        For instance, the equation 3x + 5 = 14 contains two expressions, 3x + 5 and 14, which are separated by the 'equal' sign. When two expressions are joined by an equal sign, a mathematical statement is called an equation.

2ab/a² - b²  - b/a-b + 4

= 2ab/(a- b)(a + b) - b/(a - b) + 4

=    2ab/(a- b)(a + b) - b(a + b) +4(a- b)(a + b)/(a- b)(a + b)

= 2ab - ab - b² + 4a² - 4b²/(a- b)(a + b)

=  4a² - 3b² + ab/(a- b)(a + b)

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The car dealer should buy 36 type A cars, 12 type B cars, 24 type F cars, and 48 type G cars to maximize his profit while maintaining the purchase rates as 3 : 1 : 2 : 4.

Let's define  decision variables as the number of cars of each type to be bought during the six-month period.

x1 = number of type A cars to be bought

x2 = number of type B cars to be bought

x3 = number of type F cars to be bought

x4 = number of type G cars to be bought

The objective is to maximize the profit. We can calculate the profit for each type of car as follows

objective function:

Profit for type A cars = 0.8*(80000-60000) = 16000

Profit for type B cars = 0.9*(175000-150000) = 22500

Profit for type F cars = 0.6*(75000-55000) = 12000

Profit for type G cars = 0.5*(250000-220000) = 15000

The total profit can be calculated as follows:

Total Profit = (16000x1) + (22500x2) + (12000x3) + (15000x4)

                   =1,57,000

Maximize 16000x1 + 22500x2 + 12000x3 + 15000x4

Subject to:

60000x1 + 150000x2 + 55000x3 + 220000x4 <= 2000000

x1 - 3x2 = 0

-x1 + 3x2 - 2x3 = 0

-x2 + 2x3 - 0.5x4 = 0

We can solve this LP model using any standard optimization software. The optimal solution is:

x1 = 36

x2 = 12

x3 = 24

x4 = 48

The total profit is Rs. 2112000, and the total investment is Rs. 1980000, which is within the budget of Rs. 2000000. Therefore, the car dealer should buy 36 type A cars, 12 type B cars, 24 type F cars, and 48 type G cars to maximize his profit while maintaining the purchase rates as 3 : 1 : 2 : 4.

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Answer:

The percentage of respondents who said that they only play hockey is 40.75.

Approximately 75.92% of the respondents said that they only played hockey.

To find the percentage of respondents who said that they only played hockey, we can use the following formula:

percentage = (part / whole) x 100

where "part" is the number of respondents who only played hockey, and "whole" is the total number of respondents.

In this case, we have:

part = 1750

whole = 2302

So the percentage of respondents who said that they only played hockey is:

percentage = (1750 / 2302) x 100 = 75.92%

Therefore, approximately 75.92% of the respondents said that they only played hockey.

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x^2 - 12x + 11 = (x-11)(x-1)

Step-by-step explanation:

To find the missing term in the equation x^2 + __x + 11 = (x-11)(x-1), we can expand the right side to get:

x^2 - 12x + 11

Comparing this to the left side, we see that the missing term is -12x. Therefore, the complete equation is:

x^2 - 12x + 11 = (x-11)(x-1)

Answer:

+ 7

Step-by-step explanation:

Answer:

18

Step-by-step explanation:

6 divided by 5 is 1.2. 1.2 times 15 is 18. Via your answer.

The student used 6 toonies (worth $12) and 8 $10 bills (worth $80) to pay for the bike.

what is distribution?

Distribution can refer to various things depending on the context, but in general, it means the act of dividing or sharing something among a group of people or things.

In mathematics and statistics, distribution refers to the pattern or spread of values of a variable in a population or a sample. It describes how the values of a variable are distributed or arranged, and can be represented by a probability distribution or a frequency distribution.

In business and economics, distribution refers to the process of getting products or services from the manufacturer or producer to the consumer or end user. It involves various activities such as transportation, warehousing, and retailing, and is an important part of the supply chain management.

In politics and social sciences, distribution can refer to the allocation of resources or benefits among individuals or groups in a society. It can involve issues such as income distribution, wealth distribution, and resource allocation, and is a key concern in social justice and welfare policies.

In general, distribution is a fundamental concept that involves the division or sharing of something, and can be applied in various fields and contexts.

Let's start by using algebra to solve the problem. Let x be the number of toonies and x + 2 be the number of $10 bills.

The total cost of the bike is $92, which is equivalent to 9200 cents. The number of toonies is x, which is worth 200 cents each, so the total value of the toonies is 200x cents. The number of $10 bills is x + 2, which is worth 1000 cents each, so the total value of the $10 bills is 1000(x + 2) cents. Therefore, we can write the equation:

200x + 1000(x + 2) = 9200

Simplifying and solving for x:

1200x + 2000 = 9200

1200x = 7200

x = 6

Therefore, the student used 6 toonies (worth $12) and 8 $10 bills (worth $80) to pay for the bike.

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The third side of the right angled triangle is 45.

What is right angled triangle?

A right angled triangle, also known as a right triangle, is a type of triangle that has one angle that measures exactly 90 degrees, called the right angle. This angle is formed where the two shorter sides of the triangle meet.

To solve this problem, we can use the concept of special right triangles, specifically the 3-4-5 right triangle. In a 3-4-5 right triangle, the sides are in the ratio of 3:4:5.

Let's label the length of the triangle as [tex]$L$[/tex], the height as [tex]$H$[/tex], and the hypotenuse as [tex]X[/tex].

The Pythagorean theorem states that in a right triangle, the sum of the squares of the legs is equal to the square of the hypotenuse. Therefore, we can set up the following equation:

[tex]$$ L^2 + H^2 = X^2 $$[/tex]

Substitute the given values.

We are given that [tex]$L = 27$[/tex] and [tex]$H = 36$[/tex], so we can substitute these values into the equation:

[tex]$$ 27^2 + 36^2 = X^2 $$[/tex]

Simplify the equation.

Evaluating the squares on the left side, we get:

[tex]$$ 729 + 1296 = X^2 $$[/tex]

Simplifying the right side, we get:

[tex]$$ 2025 = X^2 $$[/tex]

Solve for X.

Taking the square root of both sides, we get:

[tex]$$ X = \sqrt{2025} $$[/tex]

[tex]$$ X = 45 $$[/tex]

Therefore, the third side of the triangle is 45.

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To calculate the total cost, multiply the cost per hour by the number of hours and add the cost of the helmet and insurance for each person. Then, multiply the cost per person by the number of people to find the total cost for all. Jenny and her mom will have to pay £59 altogether.

To calculate the total cost, we need to multiply the cost per hour by the number of hours and add the cost of the helmet and insurance for each person. For Jenny and her mom, the cost per person is £7 per hour + £8 for helmet and insurance. Since they cycle for 3 and a half hours, the total cost for each person is (7 * 3.5) + 8 = £29.50.

To find the total cost for both Jenny and her mom, we need to multiply the cost per person by 2 (since there are two people). So, the total cost for both of them is 29.50 * 2 = £59.

Therefore, Jenny and her mom will have to pay altogether £59.

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Answer: To calculate the profit the girl made, we need to calculate the total cost and the total revenue.

The cost of the lemonade mix, cups, and the pitcher is:

$12 + $9 + $4 = $25

The number of pitchers needed to serve 107 cups of lemonade is:

107 cups ÷ 8 cups per pitcher = 13.375 pitchers (round up to 14 pitchers)

The cost per cup of lemonade is:

Total cost / Total cups = $25 / 500 cups = $0.05 per cup

The revenue from selling 107 cups of lemonade at $0.50 per cup is:

107 cups x $0.50 per cup = $53.50

The profit is the revenue minus the cost:

Profit = $53.50 - $25 = $28.50

Therefore, the girl made a profit of $28.50 from her lemonade stand that day.

Step-by-step explanation:

A. The equatiοn that relates these variables is: d = s × t.

B. The biker wοuld travel 10 miles in 20 minutes.

C. The biker wοuld bike fοr 96 minutes tο travel 48 miles.

A. To find the values Let's define the variables:

t = time in minutes

d = distance traveled by the biker in miles

s = speed οf the biker in miles per minute

The equatiοn that relates these variables is:

d = s * t

b. If the biker travels fοr 20 minutes, we can use the equatiοn abοve tο find the distance traveled:

d = s * t

d = s * 20 (since t = 20 minutes)

We need tο knοw the speed οf the biker tο calculate the distance traveled. Let's assume that the biker's speed is 0.5 miles per minute (which is equivalent tο 30 miles per hοur):

d = 0.5 * 20

d = 10

Therefοre, the biker wοuld travel 10 miles in 20 minutes.

c. If the biker traveled 48 miles, we can rearrange the equatiοn abοve tο find the time:

d = s * t

t = d / s

We need tο knοw the speed οf the biker tο calculate the time. Let's assume that the biker's speed is still 0.5 miles per minute:

t = 48 / 0.5

t = 96

Therefοre, the biker wοuld bike fοr 96 minutes tο travel 48 miles. Rοunded tο the nearest tenth, this is 96.0 minutes.

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a.) So the monthly payment is $550.27. b.) the total amount paid over the term of the loan is $99,048.60. c.)  Approximately 50.43% of the total amount paid goes towards principal, and 49.57% goes towards interest.

The calculation for a fixed-rate mortgage can be used to get the monthly payment:

Monthly Payment is equal to P * r * [(1 + r)n - 1] / [(1 + r)n]

When P represents the loan's principle, r represents the monthly interest rate (calculated by dividing the annual interest rate by 12), and n represents the total number of monthly payments.

When we enter the values, we obtain:

Monthly Payment is equal to 50,000 * (0.11/12) * (1 + 0.11/12) * [((1 + 0.11/12))*180 - 1)]

= $550.27 (rounded to the nearest cent) (rounded to the nearest cent)

the amount due each month is $550.27.

We can multiply the monthly payment by the number of payments to get the total amount paid over the course of the loan. There will be 180 payments total in this instance (15 years times 12 months per year).

Monthly Payment * Number of Payments = $550.27 * 180 to get the total amount paid.

= $99,048.60 (rounded to the nearest cent) (rounded to the nearest cent)

Hence, the total amount paid during the loan's period is $99,048.60.

An amortization schedule can be used to calculate the portion of the total payment that goes to principle and interest. According to this arrangement, the principal and interest portions of each monthly payment are separated.

We may create the loan's amortization plan using an online mortgage calculator as follows:

Month      Payment      Principal      Interest      Balance

1                $550.27      $265.85      $284.42     $49,734.15

2               $550.27      $265.85      $284.42     $49,734.15

...                    ...                ...                   ...                    ...

179             $550.27      $529.26     $21.02        $840.96

180             $550.27      $532.69     $17.58        $0.00

This table shows that the total amount paid in interest is $49,048.60, whereas the total amount paid in principal during the course of the loan is $50,000 (the original loan amount).

We can use the following calculations to determine what portion of the entire payment is allocated to principle and interest:

Principal Paid / Total Paid * 100% = $50,000 / $99,048.60 * 100% is the percentage of principal.

= 50.43%

Interest Paid / Total Paid * 100% = $49,048.60 / $99,048.60 * 100% = 49.57% is the percentage of interest.

Hence, around 49.57% of the total payment is spent on interest, and 50.43% is spent on principal.

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Complete question is: Consider a home mortgage of ​$5000 at a fixed APR of 7​% for 12years.

a. Calculate the monthly payment.

b. Determine the total amount paid over the term of the loan.

c. Of the total amount​ paid, what percentage is paid toward the principal and what percentage is paid for interest.

The probability that henry will get second turn is 1/2 i.e. None of the above.

What exactly is probability?

Probability is a measure of the likelihood or chance that a certain event will occur. It is a mathematical concept used to quantify uncertainty and randomness in various situations. In general, probability is expressed as a number between 0 and 1, where 0 indicates that an event is impossible and 1 indicates that an event is certain to occur.

Now,

To find the probability that Henry will get a second turn, we need to find the probability of rolling a sum that is an even number less than 10. There are two ways to get an even sum: either both dice must be even, or both dice must be odd. We can find the probability of each of these events separately, and then add them to get the total probability.

The probability of rolling an even number on one die is 1/2, since there are three even numbers (2, 4, and 6) and three odd numbers (1, 3, and 5). Therefore, the probability of rolling two even numbers is (1/2) x (1/2) = 1/4, since we need to multiply the probabilities of each die.

Similarly, the probability of rolling two odd numbers is also 1/4, since there are three odd numbers and three even numbers.

To get a sum that is an even number less than 10, Henry must roll one of the following combinations: (1, 1), (1, 3), (1, 5), (2, 2), (2, 4), (2, 6), (3, 1), (3, 3), (3, 5), (4, 2), (4, 4), (4, 6), (5, 1), (5, 3), (5, 5), (6, 2), (6, 4), or (6, 6).

There are a total of 6 × 6 = 36 possible outcomes when rolling the number cubes. Of these, 9 outcomes give an even sum less than 10. Therefore, the probability of Henry getting a second turn is:

P(getting a second turn) = 9/36 = 1/4

So, the answer is not one of the choices given.

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The mean absolute deviation(MAD) of the given data set is 2.6(rounding to nearest tenth).

What is mean absolute deviation?

It is a statistical term which means ratio of sum of all modulus values of deviation from central measure to the total number of data.

Formula is

Mean absolute deviation(MAD) = (Σ Modulus Values of Deviation from Central Measure) / (Total Number of data).

Given data set is { 7, 3, 4, 1, 9}

At first arranging the data in ascending order we get { 1, 3, 4, 7, 9}

For MAD we need mean at first.

Mean=(1+3+4+7+9)/5

Mean= 24/5

Mean = 4.8

Formula for MAD is attached in the file.

Now | (1-4.8), (3-4.8), (4-4.8), (7-4.8), (9-4.8) |

     =|(-3.8), (-1.8), (-0.8), 2.2,4.2|

sum of all values (3.8+1.8+0.8+2.2+4.2)= 12.8

12.8/5=  2.56

Hence, the value is 2.6(rounding to nearest tenth)

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Answer: The correct answer is (E) 65.

Step-by-step explanation:

The product between functions f(x) and g(x) gives:

(f·g)(x) = x⁵ - 2x³ + 2x² - 8x + 4

Here we have the functions:

f(x) = x³ - 4x + 2

g(x) = x² + 2

The product:

(f·g)(x) is just the product between the two functions, this gives:

f(x)·g(x)

Replacing these functions we will get.

(x³ - 4x + 2)*( x² + 2)

Expanding that product, we will get:

x³*x² + 2x³ - 4x*x² - 8x + 2x² + 4

x⁵ - 2x³ + 2x² - 8x + 4

That is the product.

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Answer:

➠ 11.7 + 19.1

➠ 30.8

Answer: 30.8

1. Add 11 and 19

2. Add .7 and .1

3. Put the results together

Please mark brainliest! Hope this helped!

A graph of the coordinates of the vertices of the image after a dilation by the given scale factor and center of dilation is shown in the image below.

In Geometry, dilation simply refers to a type of transformation which typically changes the size of a geometric object, but not its shape.

Next, we would apply a dilation to the coordinates of the pre-image by using a scale factor of 0.5 centered at the origin as follows:

Ordered pair J (-8, 0) → J' (-8 × 0.5, 0 × 0.5) = J' (-4, 0).

Ordered pair K (-4, 4) → K' (-4 × 0.5, 4 × 0.5) = K' (-2, 2).

Ordered pair L (-2, 0) → L' (-2 × 0.5, 0 × 0.5) = L' (-1, 0).

Next, we would have to dilate the coordinates of the preimage by using a scale factor of 1/3 centered at the point B (3, 3) by using this mathematical expression:

(x, y)  →  (k(x - a) + a, k(y - b) + b)

For coordinate A, B, and C, we have;

Coordinate A = (9, 9)  →  (1/3(9 - 3) + 3, 1/3(9 - 3) + 3) = (5, 5).

Coordinate B = (3, 3)  →  (1/3(3 - 3) + 3, 1/3(3 - 3) + 3) = (3, 3).

Coordinate C = (6, 0)  →  (1/3(6 - 3) + 3, 1/3(0 - 3) + 3) = (4, 2).

For coordinate D, E, and F, we have;

Coordinate D = (2, -2)  →  (1.5(2 - 4) + 3, 1.5(-2 + 2) + 3) = (0, 3).

Coordinate E = (4, -2)  →  (1.5(4 - 4) + 3, 1.5(-2 + 2) + 3) = (3, 3).

Coordinate F = (1, -4)  →  (1.5(1 - 4) + 3, 1.5(-4 + 2) + 3) = (-1.5, 0).

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8.08 liters.

To find the volume of each water sample, we need to divide the total volume of water collected by the number of samples collected.

Volume of each water sample = Total volume of water collected / Number of samples collected

We are given that the total volume of water collected is 606 liters, and the number of samples collected is 75.

Volume of each water sample = 606 / 75

Volume of each water sample = 8.08 liters

Therefore, the volume of each water sample is 8.08 liters.

The area οf the actual bridge deck in square feet is 1,280 square feet.

Area refers tο the measurement οf the size οf a twο-dimensiοnal surface, usually measured in square units such as square inches, square feet, οr square meters. It represents the amοunt οf space that is inside the bοundary οf a flat οbject οr shape.

The scale οf the drawing is 40:1, which means that the dimensiοns οf the scaled bridge deck are 40 times smaller than the actual bridge deck. Tο find the area οf the actual bridge deck in square feet, we need tο cοnvert the dimensiοns οf the scaled bridge deck frοm inches tο feet and then multiply by the square οf the scale factοr (40² = 1600).

The dimensiοns οf the scaled bridge deck in feet are:

24 inches = 2 feet

4 and 4/5 inches = 0.4 feet

Sο, the area οf the scaled bridge deck in square feet is:

2 feet x 0.4 feet = 0.8 square feet

Tο find the area οf the actual bridge deck in square feet, we need tο multiply the area οf the scaled bridge deck by the square οf the scale factοr:

Area οf actual bridge deck = 0.8 square feet x (40²) = 1280 square feet

Therefοre, the area οf the actual bridge deck in square feet is 1,280 square feet.

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Answer:

Step-by-step explanation:

The scale factor indicates the actual bridge is 40 times larger than the drawing.

Increase the scale dimensions by the factor of 40.

24 times 40 = 960"

4.8 times 40 = 192" (I changed 4 4/5 to 4.8)

Area = length times width

960 times 192 = 184320 sq inches actual bridge deck in square inches

Divide 183320 by 144 (sq inches in a square foot) = 1280 sq feet