If mDA =(23x -14), mDB =(9x-4), and m
x=?

Arc DA= ?

The graph touches the x-axis at [tex]x = 0[/tex] and crosses the x-axis at [tex]x = -5[/tex]and [tex]x = 2[/tex] describes the graph.

The x-axis is the horizontal axis in a coordinate system, also known as the Cartesian coordinate system. It is the axis where the values of the independent variable, usually denoted by "x", are plotted.

In mathematics, a graph is a visual representation of a set of data, often used to show the relationship between two or more variables. Graphs can be used to represent a wide variety of data, including numerical data, functions, and relationships between objects or concepts.

The statement that describes the graph of [tex]f(x) = -x^{4} + 3x^{3} + 10x^{2}[/tex] is:

"The graph touches the x-axis at [tex]x = 0[/tex] and crosses the x-axis at [tex]x = -5[/tex] and [tex]x=2[/tex]."

To see this, we can factor in the equation:

[tex]f(x) = x^{2} (x^{2} - 3x + 10)[/tex]

Then we can use the quadratic formula to find the roots of the quadratic factor:

[tex]x = [3+ \sqrt{9-40} /2[/tex]

[tex]x = [3 ± \sqrt{-31} ]/2[/tex]

Since the discriminant is negative, the roots are imaginary and the quadratic factor does not have any real roots. Therefore, the graph of f(x) only crosses the x-axis at the x-intercept of x = 0 and touches the x-axis at the points where x = –5 and x = 2.

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Answer:

To find out what is the other 10%, you can use the following formula:

(100% - 90%) = 10%

So, if 144 is 90% of a value, we can divide 144 by 0.9 to find the total value:

144 / 0.9 = 160

Therefore, the other 10% of 160 is:

0.1 x 160 = 16

Step-by-step explanation:

The population would be the name that is used to refer to the segmentation variables

In research, population refers to the entire group of individuals or objects that share a common characteristic and are of interest to the researcher. The population is the group to which the researcher wishes to generalize their findings. For example, if a researcher is studying the effects of a new medication on blood pressure in adults, the population would be all adult individuals who have high blood pressure.

It is important to define the population accurately in research because the results of the study can only be generalized to the population being studied. If the population is not defined accurately, the results of the study may not be applicable or generalizable to other groups or populations.

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The mοst cοmmοn illustratiοn is emplοyee grοup health insurance, when the cοmpany has already chοsen the plan οn the emplοyees' behalf. Insοfar as the emplοyer cοntributes tο the cοsts οr cοvers the entire cοst οf the cοverage, the emplοyees gain frοm this.

Any insurance cοverage that is purchased and chοsen by the pοlicyhοlder is referred tο as individual insurance. Grοup insurance, hοwever, may have been chοsen befοrehand by a different party, such as a cοmpany whο οffers each emplοyee a specific health insurance plan.

A persοn's persοnal insurance pοlicy is referred tο as an individual insurance pοlicy. As a result, the pοlicyhοlder is accοuntable fοr all premium payments and is presumed tο be knοwledgeable abοut the terms and cοnditiοns οf the cοverage (with the help οr advice οf an insurance agent, an insurance brοker, οr a representative οf the insurance cοmpany). This attempt may nοt be fully vοluntary given that certain gοvernments fοrce residents tο οbtain insurance.

Mοreοver, grοup insurance, when the pοlicy is chοsen by a third party, is different frοm individual insurance. The mοst cοmmοn illustratiοn is emplοyee grοup health insurance, when the cοmpany has already chοsen the plan οn the emplοyees' behalf. Insοfar as the emplοyer cοntributes tο the cοsts οr cοvers the entire cοst οf the cοverage, the emplοyees gain frοm this.

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Answer:

-------------------------------

As per given definition the function is:

A. The domain is all real numbers ⇒ TRUE, as there is no restrictions to the domain.

B. The range is all real numbers ⇒ TRUE, since no domain restrictions, the range has no restrictions.

C. The x-intercept is 0 ⇒ FALSE

It is the point with zero y-coordinate:

D. The y-intercept is 1 ⇒ TRUE

It is the point with zero x-coordinate:

E. The graph is decreasing for all values in the domain of f ⇒ TRUE

The domain has a negative coefficient and the function is cube - root function, hence the odd function, therefore it is always decreasing.

See attached graph to help with answer choices.

Answer:

Let's break down the given sentence into an equation.

Let's assume the number is represented by 'x'.

The product of two and a number: 2x

Eight less than the product of two and a number: 2x - 8

Equals four: 2x - 8 = 4

Therefore, the equation is 2x - 8 = 4.

On solving the question we have that Hence, with the supplied list of equation people, there are 192 methods to form a committee.

A math equation is a mechanism for connecting two statements and indicating equivalence with the equals sign (=). To explain the connection between the two sentences put on each side of a letter, a statistical method can be employed. The software and the logo are usually interchangeable. 2x - 4 equals 2, for example. An equation is a logical expression that asserts the equality of some mathematical expressions in algebra. In the equation 3x + 5 = 14, for example, the equal sign separates the numbers 3x + 5 and 14.

We must multiply the number of options for each position to determine the number of ways to fill the five committee posts.

There are four options for the faculty member role.

There are four options for the male student post.

There are four options for the female student post.

There are three options for the parent position.

There are four options for school board members.

As a result, the total number of possible ways to fill the five committee posts is:

4 x 4 x 4 x 3 x 4 = 192

Hence, with the supplied list of people, there are 192 methods to form a committee.

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In 1,024 ways we can fill these five committee positions. we can solve this by using permutation.

A permutation of a set in mathematics is, broadly speaking or telling , the rearrangement of its elements if the  set already has an ordered or arranged structure into a sequence or linear order. The act or procedure of altering  the linear order of an ordered set is referred to as a "permutation" in this context.

Number of   faculty members: 4

Number of male   students: 4

Number   of female students: 4

Number of parents:    4

Number of school    board members: 4

4  X  4  X  4 X  4 X  4 = 1,024  ,    ways to fill the 5 committee positions.

In 1,024 ways we can fill these five committee positions.

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Answer: $165.23

Step-by-step explanation:

To solve the problem, we can use the formula for compound interest:

A = P (1 + r/n)^(nt)

where A is the amount, P is the principal (initial amount), r is the annual interest rate as a decimal, n is the number of times the interest is compounded per year, and t is the time in years.

In this case, P = $125, r = 0.19 (since the interest rate is 19%), n = 1 (since the interest is compounded annually), and t = 48/12 = 4 (since the time is given in months but we need to convert it to years). Plugging in these values, we get:

A = 125 (1 + 0.19/1)^(1*4)

A = 125 (1.19)^4

A ≈ $290.23

So, the total amount after 48 months is approximately $290.23. To find the interest earned, we subtract the principal from the amount:

Interest = Amount - Principal

Interest = $290.23 - $125

Interest = $165.23

Therefore, Min-jun will earn $165.23 in interest in 48 months.

36

Step-by-step explanation:

Total ratio 2+6=8

the ratio for glazed doughnuts is 6. divide it by the total ratio and multiply it by the total number of doughnuts

6/8 × 48

= 36

2a. 2+6=8

6/8 × 24

=18

3a. 3+9=12

3/12 × 144

= 36

Answer:

[tex]y = -\frac{3x}{4} + 3[/tex]

Step-by-step explanation:

Isolate the variable, y. Note the equal sign, what you do to one side, you do to the other. Remember to do the opposite of PEMDAS.

PEMDAS is the order of operations, and stands for:

Parenthesis

Exponents (& Roots)

Multiplications

Divisions

Additions

Subtractions

~

First, subtract 3x from both sides of the equation:

[tex]3x + 4y = 12\\4y + 3x (-3x) = 12 (-3x)\\4y = -3x + 12[/tex]

Next, divide 4 from both sides of the equation:

[tex]4y = -3x + 12\\\frac{(4y)}{4} = \frac{(-3x + 12)}{4} \\y = \frac{-3x + 12}{4}\\ y = -\frac{3x}{4} + 3[/tex]

[tex]y = -\frac{3x}{4} + 3[/tex] is your answer.

~

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Answer:

Let's call the two numbers x and y.

From the problem statement, we know that:

x + y = 29 (Equation 1)

4x - y = 6 (Equation 2)

We can solve for one variable in terms of the other by rearranging Equation 1:

y = 29 - x

Substitute this expression for y in Equation 2 and solve for x:

4x - (29 - x) = 6

5x - 29 = 6

5x = 35

x = 7

Now that we know x = 7, we can use Equation 1 to solve for y:

x + y = 29

7 + y = 29

y = 22

Therefore, the two numbers are 7 and 22.

Answer:

the two numbers are x = 7.2 and y = 21.8.

Step-by-step explanation:

Let's call the first number x and the second number y. We can set up two equations based on the information given:

x + y = 29    (equation 1)

4x - y = 6    (equation 2)

We can use these two equations to solve for x and y.

To do so, we can use the method of substitution. Solving equation 1 for x, we get:

x = 29 - y

We can then substitute this expression for x into equation 2:

4(29 - y) - y = 6

Simplifying and solving for y:

116 - 4y - y = 6

115 - 5y = 6

-5y = -109

y = 21.8

So one of the numbers is y = 21.8. To find the other number, we can substitute this value back into equation 1:

x + 21.8 = 29

x = 7.2

Therefore, the two numbers are x = 7.2 and y = 21.8.

The area of the composite shape is 63cm²

The area of a triangle is the amount of space that is contained within the boundaries of the triangle. It is usually measured in square units, such as, square centimeters or square meters.

In the figure there are two figures, triangle and rectangle.

first find the area of triangle:

[tex]area of triangle = \frac{ heightXbase }{2}[/tex] = [tex]\frac{5X6}{2} = 15cm^{2}[/tex]

Now, find the area of rectangle:

[tex]area of rectangle= length X width = 8X6 = 48 cm^{2}[/tex]

Total area of the figure is = 15 + 48 = 63cm²

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The value of x and y are 8[tex]\sqrt{2}[/tex], we can solve this question by Pythagoras' Theorem.

Pythagoras' Theorem states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides. Mathematically, it can be written as: [tex]$a^2 + b^2 = c^2$[/tex]

where 'a' and 'b' are the lengths of the legs (the sides adjacent to the right angle) and 'c' is the length of the hypotenuse. This theorem is named after the ancient Greek mathematician Pythagoras, who is credited with its discovery and proof. It has a wide range of applications in geometry, trigonometry, and other areas of mathematics and science.

By using Pythagoras' theorem, we get

[tex]sin 45=\frac{x}{16}[/tex]

[tex]\frac{1}{\sqrt{2} }[/tex] =[tex]\frac{x}{16}[/tex]

[tex]x=8\sqrt{2}[/tex]

[tex]cos 45=\frac{x}{16}[/tex]

[tex]\frac{1}{\sqrt{2} }[/tex]=[tex]\frac{y}{16}[/tex]

[tex]y=8\sqrt{2}[/tex]

So, the values of x and y are 8[tex]\sqrt{2}[/tex]

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1) We need 2 rolls of grass at a cost of 2 rolls x $400 per roll = $800. 2) Number of kids per square yard: 0.06 kids/ sqyrd. 3) The total cost for this playground would be $3170, which is within the budget of $4290.

To find the cost of laying grass, we need to know the area of the playground. The area of a rectangle with dimensions 100 feet by 75 feet is 100 ft x 75 ft = 7500 square feet. To convert to square yards, we divide by 9: 7500 sq ft ÷ 9 = 833.33 sq yd. This means we need 2 rolls of grass (833.33 sq yd ÷ 500 sq yd per roll) at a cost of 2 rolls x $400 per roll = $800.

The total cost of fencing and grass for this playground is $630 + $800 = $1430.

From part 2, we know that Springfield's playground can hold 50 kids in 7500 square feet or 833.33 square yards, which is a density of 0.06 kids per sq yd. To hold three times as many kids, the new playground should be able to hold 150 kids.

Let's assume we want to keep the same density of 0.06 kids per sq yd. To find the area needed for the new playground, we divide the number of kids by the density: 150 kids ÷ 0.06 kids per sq yd = 2500 sq yd.

There are many shapes and sizes that could have an area of 2500 sq yd. One option is a rectangle with dimensions 125 feet by 200 feet. The perimeter of this playground is 650 feet, which would require 13 rolls of fencing at a cost of $1170. The area of the playground is 2500 square yards, which would require 5 rolls of grass at a cost of $2000.

The total cost for this playground would be $3170, which is within the budget of $4290. It can hold at least 3 times as many kids as Springfield's playground, with the same density of 0.06 kids per sq yd.

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Answer:

1. It Should be $ 36039.60

2. Total = 432,00 ft / 3 = 14400/360= 40 kids

3.  443880 ft / 3 = 147960 / 360 = 411 kids

Step-by-step explanation:

The teacher tell me the answers

1)
a) the equation that models the fish population in y in a fishery that has a linear growth rate of 40 new fish each season  and an initial population of 1250 fish. is: y = 40x + 1250

b) it will take 11 seasons for the fish population to reach 1690 fish.

2) a) The equation for a second fish population that grows by 60 new fish each season with an initial population of 1100 fish is: y = 60x + 1100

b) after 7.5 seasons, both fish populations will have the same population.

1) To model the fish population y in the fishery with a linear growth rate of 40 new fish each season and an initial population of 1250 fish, we can use the equation:

y = 40x + 1250

where x is the number of seasons.

To find after how many seasons the population will reach 1690 fish, we can substitute y with 1690 and solve for x:

1690 = 40x + 1250

Subtracting 1250 from both sides, we get:

440 = 40x

Dividing both sides by 40, we get:

x = 11

Therefore, it will take 11 seasons for the fish population to reach 1690 fish.

2) To write an equation for a second fish population that grows by 60 new fish each season with an initial population of 1100 fish, we can use the equation:

y = 60x + 1100

where x is the number of seasons.

To find after how many seasons the two populations will have the same population, we can set the two equations equal to each other and solve for x:

40x + 1250 = 60x + 1100

Subtracting 40x and 1100 from both sides, we get:

150 = 20x

Dividing both sides by 20, we get:

x = 7.5

Since x represents the number of seasons, we can conclude that after 7.5 seasons, both fish populations will have the same population.

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Answer: Here's a tree diagram that shows all the possible sequences of answers for four multiple-choice questions, each with five possible responses:

           /-- A -- A -- A -- A

          /

         /      /-- A -- A -- A -- B

        /      /-- A -- A -- B -- A

       /      /-- A -- B -- A -- A

      /      /-- B -- A -- A -- A

     /      /

    /      /         /-- A -- A -- B -- B

   /      /         /-- A -- B -- A -- B

  /      /         /-- A -- B -- B -- A

 /      /         /-- B -- A -- A -- B

/      /         /-- B -- A -- B -- A

/      /         /-- B -- B -- A -- A

      /

     /            /-- A -- B -- B -- B

    /            /-- B -- A -- B -- B

   /            /-- B -- B -- A -- B

  /            /-- B -- B -- B -- A

 /

/               /-- A -- B -- B -- B

/               /-- B -- A -- B -- B

               /-- B -- B -- A -- B

              /-- B -- B -- B -- A

Each branch in the tree represents the guess for one of the questions, and the letters A and B represent the possible answers. There are 5 branches coming out of each node in the tree because there are 5 possible answers for each question.

To find the probability of guessing the one sequence that contains all four correct answers, we multiply the probabilities of following the path A-A-A-A:

P(A-A-A-A) = (1/5) * (1/5) * (1/5) * (1/5) = 1/625

Therefore, the probability of guessing the one sequence that contains all four correct answers is 1/625 or about 0.16%.

Step-by-step explanation:

The missing side of each right triangle are:

a = 20 m

b = 21 cm

c = 36 cm

Trigonometry deals with the study of triangles and the relationships between their sides and angles.

The missing side of each right triangle can be calculated as follow:

No. 1

a = √(12² + 16²)    (Pythagoras theorem)

a = 20 m

No. 2

b = √(35² - 28²)    (Pythagoras theorem)

b = 21 cm

No. 3

c = √(39² - 15²)    (Pythagoras theorem)

c = 36 cm

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The correct statements are:

A. The independent variable is the number of boxes of cinnamon rolls Claude buys.

B. The dependent variable is the amount of money Claude spends on the cinnamon rolls.

What is independent variable?

The independent variable is the variable that is manipulated or controlled by the experimenter, and in this case, Claude is choosing how many boxes of cinnamon rolls to buy.

1. The dependent variable is the variable that is affected by the independent variable, and in this case, the amount of money Claude spends depends on the number of boxes he buys.

Therefore, statement A and B are correct, while C, D, and E are not true in this context.

2. Sampling bias is a bias in which a sample is collected in such a way that some members of the intended population have a similar sampling probability than others. (FALSE)

3. Ruben randomly called 100 phone numbers in his town in order to survey them about their shopping habits. 55 people decided to participate in the survey.

This is an unbiased sample. (FALSE)

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a. Let ER denοte the event that a cοmpany uses training fοr emplοyee retentiοn and PI denοte the event that a cοmpany uses training fοr prοcess imprοvement.

We need tο find P(ER and nοt PI). Using the fοrmula fοr cοnditiοnal prοbability, we have: P(ER and nοt PI) = P(ER | nοt PI) P(nοt PI)

We are given that 36% οf the cοmpanies use training fοr bοth emplοyee retentiοn and prοcess imprοvement. Sο, the percentage οf cοmpanies that use training fοr emplοyee retentiοn but nοt prοcess imprοvement is:

56% - 36% = 20%

Alsο, we are given that 64% οf the cοmpanies dο nοt use training fοr emplοyee retentiοn. Sο, the percentage οf cοmpanies that dο nοt use training fοr prοcess imprοvement is:

100% - 36% = 64%

Using these percentages, we have:

P(ER and nοt PI) = (0.20)/(0.64) ≈ 0.3125

Therefοre, the prοbability that the cοmpany uses training fοr emplοyee retentiοn and nοt fοr prοcess imprοvement is apprοximately 0.3125.

b. We need tο find P(PI | ER), the prοbability that the cοmpany uses training fοr prοcess imprοvement given that it uses training fοr emplοyee retentiοn. Using Bayes' theοrem, we have:

P(PI | ER) = P(ER and PI) / P(ER)

We are given that 36% οf the cοmpanies use training fοr bοth emplοyee retentiοn and prοcess imprοvement. Alsο, we calculated in part (a) that 20% οf the cοmpanies use training fοr emplοyee retentiοn but nοt prοcess imprοvement. Sο, the percentage οf cοmpanies that use training fοr emplοyee retentiοn (with οr withοut prοcess imprοvement) is: 56%

Therefοre, we have:

P(ER) = 0.56

P(ER and PI) = 0.36

P(PI | ER) = (0.36)/(0.56) ≈ 0.643

Therefοre, if it is knοwn that the cοmpany uses training fοr emplοyee retentiοn, the prοbability that it uses training fοr prοcess imprοvement is apprοximately 0.643.

c. We are given that 36% οf the cοmpanies replied that they use training fοr prοcess imprοvement and emplοyee retentiοn. Sο, the prοbability that the cοmpany uses training fοr prοcess imprοvement is 36%.

d. We need tο find P(ER οr PI), the prοbability that the cοmpany uses training fοr emplοyee retentiοn οr prοcess imprοvement. Using the fοrmula fοr the uniοn οf twο events, we have:

P(ER οr PI) = P(ER) + P(PI) - P(ER and PI)

We are given that 36% οf the cοmpanies replied that they use training fοr prοcess imprοvement and emplοyee retentiοn. Alsο, we calculated in part (b) that 56% οf the cοmpanies use training fοr emplοyee retentiοn (with οr withοut prοcess imprοvement). Sο, the percentage οf cοmpanies that use training fοr prοcess imprοvement (with οr withοut emplοyee retentiοn) is: 36%

Therefοre, we have:

P(ER) = 0.56

P(PI) = 0.36

P(ER and PI) = 0.36

P(ER οr PI) = 0.56 + 0.36 - 0.36 = 0.56

Therefοre, the prοbability that the cοmpany uses training fοr emplοyee retentiοn οr prοcess imprοvement is 0.56.

e. We need tο find the prοbability that the cοmpany neither uses training fοr emplοyee retentiοn nοr uses training fοr prοcess imprοvement. This is the cοmplement οf the event that the cοmpany uses training fοr emplοyee retentiοn οr prοcess imprοvement, sο we have:

P(neither ER nοr PI) = 1 - P(ER οr PI) = 1 - 0.56 = 0.44

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To find the percentage of cars that were traveling east, we can use the following formula:

percentage = (part / whole) x 100%

where "part" is the number of cars traveling east, and "whole" is the total number of cars counted.

In this case, we know that 6,020 cars were traveling east, out of a total of 7,000 cars counted. So we can plug these values into the formula:

percentage = (6,020 / 7,000) x 100%

percentage = 0.86 x 100%

percentage = 86%

Therefore, 86% of the cars counted were traveling east across the toll bridge.

Therefore, the payment for the first card each month excluding the last payment is $163.75, and it takes 10 months to pay it off. The payment for the second card each month excluding the last payment is $186.25, and it will take longer to pay it off completely, depending on the balance and the interest rate.

An equation is a mathematical statement that shows the equality of two expressions, usually with an equal sign "=" in between them. An equation can contain variables, constants, and operators. The variables are represented by letters and can take on different values, while constants are fixed values that do not change. Operators include mathematical symbols like plus, minus, multiplication, and division, as well as exponents and logarithms.

Here,

To find the debt ratio, we need to divide the total credit card balance by the total credit limit. Let's say the balance on the first card is $1,500 and the credit limit is $5,000, and the balance on the second card is $2,500 and the credit limit is $10,000. Then, the total balance is $1,500 + $2,500 = $4,000 and the total credit limit is $5,000 + $10,000 = $15,000.

Therefore, the debt ratio is:

Debt ratio = Total balance / Total credit limit = $4,000 / $15,000 = 0.2667 or 26.67%

Now, let's look at paying off the credit card debt. We will assume that the first card has a higher interest rate than the second card. Let's say the interest rate on the first card is 18% per year and the interest rate on the second card is 12% per year.

If we budget $375 to pay off the credit card debt, we can determine the payment for the first card and the number of months it will take to pay it off as follows:

Step 1: Determine the interest accrued on the second card

Interest accrued on the second card per month = (12% per year / 12 months) * $2,500 = $25

Step 2: Determine the payment for the first card

Let x be the payment for the first card. Then, the payment for the second card is $375 - x. The total interest accrued on the first card plus the principal must be equal to the total payment:

0.18/12 * $1,500 + x = $375 - x - $25

0.015 * $1,500 + 2x = $350

2x = $350 - $22.50

x = $327.50/2 = $163.75

Therefore, the payment for the first card is $163.75, and the payment for the second card is $375 - $163.75 - $25 = $186.25.

Step 3: Determine the number of months to pay off the first card

Let n be the number of months to pay off the first card. Then, the balance after n months is:

$1,500 * (1 + 0.18/12)*n - $163.75 * ((1 + 0.18/12)*n - 1)/(0.18/12) = $0

Using a spreadsheet or trial and error, we can find that it takes approximately 10 months to pay off the first card.

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By answering the presented question, we may conclude that f'(x) = nx, function f(x) = xn (n-1) Where n is the function's power.

Mathematicians examine numbers and their variations, equations and associated structures, forms and their locations, and prospective positions for these things. The term "function" refers to the relationship between a collection of inputs, each of which has a corresponding output. A function is a connection of inputs and outputs in which each input leads to a single, identifiable outcome. Each function is assigned a domain, a codomain, or a scope. The letter f is widely used to denote functions (x). The symbol for entry is an x. The four primary types of accessible functions are on functions, one-to-one capabilities, so multiple capabilities, in capabilities, and on functions.

If you have a function y = f(x) and wish to discover the value of the derivative at a certain point x = a, use the notation:

lim(h -> 0) f'(a) h = [f(a + h) - f(a)]

This equation indicates the difference quotient's limit as h approaches 0. You may also use the derivative formula for power functions:

f'(x) = nx, f(x) = xn (n-1)

Where n is the function's power.

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Applying similar triangles the length of EB is 14.6

Similar triangles is a term used in geometry to mean that the respective sides of the triangles are proportional and the corresponding angles of the triangles are congruent

Hence assuming the corresponding angles of the triangle are congruent then the side should be in proportions

Examining the figure shows that pair of equivalent sides are

DE and DF, EB and FC

The solution is worked out using sides BC and FE, then AC and DF

DE / EB = DF / FC

17.5 / EB = 13.1 / 10.9

cross multiplying

17.5 * 10.9 = 13.1 * EB

EB = 14.6

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The probability that this person also sailed is 1.

What is probability?

In mathematics, probability is a measure of the likelihood or chance that an event will occur. It is typically expressed as a number between 0 and 1, where 0 represents an impossible event and 1 represents a certain event.

Out of 50 people, 40 took part in walking and 18 took part in sailing. However, 3 people did neither activity, which means that 40 + 18 - 3 = 55 people took part in at least one of the activities.

Let's represent the set of people who walked as A, and the set of people who sailed as B. We want to find the probability that a randomly chosen person from A is also in B, which can be represented as P(B|A).

Using the formula for conditional probability, we have:

P(B|A) = P(A and B) / P(A)

We know that P(A and B), the probability that a person took part in both walking and sailing, is 50 - 3 = 47 (since 3 people did neither activity). We also know that P(A), the probability that a person took part in walking, is 40.

Therefore,

P(B|A) = 47 / 40

which simplifies to

P(B|A) = 1.175

probabilities cannot be greater than 1, so the actual probability is 1, meaning that it is certain that a person who walked also sailed.

Hence, The probability that this person also sailed is 1.

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The water in the two pools would be the same quantity in 40 minutes.

The amount of water in each pool is 1790 liters.

The function that represents the total amount of water in the first pool is:

Water already in the pool + (amount of water added per minute x number of minutes)

970 + (20.5 x t)

970 + 20.5t

The function that represents the total amount of water in the second pool is:

quantity added per minute x number of minutes

44.75 x t

44.75t

When the two pools have the same amount of water, the two functions would be the same.

44.75t = 970 + 20.5t

970 = 44.75t - 20.5t

970 = 24.25t

t = 970 / 24.25

t = 40 minutes

Amount of water in each pool = 44.75 x 40 = 1790 liters

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hope this helps!

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The angle between 0 and 2π in radians is cοterminal with the angle 27π/4 in radians being 3π/4.

The angles with the same initial side and identical terminal sides are said tο be cοterminal angles. By adding οr remοving 360° οr 2 tο an angle, we may find its cοterminal angle. The cοterminal angles in trigοnοmetry have the same values fοr the sin, cοs, and tan functiοns.

Here, we have

Cοterminal with the angle 27π/4  in radians

Tο find a cοterminal angle, add οr subtract any multiple οf 2π

 27π/4 - 2π = 19π/4

19π/4 - 2π = 11π/4

11π/4 - 2π = 3π/4

Hence, The angle between 0 and 2π in radians that is cοterminal with the angle 27π/4  in radians is 3π/4.

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Using properties of trapezium, x = 7° and y = 10°.

A quadrilateral with at least one set of parallel sides is known as a trapezium. A trapezium has the following characteristics:

Four vertices and four sides make up a trapezium.

The bases of a trapezium are its parallel sides. The legs are the non-parallel sides.

The distance that separates the bases of a trapezium perpendicularly is known as its height (or altitude). It need not be the same as the length of the legs.

The section that joins the midpoints of the legs is known as the mid-segment of a trapezium. It runs parallel to the bases and has the same length as the sum of the bases' lengths.

A trapezium's internal angles add up to 360 degrees.

A = 1/2 x (base1 + base2) x height, where base1 and base2 are the lengths of the two bases and height is the perpendicular distance between them, can be used to compute the area of a trapezium.

These are some of a trapezium's essential characteristics.

The given figure is trapezium,

As, two non - parallel sides are equal and they intersect a parallel line,

⇒ The angle at which they intersect will be equal,

⇒ 7x = 49

x = 7°

The sum of angles on adjacent sides of trapezium equals 180.

⇒ 13y + 1 + 7(7) = 180

⇒ 13 y + 50 = 180

⇒ y = 180 - 50 / 13

⇒ y = 10°

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