is y=10(1−0.04)x growth or decay

Answer:

y=-0.5x+2; y=3x-5

Step-by-step explanation:

First linear equation:

y=ax+b

A(0,2) B(4,0)

2=a*0+b

0=4*a+b

b=2

4a+b=0

4a+2=0

4a=-2

a=-0.5

y=-0.5x+2

Second linear equation:

y=cx+d

C(0,-5) D(2,1)

-5=c*0+d

1=c*2+d

d=-5

2c+d=1

2c-5=1

2c=6

c=3

y=3x-5

Step-by-step explanation:

All you need to do here is use the area of a circle equation!

So a=pi(r)^2

A=pi(7)^2
A=pi49

Area would be 49pi or about 153.938 feet^2. Hope this helps!

Answer:

The rug will cover

Step-by-step explanation:

Answer: 15 nickels, 63 dimes, 44 quarters

Step-by-step explanation:

x=number of nickels

4x+3=number of dimes

4x+3-19=number of quarters

Solve the following equation:

x+4x+3+4x+3-19=122

9x-13=122

x=15

Plug x back into the expressions:

Number of nickels=15

Number of dimes:

4(15)+3

63

Number of quarters:

4(15)+3-19

44

Manuel purchased 1.75 pounds of corn kernels.

An equation is a mathematical statement that shows the equality between two expressions. The expressions on either side of the equals sign are called the left-hand side and the right-hand side of the equation. An equation can be written in many different forms, but the most common form is: Left-hand side = Right-hand side

In the given question,

Let's use x to represent the number of pounds of corn kernels Manuel purchased.

We know that Manuel bought 2.5 pounds of sunflower seeds, and that both the sunflower seeds and corn kernels cost $2.20 per pound.

The total amount Manuel spent on the sunflower seeds and corn kernels was $9.35, so we can write the equation: 2.2(2.5) + 2.2x = 9.35

Simplifying the left side of the equation, we get: 5.5 + 2.2x = 9.35

Subtracting 5.5 from both sides, we get: 2.2x = 3.85

Dividing both sides by 2.2, we get: x = 1.75

Therefore, Manuel purchased 1.75 pounds of corn kernels.

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To graph the function f(x) = 2sin(x)-2, we can start by plotting the y-intercept (0, -2).

Next, we can use the amplitude of 2 to mark the highest and lowest points of the graph. The highest point will be 2 units above the midline at y = 0, and the lowest point will be 2 units below the midline at y = -4.

To establish the period of the function, we need to identify the distance between one complete cycle of the graph. Since sine has a period of 2pi, we can see that the period of our function is also 2pi.

Starting from the y-intercept, we can mark a point on the graph that is one-quarter of the way through a cycle, at x = pi/2. The sine function will be at its maximum value of 1 at this point, so the graph will be at y = 0 + 2

You would need to make a 94 on the next quiz to have a mean quiz score of 90.

If 90 is the desired mean, then you have to multiply it by the number of quizzes

5 x 90 = 450 is the total in the 5 quizzes.

Now, add the scores of the first four quizzes.

88 + 95 + 93 + 80 = 356

Then, take the amount of the 5 quizzes and subtract it from the amount of the total 4 quizzes.

450 - 356 = 94

Both of the two triangles are similar by SSS similarity postulate.

Similar triangles are defined as triangles that have the same shape, but their sizes may vary. This means that, if two triangles are similar, then we can say that their corresponding angles are congruent and corresponding sides are in equal proportion.

Looking at the 2 given triangles, we can see the ratio if corresponding sides as:

39/13 = 3

39/13 = 3

21/7 = 3

Since the ratios of the corresponding sides of both triangles are the same, then they are both Similar by SSS similarity postulate.

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The graph of point V(-6,3) after a rotation 90° clockwise rotation around the origin is given below:

What is graph?

In mathematics, a graph is a visual representation of a set of objects, which are called vertices or nodes, connected by links or edges. A graph can be used to represent relationships or connections between objects in a clear and concise way.

To graph the image of point V(-6, 3) after a 90° clockwise rotation around the origin, we can use the following steps:

The graph of point V(-6, 3) and its image after a 90° clockwise rotation around the origin is shown below:

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Answer:

21

Step-by-step explanation:

Answer:7x+1

Step-by-step explanation:

1). Distribute: 9x-6-2x+7

2). Combine like terms: 9x+1-2x

3). Combine like terms: 7x+1

It's difficult to provide a precise answer to this question without knowing the specific median salary for a construction worker and the median salary for teachers in the same geographic area or region.

However, according to data from the Bureau of Labor Statistics (BLS) in the United States, the median annual salary for construction workers as of May 2020 was $38,970, while the median annual salary for elementary, middle, and high school teachers was $61,660. This means that a person making the median salary for a construction worker would be making less than approximately 37% of teachers.

It's important to note that this is a general comparison and the specific salaries can vary depending on factors such as location, years of experience, education level, and job responsibilities.

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Answer:

Toss the coins more than 20 times.

Step-by-step explanation:

Toss the coins more than 20 times. The experimental probability gets closer to the theoretical probability when the sample size is larger.

a) Note that the distribution of piles would be:

Person A gets Pile 5

Person B gets Pile 1

Person A gets Pile 3

Person B gets Pile 4

Person A gets Pile 2.

b) No, in this situation each person did not get their fair share.

If the taking turns procedure is such that Person A chooses first and then they alternate turns, then the following would be the distribution of piles:

So the distribution of piles would be:

b) No, in this situation each person did not get their fair share if the criterion for fairness is defined as each person receiving an equal share of the piles.

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Full Question:

Although part of your question is missing, you might be referring to this full question: See attached image.

x is the number of sucesses.

e = 2.71828 is the Euler number.

μ​ is the mean in the given interval.

The probability that a randomly selected region had exactly two hits is 0.1710.

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(x)= (μ^x * e^-μ)/x!​

Where

x is the number of sucesses

e = 2.71828 is the Euler number

μ is the mean in the given interval.

A total of 535 bombs hit the combined area of 574 regions. So the mean hits per region is:

P = 535/574 = 0.9321

Assume that we want to find the probability that a randomly selected region had exactly two hits (i.e P(x = 2)).

P(x) = (μ^x * e^-μ)/x!​

P(2) = (0.9321^2 * e^-(0.9321))/2!​

P(2) = 0.1710

Therefore, the probability that a randomly selected region had exactly two hits is 0.1710.

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is a pineapple

Step-by-step explanation:this is becuase you should work it out youself you silly goose

Answer:

circle is not a function.

Step-by-step explanation:

there are certain rules to define a mapping as function, one of them is function should not have more than 1 value at a given x.

for illustration purpose consider the below diagram,

as you can see in the given circle at x = 2, there are two different values of y, therefore equation of circle doesn't qualify as a function. half circle can be defined as a function (by restricting the range to only positive or negative values).

Hopefully you found the answer helpful

Using probability distribution, we can distribute the cottages as the follows along the road.

An experiment's potential outcomes are broken down into a probability distribution, which indicates the relative possibility of each one happening. For the purpose of describing a probability distribution, there are two key functions.

They are the cumulative distribution function and the probability density function, sometimes known as the probability mass function.

As the distance between each cottage and its neighbour is 1, 2, 3, 4, ... 25, or 26 miles, the entire length of the road that these distances occupy must equal 27 miles. The road links the six cottages, which explains why.

The cottages 1and 2 are separated by a mile, according to one conceivable distribution.

Similarly,

Two miles separate cottages 3 and 4.

Three miles separate cottages 5 and 6.

There are 4 miles between Cottages 1 and 3.

There are 5 miles between cottages 2 and 4.

There are 6 miles between cottages 3 and 5.

There are 7 miles between cottages 4 and 6.

Twenty-five miles separate cottages 1 and 6.

There are 26 miles between cottages 2 and 5.

By flipping the order of the cottage distances, a second potential distribution can be created. Which is:

There are 26 miles between cottages 2 and 5.

Twenty-five miles separate cottages 1 and 6.

There are 7 miles between cottages 4 and 6.

There are 6 miles between cottages 3 and 5.

There are 5 miles between cottages 2 and 4.

There are 4 miles between Cottages 1 and 3.

Three miles separate cottages 5 and 6.

Two miles separate cottages 3 and 4.

Two cottages 1 and 2 are one mile apart.

These two show that there are numerous ways to arrange the distances between the cottages while still adhering to the requirement that the distances must add to 27 miles, while there may be other alternative distributions.

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These two demonstrate that there are a variety of distributions for the distances between the cottages that still adhere to the requirement that the distances sum up to 27 miles.

The probability distribution of the possible results of an experiment shows the relative likelihood of each one occurring. There are two essential functions for defining a probability distribution.

They are the probability density function, also called the probability mass function, and the cumulative distribution function.

The total length of the road that these distances fill must be 27 miles because the distance between each cottage and its neighbor is 1, 2, 3, 4,... 25, or 26 miles. The six houses are connected by a road, which explains why.

According to one possible distribution, the distance between cottages 1 and 2 is one mile.

Similarly,

Cottages 3 and 4 are separated by two kilometers.

Cottages 5 and 6 are separated by three kilometers.

The distance between Cottages 1 and 3 is 4 kilometers.

The distance between houses 2 and 4 is 5 miles.

The distance between cottages 3 and 5 is six kilometers.

The distance between cottages 4 and 6 is seven kilometers.

The distance between houses 1 and 6 is 25 miles.

The distance between houses 2 and 5 is 26 miles.

It is possible to generate a second potential distribution by flipping the order of the cottage distances. That is:

The distance between houses 2 and 5 is 26 miles.

The distance between houses 1 and 6 is 25 miles.

The distance between cottages 4 and 6 is seven kilometers.

The distance between cottages 3 and 5 is six kilometers.

The distance between houses 2 and 4 is 5 miles.

The distance between Cottages 1 and 3 is 4 kilometers.

Cottages 5 and 6 are separated by three kilometers.

Cottages 3 and 4 are separated by two kilometers.

Two cottages 1 and 2 are one mile apart.

These two demonstrate that there are a variety of distributions for the distances between the cottages that still adhere to the requirement that the distances sum up to 27 miles.

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(a) The predictor variable is Fall in feet and the response variable is Duration in seconds.

(b) The slope is in seconds per foot.

(c) The slope may be negative, as greater drop heights generally result in longer travel times.

(a) The predictor variable in this regression is Drop, which represents the drop height of the roller coaster, in feet, in feet. The response variable is Duration, which represents the duration of the trip, in seconds, in seconds.

(b) The units of slope in this regression are seconds per foot. This means that for each unit of increase in descent height in feet, the travel time will increase or decrease the value of the slope, measured in seconds per foot.

(c) The slope can be negative, as greater drop heights generally result in longer ride times, and the Tower of Terror roller coaster, which was exceptionally short despite its large drop height, has were removed from the analysis.

Therefore, the remaining 90 roller coasters in the dataset likely exhibit a negative relationship between drop height and time, meaning that as drop height increases, ride time decreases .

The Low R-value squared 29.4% means that the relationship between roller coaster drop and ride time in the data set is highly variable, but the negative slope indicates a general downward trend.

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Answer: 3.4 The number of passengers with misplaced luggage if 1 million passengers pass through the St. Louis airport with checked baggage each month would be 3.4 passengers.

A six sigma program is a quality improvement methodology that uses data and statistical analysis to identify and eliminate defects in a process. Six Sigma methodologies are used to improve efficiency and minimize defects in many business processes, including baggage handling in airports.

Sigma is a term used to refer to standard deviation, which is a measure of the spread of data in a process. A six sigma program aims to reduce the standard deviation in a process to a level where there are fewer than 3.4 defects per million opportunities.

Therefore, if one million passengers pass through the St. Louis airport each month, a successful six sigma program for baggage handling would result in 3.4 passengers with misplaced luggage.

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The probability that the component survives 200 hours is approximately 0.9802. The probability that a component, which is functioning after 200 hours, is still functioning after 400 hours, is approximately 0.8703.

What is probability?

Probability is a numerical representation of the likelihood or chance of a specific event occurring. It is typically expressed as a value between 0 and 1, with 0 indicating that the event is impossible and 1 indicating that the event is certain to occur.

To determine the probability that the component survives 200 hours, we need to calculate the survival function, which is the probability that the component lasts longer than 200 hours. We can use the formula:

[tex]$$ S(t) = e^{-\int_0^t z(u) du} $$[/tex]

where [tex]$S(t)$[/tex] is the survival function and [tex]$\int_0^t z(u) du$[/tex] is the integral of the failure rate from 0 to [tex]$t$[/tex].

In this case, the failure rate is [tex]$z(t) = 2.0\times10^{-6}t/\text{hour}$[/tex] for [tex]$t > 0$[/tex]. Integrating this from 0 to 200 gives:

[tex]$$ \int_0^{200} z(t) dt = \int_0^{200} (2.0\times10^{-6}t) dt =[/tex] [tex]\left[\frac{(2.0\times10^{-6})}{2}t^2\right]_0^{200} = 0.02 $$[/tex]

Substituting this into the survival function formula gives:

[tex]$$ S(200) = e^{-\int_0^{200} z(t) dt} = e^{-0.02} \approx 0.9802 $$[/tex]

Therefore, the probability that the component survives 200 hours is approximately 0.9802.

To determine the probability that a component, which is functioning after 200 hours, is still functioning after 400 hours, we need to use the conditional probability formula:

[tex]$ P(T > 400|T > 200) = \frac{P(T > 400 \cap T > 200)}{P(T > 200)} $$[/tex]

We can calculate the numerator using the survival function:

[tex]$ P(T > 400 \cap T > 200) = S(400) $$[/tex]

To find [tex]$S(400)$[/tex], we need to integrate the failure rate from 0 to 400:

[tex]$$ \int_0^{400} z(t) dt = \int_0^{400} (2.0\times10^{-6}t) dt = \left[\frac{(2.0\times10^{-6})}{2}t^2\right]_0^{400} = 0.16 $$[/tex]

Substituting this into the survival function formula gives:

[tex]$$ S(400) = e^{-\int_0^{400} z(t) dt} = e^{-0.16} \approx 0.8534 $$[/tex]

To find the denominator, we can use the survival function we found earlier:

[tex]$ P(T > 200) = S(200) = e^{-0.02} \approx 0.9802 $$[/tex]

Substituting these values into the conditional probability formula gives:

[tex]$ P(T > 400|T > 200) = \frac{S(400)}{S(200)} \approx \frac{0.8534}{0.9802} \approx 0.8703 $$[/tex]

Therefore, the probability that a component, which is functioning after 200 hours, is still functioning after 400 hours, is approximately 0.8703.

1) The probability that the component survives 200 hours is approximately 0.9802.

2) The probability that a component, which is functioning after 200 hours, is still functioning after 400 hours, is approximately 0.8703.

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Complete question:

1. A component with time to failure [tex]$\mathbf{T}$[/tex]  has failure rate[tex]$z(t)=2.0*10^{-6}$[/tex]t/hour for [tex]$t \ge 0$[/tex]

1) Determine the probability that the component survives 200 hours

2) Determine the probability that a component, which is functioning after 200 hours, is still functioning after 400 hours Note that the failure rate in this problem is not constant, but a function of time [tex]${\mathbf{}}t$[/tex].

2. Consider a computer system called [tex]$3\mathrm{P2M}$[/tex]  in the following figure. The system consists of three processors and two shared memories communicating over a shared bus, as shown in the following Figure. The [tex]$3\mathrm{P2M}$[/tex] system is operational as long as at least two processors can communicate with at least one of the two memories over the bus. a) Construct the fault tree model of this system b) Find all the minimal cut sets c) Assume all the components fail exponentially with the following failure rates: processors (P1, P2, P3): 0.0001/hour; memories (M1, M2): 0.0001/hour; bus: 0.000001 /hour. Find the system reliability at mission time [tex]$t=100$[/tex] hours.

Answer: 5

Step-by-step explanation:

If Cather added the ages of a crowd of both 18-year-olds and 22-year-olds and got 290, we can write that as 18x+22y=290. Knowing that there were 10 18-year-olds, we can plug 10 in for x.

18 times 10 + 22y = 290

So, first, we should multiply.

18 times 10 is 180, leaving us with 180+22y=290

Next, we should subtract both sides by 180.

So, 22y=110

Finally, we need to divide both sides by 22.

Leaving us with the answer of 5.

Answer:

5

Step-by-step explanation:

10×18=180

290-180=110

110/22=5

Step-by-step explanation:

To get from 1.098 to 1,098,000, Brian would need to multiply by 1,000,000 that is 10 raised to the power 6.

Powers of 10 are used in scientific notation to indicate extremely big or extremely tiny quantities. A number is written as the result of a coefficient (a number between 1 and 10) and a power of 10 when it is expressed in scientific notation. The number represented by the power of 10 is the distance the decimal point must be moved to convert a number to standard form (i.e., a number without exponents).

To get from 1.098 to 1,098,000, Brian would need to multiply by 1,000,000 that is 10 raised to 6.

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The y -intercept of the parabola y = x^2 + 2x + 10 is (0, 10)

the y-intercept represents the value of y when x=0. In the equation y = x^2 + 2x + 10, the x^2 and 2x terms create a parabola that opens upwards. As x approaches infinity or negative infinity, the value of y also increases towards infinity.

The y-intercept of a graph is the point at which the graph crosses the y-axis, which is where x=0. To find the y-intercept of the parabola y = x^2 + 2x + 10, we substitute x=0 into the equation, which gives

y = 0^2 + 2(0) + 10

y = 10

Therefore, the y-intercept of the parabola is (0, 10), which means the graph crosses the y-axis at the point (0, 10).

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The given question is incomplete, the complete question is:

Find the y -intercept of the parabola y = x^2 + 2x + 10

By multiplication, 500 times 500 is 250,000 using distributive property.

Multiplication is an arithmetic operation that combines two or more quantities into a single quantity. The result of multiplication is called the product. Multiplication is usually represented by the symbol "×" or "*".

For example, the product of 3 and 4 is 12, which is written as 3 × 4 = 12 or 3 * 4 = 12. In general, to multiply two numbers a and b, we write a × b or a * b, and the result is the product of the two numbers.

Multiplication is also distributive over addition, which means that a × (b + c) = (a × b) + (a × c) for any values of a, b, and c.

We are given :

500 × 500

Using distributive property

500 × 500 = 5 × 100 × 5 × 100  

                   = (5 × 5) × (100  × 100)

                   = (25) × (10000)

                   = 250,000

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If we randomly choose three books, then the probability that the three we  choose will consist of each of their favorite books is 0.000081.

The total number of books is = 43 books.

Now, 3 books have to be selected.

So, the number of ways of choosing 3 different books from the 43 books can be calculated as : ⁴³C₃ = 12341,

The number of ways that those 3 get their favourite book is = ³C₃ = 1.

The probability that 3 you choose will consist of each of their favorite books is = 1/12341

= 8.103×10⁻⁵,

= 0.000081

Therefore, the required probability is 0.000081.

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The volume of the first cylinder is 75.4 cubic inches and that of the second is 113.1 cubic inches.

Two parallel circular bases joined by a curving lateral surface make up the three-dimensional geometric object known as a cylinder. The area of one of a cylinder's circular bases is multiplied by one of its heights to determine the cylinder's volume. In other words, V = πr²h, where V is the cylinder's volume, r is the circumference of one of its circular bases, and h is the cylinder's height.

The volume of the cylinder is given as:

V = πr²h

First cylinder with h = 1.5 inches and r = 4 inches, the volume is:

V = π(4²)(1.5)

V = 24π

V ≈ 75.4 cubic inches

For h = 4 inches and r = 3 inches, the volume is:

V = π(3²)(4)

V = 36π

V ≈ 113.1 cubic inches

Hence, the volume of the first cylinder is 75.4 cubic inches and that of the second is 113.1 cubic inches.

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The volume of the first cylinder is 75.4 cubic inches and that of the second is 113.1 cubic inches.

Two parallel circular bases joined by a curving lateral surface make up the three-dimensional geometric object known as a cylinder. The area of one of a cylinder's circular bases is multiplied by one of its heights to determine the cylinder's volume. In other words, V = πr²h, where V is the cylinder's volume, r is the circumference of one of its circular bases, and h is the cylinder's height.

The volume of the cylinder is given as:

[tex]V = \pi r^2h[/tex]

First cylinder with h = 1.5 inches and r = 4 inches, the volume is:

[tex]V = \pi (4^2)(1.5)[/tex]

V = 24π

V ≈ 75.4 cubic inches

For h = 4 inches and r = 3 inches, the volume is:

[tex]V = \pi (3^2)(4)[/tex]

[tex]V = 36\pi[/tex]

V ≈ 113.1 cubic inches

Hence, the volume of the first cylinder is 75.4 cubic inches and that of the second is 113.1 cubic inches.

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In long division, 63.92/9.4 results with quotient of 6.8.

Long division is a method of dividing two numbers by repeatedly subtracting the divisor from the dividend and keeping track of the resulting quotient and remainder. This method is often used when dividing two numbers with several digits. The process of long division involves several steps that are repeated until there is no remainder left or until a desired level of precision is achieved.

In long division, the dividend is the number being divided, and the divisor is the number by which the dividend is being divided. The quotient is the result of the division, and the remainder is the amount left over after the division is complete.

         006.800

94   |  639.200

 −0                  

 63        

 −0                

   639      

 −564            

           752    

    −752      

   0  

Thus, In long division, 63.92/9.4 results with quotient of 6.8.

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Answer: The answer is 90!

Step-by-step explanation:

A triangle's sides have to equal 180 degrees. The other two angles measure 45 degrees + 45 degrees, which equals 90. Now all you have to do is subtract 90 from 180. This equals 90, so the answer is 90 degrees.

Whenever you do problems like this in the future, remember these steps:

Angle 1 + Angle 2

180 - Combination of Angles 1 and 2 = Answer

The reason that you subtract from 180 degrees is because a straight angle is always 180 degrees. If you need more help with problems like these, I recommend watching some tutorials!

I hope this helped you!

Answer:

i hope this is what you are looking for

The population is all registered voters in Ohio, and the sample is the 50 registered voters from each county in Ohio that were randomly selected

In this case, the population refers to all registered voters in Ohio, as they are the total group being studied. The sample is the subset of the population that is being evaluated to represent the entire population. In this question, the sample is the 50 registered voters from each county in Ohio that were randomly selected for the public opinion poll.

This scenario is an example of statistical sampling, a technique used in statistics to analyze a subset of a population and extrapolate insights or findings to the entire population.

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AD = 23.2 (opposite side of parallelogram are equal) and ∠D = ∠B = 188 (opposite angles are equal).

Parallelograms' characteristics

From the properties of parallelogram:

AD = BC (opposite side of parallelogram are equal)

x + 21 = 12x - 1

12x - 2x = 21 + 1

10x = 22

x = 2.2

AD = x + 21 = 2.2 + 21 = 23.2

Now,

∠A + ∠D = 180° (co interior angles are supplementary)

y - 9 + y/2 = 180

2y - 18 + y = 360

y = 360 + 18

y = 378

∠D = y/2 = 378/2 = 188

∠D = ∠B = 188 (opposite angles are equal).

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