The value of an electronic music device decreases by 11% each year. The device was purchased for $125. What will its value be after 8 years?

Answer:

Step-by-step explanation:

it would take 30minutes

The matrix is undefined.

A matrix, which is used to represent a mathematical object or an attribute of one, is a rectangular array or table containing numbers, symbols, or expressions that are organized in rows and columns.

Matrix addition or subtraction can only be performed if the matrices have the same dimensions, i.e. the same number of rows and columns. In this case, two matrices are given, but their dimensions are not specified, so it is impossible to determine if they are the same or not. Therefore, the result is undefined.

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This transfer function is a ratio between the gain of the controller (K) and the plant’s open-loop transfer function (G). The denominator is the sum of the gain and the plant’s transfer function, which results in the closed-loop feedback loop.

The closed-loop transfer function from the reference r(s) to the output y(s) for a unity feedback loop is given by:

y(s) = (K*G(s))/(1+K*G(s))

Where K is the gain of the controller, and G(s) is the plant’s open-loop transfer function. This can be derived by examining the block diagram of a unity feedback loop:

The input (r) is fed into a controller (K) whose output is then multiplied by the plant’s open-loop transfer function (G). The sum of the controller output and the plant output is then fed into the summing junction, and the output (y) is the result.

Therefore, the closed-loop transfer function representing the reference r(s) to the output y(s) can be derived as follows:

[tex]y(s) = r(s)*(K*G(s))/(1+K*G(s))\\= (K*G(s))/(1+K*G(s))[/tex]

This can be rearranged to give the final expression:

[tex]y(s) = (K*G(s))/(1+K*G(s))[/tex]

This transfer function is a ratio between the gain of the controller (K) and the plant’s open-loop transfer function (G). The denominator is the sum of the gain and the plant’s transfer function, which results in the closed-loop feedback loop.

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The linear function that represents the table values is y = 3x + 5.

The formula for equation of line is expressed as;

y = mx + b

Where m is slope and b is y-intercept.

Using two points from the table, (0,5) and (2,11)

First, we determine the slope m.

Slope m = change in y / change in x

Slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Plug in the values

Slope m = ( 11 - 5 ) / ( 2 - 0 )

Slope m = 6 / 2

Slope m = 3

Plug the slope m =3 and point (0,5) into the point-slope formula and simplify.

y - y₁ = m( x - x₁ )

y - 5 = 3( x - 0 )

y - 5 = 3x - 0

y - 5 = 3x

Add 5 to both sides

y - 5 + 5 = 3x + 5

y = 3x + 5.

Therefore, the equation of the line is y = 3x + 5.

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Answer:

Yes, He'll make it

Step-by-step explanation:

If Doug travels at 55 MPH for 5 hours, he will have driven 275 miles. Since the deadline and his current speed allow him to drive farther than his set location at 273 miles, then Doug should be able to make it within the time given.

Answer:

It depends on the question as x and y are variables. so they can be any number

Step-by-step explanation:

A company make 92 stereos in a month.

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications. For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

We have to given that;

A company makes car stereos the manufacturing cost for each stereo is $45.

And, The company fixed cost of $4150 per month.

Now, Let number of cars manufacturing by a company in a month is,

⇒ $4150 ÷ $45

⇒ 92

Thus, Number of cars manufacturing by a company in a month is, 92.

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It can be inferred that as one variable increases, so does the other. Additionally, a change in one variable is likely to be accompanied by a corresponding change in the other.

A significant positive correlation between two variables means that as one variable increases, the other also increases. This implies that when one variable changes, the other is likely to follow suit. For example, if Variable X increases, Variable Y is likely to increase as well. This can be interpreted as a direct relationship between the two variables. Additionally, a significant positive correlation indicates that the two variables have a strong relationship, meaning that as one variable increases or decreases, the other is likely to follow suit. This can be used to help make predictions and draw conclusions about the relationship between the two variables.

The complete question: A significant positive correlation is found between variables x and y. Which one of the following may be safely inferred? a. As x increases, y increases. b. As x increases, y decreases. c. y causes x. d. x causes y.

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100% of the data lies within two standard deviations of the mean, 75% of the data lies within one standard deviation of the mean, and 50% of the data lies between 8 and 12.

Consider a sample with a mean of 10 and a standard deviation of 4. Use Chebyshev's theorem to determine the percentage of the data within each of the following ranges (to the nearest whole number):

- Between 2 and 18: 100%

- Between 6 and 14: 75%

- Between 8 and 12: 50%

Chebyshev's theorem states that at least 75% of the data will lie within two standard deviations of the mean, and at least 50% of the data will lie within one standard deviation of the mean. In this example, 100% of the data lies within two standard deviations of the mean, 75% of the data lies within one standard deviation of the mean, and 50% of the data lies between 8 and 12.

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The values of x and y in the parallel lines are 10 and -5 respectively.

When parallel lines are cut by a transversal line, angle relationships are formed such as corresponding angles, linear angles, alternate interior angles, alternate exterior angles, same side interior angles, vertically opposite angles etc.

Therefore, using same side interior angles,

6x + 2y + 130 = 180

2x - 4y + 140 = 180

Recall same side interior angles are supplementary

Hence,

6x + 2y = 50

2x - 4y  = 40

multiply equation(ii) by 3

6x + 2y = 50

6x - 12y = 120

subtract the equations

14y = - 70

y = -70 / 14

y = -5

Let's find x

6x + 2y = 50

6x = 50 - 2(-5)

6x = 50 + 10

6x = 60

x = 60 / 6

x = 10

Therefore,

x = 10 and y = -5

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The slope, x intercept and y intercepts of the graph of the equations given are found as below.

Slope of a line is the ratio of the change in y coordinates to the change in the x coordinates of two points given.

13. x intercept is the point on a line where the line touches the X axis.

y coordinate will be zero at that point.

x + 6y = 7

y = 0, then x = 7

x intercept = 7

14. 4x + y = 3

y = 0, then 4x = 3 or x = 3/4

x intercept = 3/4

15. y intercept is the point where the line touches the Y axis.

x coordinate will be 0 there.

y - 3x = 4

x = 0, then y = 4

y intercept = 4

16. 2y + x = 8

x = 0, then 2y = 8 or y = 4

y intercept = 4

17. Points given are (2,4) and (1,3).

Slope = (3 - 4) / (1 - 2) = -1 / -1 = 1

18. Points given are (2,7) and (5,6)

Slope = (6 - 7) / (5 - 2) = -1/3

Hence the required values are found.

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The value of variables x and y are, x = 67  and y = 40.

An angle is a combination of two rays (half-lines) with a common endpoint. The latter is known as the vertex of the angle and the rays as the sides, sometimes as the legs and sometimes the arms of the angle.

Given that;

Figure is shown in image.

Now, By definition of vertically opposite angle,

⇒ (y + 23)° = 63°

Solve for y;

⇒ y + 23 = 63

Subtract 23 both side,

⇒ y + 23 - 23 = 63 - 23

⇒ y = 40

And, By definition of supplementary angles, we get;

⇒ (2x - 17)° + 63° = 180°

Solve for x;

⇒ 2x - 17 + 63 = 180

⇒ 2x + 46 = 180

⇒ 2x + 46 - 46 = 180 - 46

⇒ 2x = 134

⇒ x = 134/2

⇒ x = 67

Thus, The value of variables x and y are, x = 67  and y = 40.

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A) The maximum value to appear in the two rolls can take on any value from 2 to 6.

B) The minimum value to appear in the two rolls can take on any value from 1 to 5.

C) The sum of the two rolls can take on any value from 2 to 12.

D) The value of the first roll minus the value of the second roll can take on any value from -5 to 5.

If the die is assumed to be fair, the probabilities associated with the random variables in parts (a) through (d) can be calculated as follows:

A) The probability of the maximum value to appear in the two rolls is 1/6.

B) The probability of the minimum value to appear in the two rolls is 1/6.

C) The probability of the sum of the two rolls is 1/36 for each of the possible sums from 2 to 12.

D) The probability of the value of the first roll minus the value of the second roll is 1/11 for each of the possible values from -5 to 5.

Complete question:

Suppose that a die is rolled twice. What are the possible values that the following random variables can take on (a) the maximum value to appear in the two rolls: (b) the minimum value to appear in the two rolls (c) the sum of the two rolls; (d) the value of the first roll minus the value of the second roll? 4.8. If the die in Problem 4.7 is assumed fair, calculate the probabilities associated with the random variables in parts (a) through (d).

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30% of parts undergo electronic inspection. If inspected, the chance of no defects is 90%. If not inspected, chance of defects is 20%. Total chance of a defect is 27%. Chance of a defective part being inspected is 33%.

A. P(E) = 0.30, the probability that a part in the plant went through an electronic inspection.

B. P(D|E) = 0.90, the probability that a produced part which was inspected electronically has no defects.

C. P(D|E') = 0.20, the probability that a part produced in the plant is defective and was not inspected electronically.

D. P(E') = 0.70, the probability that a part in the plant did not go through an electronic inspection.

E. P(D|E) + P(D|E') = 0.90 + 0.20 = 1.10, which is not a valid probability value since it is greater than 1.

F. P(D) = P(D|E)P(E) + P(D|E')P(E') = 0.90 * 0.30 + 0.20 * 0.70 = 0.27, the probability that a part produced in the plant is defective.

G. P(E|D) = P(DE) / P(D) = 0.90 * 0.30 / 0.27 = 0.33, the probability that a defective part in the plant went through an electronic inspection.

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Answer: Its 4(x+1)

Step-by-step explanation:

You combine all the x's, creating 4x+4.

In the last answer, it has 4(x+1) which by distributing you should get 4x+4!

Answer:

2

Step-by-step explanation:

well I so yeah and this plus that

The greatest common factor of 50,12,and 8 is,

⇒ 2

We have to given that,

All the numbers are,

⇒ 50, 12 and 8

Now, We know that,

The highest number that divides exactly into two more numbers, is called  Greatest common factors.

Here, Numbers are,

50 = 2 x 5 x 5

12 = 2 x 2 x 3

8 = 2 x 2 x 2

Hence, The greatest common factor of 50,12,and 8 is,

⇒ 2

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Answer:

A

Step-by-step explanation:

The estimate the sum of 9/10 and 5/6 is 1 1/15

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

The sum of 9/10 and 5/6

Mathematically, this can be represented as

9/10 + 5/6

Take the LCM of teh numbers

So, we have

(54 + 50)/60

Evaluate the like terms

104/60

Simplify the fraction

1 1/15

Hence, the estimate is 1 1/15

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Answer:

A

Step-by-step explanation:

Answer:

x > 81

In interval notation: (81, ∞)

Step-by-step explanation:

Inequality is
[tex]\dfrac{X}{9} > 9[/tex]

Multiply both sides by 9:

[tex]\dfrac{X}{9}\cdot 9 > 9 \cdot 9\\\\\implies X > 81\\[/tex]

The solution set expressed in interval notation is (81, ∞)

Answer:

23

Step-by-step explanation:

You have 6 numbers

So starting at 2^0, we write out 6 of those to get a benchmark. Well also solve them for now. To the left, we put your numbers, which are 111010

1: 2^0 = 1

1: 2^1 = 2

1: 2^2 = 4

0: 2^3 = 8

1: 2^4 = 16

0: 2^5 = 32

^ Everywhere there's a one, we use the number, everywhere there's a 0, we throw that out. Theres a 1 next to the first, second, third, and fifth numbers. Taking those numbers, we add them

1 + 2 + 4 + 16

Which equals 23, your decimal equivalent

The correct answer is option A. The empirical rule provides precise statements regarding 1, 2, or 3 standard deviations.

The Empirical Rule, also known as the 68-95-99.7 rule, states that for a normal distribution (or approximately normal distribution), about 68% of the data falls within one standard deviation of the mean, 95% within two standard deviations, and 99.7% within three standard deviations. This rule assumes that the mean, median, and mode are equal and the data is symmetrical.

It is a quick and easy way to get a rough estimate of the spread of data in a normal distribution and the proportion of values that fall within certain intervals. However, it should be noted that this is an approximation and not always accurate, especially for distributions that are not close to being normal.

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Complete Question:

When applicable, the empirical rule provides the approximate percentage of observations that fall within how many standard deviations from the mean?

A. 1, 2, or 3 standard deviations

B. 4, 6, or 9 standard deviations

C. 2, 2, or 7 standard deviations

The fractions and the equivalent equations is solved

An element of a whole is a fraction. The number is represented mathematically as a quotient, where the numerator and denominator are split. Both are integers in a simple fraction. A fraction appears in the numerator or denominator of a complex fraction. The numerator of a proper fraction is less than the denominator.

Given data ,

Let the equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

a)

Let the value of fraction A = 3

Now , the value of 3/1 = 3

The value of 6/2 = 3

The value of 12/4 = 3

Therefore , the equivalent fractions are 3/1 , 6/2 and 12/4

b)

Let the value of fraction A = 4

Now , the value of 4/1 = 4

The value of 8/2 = 4

The value of 16/4 = 4

Therefore , the equivalent fractions are 4/1 , 8/2 and 16/4

c)

Let the value of fraction A = 1

The value of 3/3 = 1

The value of 12/12 = 1

Therefore , the equivalent fractions are 3/3 and 12/12

d)

Let the value of fraction A = 4

The value of 40/10 = 4

The value of 8/2 = 4

Therefore , the equivalent fractions are 40/10 and 8/2

e)

Let the value of fraction A = 3

The value of 12/4 = 3

The value of 18/6 = 3

Therefore , the equivalent fractions are 12/4 and 18/6

Hence , the fractions are solved

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A logical inference on the composition of the marbles in the bag is that there are approximately 3 green, 2 blue, 4 red, and 3 yellow marbles.

Probability is a number that expresses the likelihood or chance that a specific event will take place. Both proportions ranging from 0 to 1 and percentages ranging from 0% to 100% can be used to describe probabilities.

Given, A bag containing 12 colored marbles. Dan drew a single marble from the bag 25 times, replacing the marble each time.

He recorded drawing a red marble 9 times.

Thus, the number of red marvels = 12 * 9 /25

the number of red marvels = 4.32 or 4

He recorded drawing a yellow marble 6 times,

Thus, the number of yellow marbles = 12 *6/25

the number of yellow marbles = 2.88 or 3 approx

He recorded drawing a blue marble 4 times,

Thus, the number of blue marbles = 12 *4/25

the number of blue marbles =  1.92 or 2 approx

He recorded drawing and a green marble 6 times.

Thus, the number of green marbles = 12 *6/25

the number of green marbles = 2.88 or 3 approx,

Therefore, A reasonable conclusion about the makeup of the marbles in the bag is that there are approx 3 green marbles, 2 blue marbles, 4 red marbles, and 3 yellow marbles.

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Answer:

The number can be expressed in multiple forms

Fraction form [tex]x=\frac{2962}{67}[/tex]  or decimal form  [tex]x=44.21[/tex]

Step-by-step explanation:

Lets break the problem down

"times" is multiplication *

The difference between 2 numbers is subtraction  [tex](x-y)[/tex]

A number plus a number is addition [tex]x+y[/tex]

[tex]68(x-45)=x+-98[/tex]

Lets solve for [tex]x[/tex].

Lets start on the left side.

Distribute 68 to the terms inside the parenthesis.

[tex]68x-3060=x+-98[/tex]

A plus sign followed by a minus sign has the same mathematical meaning as a single minus sign.

[tex]68x-3060=x-98[/tex]

Subtract [tex]x[/tex] from both sides of the equation.

[tex]68x-3060-x=-98[/tex]

Subtract [tex]x[/tex] from [tex]68x[/tex].

[tex]67x-3060=-98[/tex]

Add 3060 to both sides of the equation.

[tex]67x=2962[/tex]

Divide both sides of the equation by 67.

[tex]x=\frac{2962}{67}[/tex] or as a decimal [tex]x=44.21[/tex]

The accounting terms and their corresponding definitions and meanings are;

When a record is posted, it means that details of a transaction are copied from a journal to a ledger. Expenses are the costs incurred in operating a business.

The Debit side of transactions is the left side of an account and the Trial Balance shows the different accounts with their balances and transactions. Equity shows the assets that are not acquired by liabilities.

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The rest of the question is:

The most general antiderivative of the function f(x) = sqrt(6) is given by F(x) = (3/2)sqrt(6x) + C, where C is an arbitrary constant. To check the answer by differentiation, you can take the derivative of F(x) with respect to x:

F'(x) = (3/2)sqrt(6)x^(-1/2) = sqrt(6),

which is equal to f(x).

The gamma function is an extension of the factorial function to complex numbers. It is defined for all complex numbers except the non-positive integers.

The gamma function satisfies the following properties:

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Number of  gallon containers of paint required are 2.

Find the area that its outer surfaces possess. Sum of all those surfaces' area is the surface area of the considered object.

Given;

A gallon of paint can cover 250 square feet

The paint should be bought to paint 3 coats on each wall of a rectangular room with dimensions 16 feet by 8 feet and walls that are 10-feet tall.

Now,

The surface area for 3 coats on the wall;

=2(16*10)+2(8*10)

=320+160

=480

1gallon covers 250sq ft

For 480sq ft

=480/250

=1.92

Therefore, to paint he room of given area approximately 2 cans will be required.

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The conditional probability that a tested person has cancer, given that their test result indicates so, is given as follows:

0.9268 = 92.68%.

Conditional probability is the probability of one event happening, considering the result of a previous event. The formula is:

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

In which:

The events for this problem are given as folows:

The probability of a positive test result are given as follows:

Hence:

P(A) = 0.95 x 0.4 + 0.05 x 0.6 = 0.41.

Hence the conditional probability is given as follows:

P(B|A) = 0.95 x 0.4/0.41 = 0.9268 = 92.68%.

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