Quadrilateral DEFG is a rectangle, DH=4w+20, and GH=6w. What is GH?

Quadrilateral DEFG Is A Rectangle, DH=4w+20, And GH=6w. What Is GH?

Answers

Answer 1

The value of GH in the rectangle is 60 units.

How to find the side of a rectangle?

A rectangle is quadrilateral with opposite sides equal to each other and opposite sides parallel to each other.

Therefore, the diagonal of the rectangle divides the rectangle into congruent triangles.

Therefore,

DH = GH

4w + 20 = 6w

subtract 4w from both sides of the equation

4w  - 4w + 20 = 6w - 4w

20 = 2w

divide both sides of the equation by 2

w  =20 / 2

w = 10

Therefore,

GH  = 6(10)

GH = 60 units

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Related Questions

Solve 14 - 3m = 4m
m =

Answers

Answer:

The answer is m = 2 .

Step-by-step explanation:

14 - 3m = 4m

14 = 4m + 3m

14 = 7m

14/7 = m

2 = m

m = 2

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To solve for "m", we need to isolate the variable on one side of the equation.

We can start by moving the "3m" term to the right side of the equation by adding it to both sides:

14 - 3m + 3m = 4m + 3m

Simplifying the left side of the equation, we get:

14 = 7m

Finally, we can isolate "m" by dividing both sides of the equation by 7:

14 ÷ 7 = 7m ÷ 7

2 = m

Therefore, the solution to the equation 14 - 3m = 4m is m = 2.

a sample of 1500 computer chips revealed that 31% of the chips do not fail in the first 1000 hours of their use. the company's promotional literature states that 29% of the chips do not fail in the first 1000 hours of their use. the quality control manager wants to test the claim that the actual percentage that do not fail is different from the stated percentage. find the value of the test statistic. round your answer to two decimal places.

Answers

The value of the test statistic, rounded off to two decimal places, is approximately 1.71.

To find the value of the test statistic, we'll use the following formula for a hypothesis test about a proportion:

Test statistic (z) = (sample proportion - null hypothesis proportion) / sqrt[(null hypothesis proportion * (1 - null hypothesis proportion)) / sample size]

Given:
Sample size (n) = 1500
Sample proportion (p-hat) = 0.31 (31% do not fail)
Null hypothesis proportion (p₀) = 0.29 (29% do not fail, as stated in the company's promotional literature)

Now, let's plug these values into the formula:

z = (0.31 - 0.29) / sqrt[(0.29 * (1 - 0.29)) / 1500]

z = (0.02) / sqrt[(0.29 * 0.71) / 1500]

z = 0.02 / sqrt[0.2059 / 1500]

z = 0.02 / sqrt[0.00013727]

z = 0.02 / 0.01172

z ≈ 1.71 (rounded to two decimal places)

So, the test statistic (z) is approximately 1.71.

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The Gulf Trading Company plans to purchase an embroidery machine for their sewing unit. Two kinds of machines are available on the market (A & B). A 4-member team of experts surveyed the market, visited and analyzed both the versions and determined which one to choose based on the variance test, based on the following performance analysis data.: Machine A Machine B 33 26 22 35 15 20 25 40 21 33 50 24 42 40 43 45 35 26 17 22 Which machine the company would prefer using variance (statistical tool). Justify your answer

Answers

To determine which embroidery machine to purchase, we can compare the variances of the two machines using a variance test. The null hypothesis is that the variances are equal, and the alternative hypothesis is that they are not equal.

We can use the F-test to compare the variances:

[tex]F= \frac{s1^{2} }{s2^{2} }[/tex]

where [tex](s1)^{2}[/tex] and [tex](s2)^{2}[/tex] are the sample variances of machines A and B, respectively.

First, we need to calculate the sample variances:

[tex]s1^2 = ((33-28.55)^2 + (26-28.55)^2 + ... + \frac{(22-28.55)^2) }{20-1} = 150.96[/tex]

[tex]s2^2 = ((15-29.7)^2 + (20-29.7)^2 + ... + \frac{(22-29.7)^2) }{20-1} = 132.93[/tex]

Next, we calculate the F-statistic:

[tex]F= \frac{(s1)^{2} }{(s2)^{2} } = \frac{150.96}{132.93} = 1.135[/tex]

The degrees of freedom for the numerator and denominator are 19 and 19, respectively.

Using an F-table or calculator, we can find that the critical F-value at a 5% level of significance and 19 degrees of freedom for both the numerator and denominator is 2.14.

Since the calculated F-value of 1.135 is less than the critical F-value of 2.14, we fail to reject the null hypothesis that the variances are equal. Therefore, there is not enough evidence to suggest that the variances of machines A and B are significantly different.

Based on this analysis, we cannot make a recommendation for which embroidery machine to purchase based on variance alone. We may need to consider other factors such as cost, quality of embroidery, ease of use, and maintenance requirements before making a final decision.

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Answer the following questions: (Without calculator)a) Let A= {3,4,5,6,7,8} and B={1,3,5,7}. How many elements has (AUB) \ (AnB)?b) What are the values of sin(pi/4) and cos(pi/3)?

Answers

(a)  (AUB) \ (AnB) has a total of 4 elements.

(b) sin(pi/4) = 1/sqrt(2)

cos(pi/3) = 1/2

a) To find the elements in (AUB) \ (AnB), we first need to find AUB and AnB.
AUB is the set of all elements that are in A or B or both.

Therefore, AUB = {1,3,4,5,6,7,8}.

AnB is the set of all elements that are in both A and B.

Therefore, AnB = {3,5,7}.

To find (AUB) \ (AnB), we need to remove the elements in AnB from AUB.

Therefore, (AUB) \ (AnB) = {1,4,6,8}.
Thus, (AUB) \ (AnB) has 4 elements.

b) sin(pi/4) = 1/sqrt(2) and cos(pi/3) = 1/2.
We can remember these values using the unit circle.

At pi/4 radians, the point on the circlunit e is located at (sqrt(2)/2, sqrt(2)/2), which gives us a sine value of 1/sqrt(2) and a cosine value of 1/sqrt(2).

At pi/3 radians, the point on the unit circle is located at (1/2, sqrt(3)/2), which gives us a sine value of sqrt(3)/2 and a cosine value of 1/2.

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Suppose you have a sequence of rigid motions to map AXYZ to APQR. Fill in the blank for each transformation.

Answers

Answer:I am sorry,I don't have an answer for that

Step-by-step explanation:

I need the 10 points sorry

A rectangle with a perimeter of 16 units is dilated by a scale factor of 44. Find the perimeter of the rectangle after dilation. Round your answer to the nearest tenth, if necessary.

Answers

The perimeter of the rectangle after dilation is 704 units.

Given that,

A rectangle with a perimeter of 16 units is dilated by a scale factor of 44.

Original perimeter = 16 units

Scale factor = 44

The formula to find the perimeter of a rectangle is,

Perimeter = 2(l + w), where l is the length and w is the width.

Let original perimeter = 2(l + w) = 16 units

When the rectangle is dilated each dimension increase to 44.

l becomes 44l and w becomes 44w.

So perimeter becomes,

New Perimeter = 2 (44l + 44w)

                         = 2 × 44 (l + w)

                         = 44 × [2(l + w)]

                         = 44 × 16

                         = 704 units

Hence the perimeter of the rectangle is 704 units.

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A hyperbola has its center at 0,0, a vertex of 0,31, and an asymptote of y=31/28x. Find the equation that describes the hyperbola.

Answers

The equation of the hyperbola is x² / 784 - y² / 961 = 1

Given data ,

The equation of a hyperbola in standard form with center at (h, k), horizontal axis, and vertical axis is given by:

(x - h)² / a² - (y - k)² / b² = 1

where (h, k) is the center of the hyperbola, "a" is the distance from the center to the vertices along the horizontal axis, and "b" is the distance from the center to the vertices along the vertical axis.

We have h = 0 and k = 0 since the hyperbola's centre is (0, 0). The vertical axis vertex lies at (0, 31), hence the distance between the centre and the vertex is given by b = 31.

y = (31/28)x is the equation for the hyperbola's asymptote

The asymptote's slope should be equal to b/a, where "a" denotes the distance between the centre and the vertices along the horizontal axis

31/28 = 31/a

Solving for "a", we get:

a = 28

x² / 784 - y² / 961 = 1

Hence , equation is x² / 784 - y² / 961 = 1

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Mr. Williams bought four Lions tickets for himself and his family. At the game bought food, water, and pop, which was $60. He spent a total of $542. How much did each ticket cost? Write an equation to represent this situation and find how much each ticket costs.

Answers

Answer:

542-60 equals 482. 482 divided by 4 is 120.5$

The Gotham City News is moving to a paywall subscription service rather than a free news website with unlimited access. If subscribers would like to access more than 10 articles per month, they will need to pay a monthly subscription fee of $16.v However, if they are also weekly subscribers of the print edition of the newspaper, they receive a 60% discount on the online subscription rate. The monthly rate for the print edition of the newspaper is $27. Based on market research, the Times believes that 30% of the households that order the print edition will also order the website subscription. While there are basically no variable costs to the website version, the print edition does cost $16 per month to print and deliver to households.If marketing research indicates that an average print only subscriber will only continue their subscription for 24 months if they don't also purchase the digital edition, what is the 3 year CLV of a current print edition customer taking into consideration those that will choose print only (24 month) and those that choose to add the digital edition (who then drop the print after 16 months)?

Answers

The 3 year CLV of a current print edition customer is $22,560, taking into consideration those that will choose print only (24 month) and those that choose to add the digital edition (who then drop the print after 16 months).

To calculate the 3 year CLV of a current print edition customer, we need to consider two scenarios: those who choose print only and those who add the digital edition.

For those who choose print only, the CLV is calculated as follows:
CLV = (monthly rate - variable cost) x average lifespan x retention rate
CLV = ($27 - $16) x 24 months x 1
CLV = $264

For those who add the digital edition, the CLV is calculated as follows:
CLV = (monthly rate - variable cost) x average lifespan x retention rate
CLV = ($16 - $0) x 16 months x 0.5
CLV = $128

To calculate the total CLV, we need to take into account the 30% of print edition subscribers who also order the website subscription. Assuming a total of 100 print edition subscribers, 30 of them will also order the website subscription.

Total CLV = (print only CLV x 70) + (digital edition CLV x 30)
Total CLV = ($264 x 70) + ($128 x 30)
Total CLV = $18,720 + $3,840
Total CLV = $22,560

Therefore, we can state that the 3 year CLV of a current print edition customer is $22,560, taking into consideration those that will choose print only (24 month) and those that choose to add the digital edition (who then drop the print after 16 months).

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Question 2 ( 7 Marks): Use substitution method to evaluate the following integral: I= ∫x √x²+1 dx

Answers

The value of the integral is (x²+1)^(3/2)/3 + C.

To evaluate the integral:

I = ∫x √(x²+1) dx

we can use substitution u = x²+1, which implies du/dx = 2x or dx = du/2x.

Substituting these values in the integral, we get:

I = ∫x √(x²+1) dx

Let u = x²+1, then

du/dx = 2x -> dx = du/2x

Substituting, we get:

I = ∫√u (du/2)

I = (1/2) ∫u^(1/2) du

I = (1/2) * (2/3) u^(3/2) + C

I = u^(3/2)/3 + C

I = (x²+1)^(3/2)/3 + C

Therefore, the value of the integral is (x²+1)^(3/2)/3 + C.

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Classify triangle ABD by its sides and then by its angles.

Select the correct terms from the drop-down menus.

Answers

The sides of Triangle ABD are AB, BD, DA.

The angles of Triangle ABD are <ABD, <ADB, <BAD.

We have triangle ABD.

Now, Each triangle have three sides then sides of Triangle ABD are

AB, BD, DA

and, all angles have three angles then the angles of Triangle ABD are

<ABD, <ADB, <BAD

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7. How many more patients who were part of the cds protocol during the last year have an identified smoking status than patients who were not included in the cds protocol, i. E. Not seen in the clinic over the last 12 months?

Answers

The number of patients who were not seen in the clinic over the last 12 months. We also need to know the proportion of patients in each group who have an identified smoking status.

Let's say that there were a total of "N" patients seen in the clinic over the last 12 months, and "M" of them were part of the CDS protocol. Let's also say that "p1" proportion of patients in the CDS group had an identified smoking status, and "p2" proportion of patients in the non-CDS group had an identified smoking status.

The number of patients in the CDS group with an identified smoking status would be M x p1, and the number of patients in the non-CDS group with an identified smoking status would be (N-M) x p2.

To calculate the difference, we can subtract the number of patients in the non-CDS group with an identified smoking status from the number of patients in the CDS group with an identified smoking status:

M x p1 - (N-M) x p2

This would give us the number of additional patients in the CDS group with an identified smoking status compared to the non-CDS group.

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Which of the factors listed below determine the width of a confidence interval? Select all that apply.The chosen level of confidence.The population mean.The relative size of the sample mean.The size of the standard error.

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The factors that determine the width of a confidence interval are: The chosen level of confidence, The population mean, The relative size of the sample mean, The size of the standard error.

The factors that determine the width of a confidence interval are:

The chosen level of confidence: The higher the level of confidence required, the wider the interval will be.

The size of the standard error: A larger standard error will result in a wider interval.

The size of the sample: A smaller sample size will result in a wider interval.

The population mean does not directly determine the width of a confidence interval, but it can affect the calculation of the standard error. The relative size of the sample mean is not a factor that determines the width of a confidence interval.

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he sum of two numbers is 3 . the larger number minus twice the smaller number is zero. find the numbers.

Answers

The smaller number is 1 and the larger number is 2. To find these numbers, we used algebraic equations and solved for one variable in terms of the other.

To solve this problem, we need to use algebraic equations. Let's call the smaller number "x" and the larger number "y".

From the problem, we know that:

x + y = 3 (the sum of two numbers is 3)

y - 2x = 0 (the larger number minus twice the smaller number is zero)

Now, we can solve for one variable in terms of the other:

y = 2x (by rearranging the second equation)

Substituting this into the first equation, we get:

x + 2x = 3

3x = 3

x = 1

Now that we know x is 1, we can use the equation y = 2x to find y:

y = 2(1) = 2

Therefore, the two numbers are 1 and 2.

In summary, the smaller number is 1 and the larger number is 2. To find these numbers, we used algebraic equations and solved for one variable in terms of the other. It's important to carefully read and understand the problem and to keep track of the information given.

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In class, we have talked about the maximum entropy model. For learning the posterior probabilities Pr(y∣x)=p(y∣x) for y=1,…,K given a set of training examples (xi​,yi​),i=1,…,n, we can maximize the entropy of the posterior probabilities subject to a set of constraints, i.e., p(y∣xi​)max​ s.t. ​−i=1∑n​y=1∑K​p(y∣xi​)lnp(y∣xi​)y=1∑K​p(y∣xi​)=1i=1∑n​nδ(y,yi​)​fj​(xi​)=i=1∑n​np(y∣xi​)​fj​(xi​),j=1,…,d,y=1,…,K​ where δ(y,yi​) is equal to 1 if yi​=y, and 0 otherwise, and fj​(xi​) is a feature function. Let us consider fj​(xi​)=[xi​]j​, i.e., the j-th coordinate of xi​. Please show that the above Maximum Entropy Model is equivalent to the multi-class logistic regression model (without regularization). (Hint: use the Lagrangian dual theory)

Answers

The above Maximum Entropy Model is equivalent to the multi-class logistic regression model as Z(xi) = ∑y=1K exp(θj fj(xi)). This is the softmax function, which is the basis for the multi-class logistic regression model.

The maximum entropy model can be formulated as follows:

Maximize: H(p) = - ∑i=1n ∑y=1K p(y|xi) ln p(y|xi)

Subject to:

∑y=1K p(y|xi) = 1, for i = 1,...,n

∑y=1K p(y|xi) δ(y,yi) fj(xi) = ∑y=1K p(y|xi) fj(xi), for j = 1,...,d and i = 1,...,n

where δ(y,yi) is the Kronecker delta function.

Using the Lagrangian dual theory, we can rewrite the objective function as:

L = - ∑i=1n ∑y=1K p(y|xi) ln p(y|xi) + ∑i=1n λi(∑y=1K p(y|xi) - 1) + ∑i=1n ∑j=1d θj(∑y=1K p(y|xi) δ(y,yi) fj(xi) - ∑y=1K p(y|xi) fj(xi))

where λi and θj are the Lagrange multipliers.

Taking the derivative of L with respect to p(y|xi) and setting it to zero, we get:

p(y|xi) = exp(θj fj(xi)) / Z(xi)

where Z(xi) is the normalization factor:

Z(xi) = ∑y=1K exp(θj fj(xi))

Substituting this into the constraint ∑y=1K p(y|xi) = 1, we get:

∑y=1K exp(θj fj(xi)) / Z(xi) = 1

which can be simplified to:

Z(xi) = ∑y=1K exp(θj fj(xi))

This is the softmax function, which is the basis for the multi-class logistic regression model.

Therefore, we have shown that the maximum entropy model with feature function fj(xi)=[xi]j is equivalent to the multi-class logistic regression model without regularization.

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3. What is the radius of the circle?

Answers

The value of radius of the circle is,

⇒ r = 7 units

Since, The circle is a closed two dimensional figure , in which the set of all points is equidistance from the center.

We have to given that;

A circle is shown in figure.

Now, We ca formulate the value of radius of the circle is,

⇒ r = 8 - 1

⇒ r = 7 units

Thus, The value of radius of the circle is,

⇒ r = 7 units

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VIL ATC $650 $600 marginal cost (MC) curve, the average variable cost (AVC) curve, and the marginal revenue (MR) curve (which is also the market price) for a perfectly competitive firm that produces terrible towels. Answer the three accompanying questions, assuming that the firm is profit-maximizing and does not shut down in the short run. AVC Price $400 - MR=P $300 What is the firm's total revenue? 205 260 336 365 Quantity What is the firm's total cost? What is the firm's profit? (Enter a negative number for a loss.) $

Answers

The firm's total revenue is $104,000, its total cost is $156,000, and its profit (or loss) is -$52,000.

Finding the profit-maximizing output.
According to the information provided,

The MR (market price)  $400.

Locating the point where the MC curve intersects with the MR curve at a price of $400.

Let's assume the quantity at this intersection = 260 (since 205 and 365 are not mentioned as intersecting points).

Total revenue

= Price × Quantity
= $400 × 260
= $104,000

Total cost

= ATC × Quantity
=$600 × 260
= $156,000

Profit

= Total revenue - Total cost
= $104,000 - $156,000
= -$52,000

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Consider the curve with parametric equations y=tand x = 3t-. eliminating the parameter 1, find the following: dy/dt

Answers

The derivative of y with respect to t is simply 1.

To eliminate the parameter t and express y in terms of x, we can solve for t in terms of x from the second equation:

x = 3t - 1

3t = x + 1

t = (x + 1)/3

Substituting this expression for t into the first equation, we get:

y = (x + 1)/3

Now we can differentiate y with respect to t and use the chain rule:

dy/dt = dy/dx * dx/dt

Since y is now expressed as a function of x, we can differentiate it with respect to x:

dy/dx = 1/3

And from the second equation, we have:

dx/dt = 3

Therefore:

dy/dt = (dy/dx) * (dx/dt) = (1/3) * 3 = 1

So the derivative of y with respect to t is simply 1.

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In a survey, 30 people were asked how much they spent on their childrs last day were roughly bell-shaped with a mean of 543 and standard deviation of $5. Find the margin of error at a 90% confidence level.
Do not round until your final answer. Give your answer to three decimal places.

Answers

The margin of error is 1.897.

We can use the formula for margin of error:

[tex]margin of error = z (\frac{standard deviation}{\sqrt{sample size} } )[/tex]

At a 90% confidence level, the corresponding z-value is 1.645 (from a standard normal distribution table).

Plugging in the values, we get:

[tex]margin of error = 1.645 (\frac{5}{\sqrt{30} } )[/tex]

= 1.897

Rounding to three decimal places, the margin of error is 1.897.

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I need
2 examples for Multigrid Method for Linear system
( AMG
linear.system )
Please
help me

Answers

Hi! I'd be happy to help you with two examples of multigrid methods for linear systems.

1. Geometric Multigrid Method (GMG): This is a numerical method that efficiently solves linear systems arising from the discretization of partial differential equations (PDEs). It employs a hierarchy of grids and combines coarse-grid correction with fine-grid relaxation to accelerate convergence.

2. Algebraic Multigrid Method (AMG): This is another approach to solve large linear systems, particularly those originating from PDE discretizations. Unlike GMG, AMG does not require any geometric information. It automatically generates a hierarchy of coarser grids by analyzing the structure of the given linear system, making it suitable for unstructured grids or problems without an evident geometric background.

Both methods are effective in solving linear systems with high efficiency and have various applications in areas like computational fluid dynamics, structural mechanics, and image processing.

Two examples of multigrid methods for the linear system are the geometric multigrid method and the algebraic multigrid method.

1. Geometric Multigrid Method (GMG): This is a numerical method that efficiently solves linear systems arising from the discretization of partial differential equations. It employs a hierarchy of grids and combines coarse-grid correction with fine-grid relaxation to accelerate convergence.

2. Algebraic Multigrid Method (AMG): This is another approach to solving large linear systems, particularly those originating from PDE discretizations. Unlike GMG, AMG does not require any geometric information. It automatically generates a hierarchy of coarser grids by analyzing the structure of the given linear system, making it suitable for unstructured grids or problems without an evident geometric background.

Both methods are effective in solving linear systems with high efficiency and have various applications in areas like computational fluid dynamics, structural mechanics, and image processing.

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The base of a cuboid is a square of side 11m. The height of the cuboid is 25m. Find its Volume.

Answers

Answer: 3025 m^3.

Step-by-step explanation:

Find each of the following probabilities when n independent Bernoulli trials are carried out with probability of success p.(a) the probability of no successes(b) the probability of at least one success(c) the probability of at most one success(d) the probability of at least two successes(e) the probability of no failures(f) the probability of at least one failure(g) the probability of at most one failure(h) the probability of at least two failures

Answers

The probability of at least two failures is 1 minus the probability of 0 or 1 failure, which is 1 - [p^n + nqp^(n-1)].

The probability of a success in one Bernoulli trial is given by p, and the probability of a failure is q = 1 - p.

(a) The probability of no successes is (1-p)^n.

(b) The probability of at least one success is 1 minus the probability of no successes, which is 1 - (1-p)^n.

(c) The probability of at most one success is the sum of the probabilities of 0 and 1 successes, which is (1-p)^n + np(1-p)^(n-1).

(d) The probability of at least two successes is 1 minus the probability of 0 or 1 success, which is 1 - [(1-p)^n + np(1-p)^(n-1)].

(e) The probability of no failures is the same as the probability of n successes, which is p^n.

(f) The probability of at least one failure is 1 minus the probability of no failures, which is 1 - p^n.

(g) The probability of at most one failure is the sum of the probabilities of 0 and 1 failures, which is p^n + nqp^(n-1).

(h) The probability of at least two failures is 1 minus the probability of 0 or 1 failure, which is 1 - [p^n + nqp^(n-1)].

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Which is 0. 54 converted to a simplified fraction?

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For a decimal number 0.54, the converted fraction from this decimal number is written as [tex]\frac{ 54}{100} [/tex]. After simplification, the required fraction is equals to the [tex]\frac{ 27}{50} [/tex].

A fraction is defined as a part of whole. It is expressed as a quotient, where the numerator is divided by the denominator. To convert a decimal to a fraction, first we place the decimal number over its place value. For example, in 0.4, the 4 is in the tenths place, so we place 4over 10 to create the equivalent fraction, 4/10. We can simplify this fraction. To write the decimal fraction in fraction form of the digits to the right of the decimal period (numerator) and a power of 10 (denominator).

We have a decimal number, 0.54. We convert it in a simplified fraction form. As we see decimal is placed on hundredth place. So, the required fraction is 54 over 100 or we can write [tex]\frac{ 54}{100} [/tex]. Simplify this fraction, dividing the denominator and numentor by 2 then, [tex]\frac{27}{50} [/tex]. Hence, required value is [tex]\frac{27}{50} [/tex].

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Evaluate the integral. Show that the substitution x = 4 sin(0) transforms / into / do, and evaluate I in terms of 0. Dx 1 / 7 = V16 - r? (Use symbolic notation and fractions where needed. Use C for the arbitrary constant. Absorb into C as much as possible. ) 1 = sin(0) + Incorrect

Answers

The integral solution is: ∫[tex](1/(7\sqrt{(16 - x^2)))} dx = (1/112) arcsin(x/4) + C.[/tex]

To evaluate the integral ∫[tex](1/(7\sqrt{(16 - x^2)))} dx[/tex] using the substitution x = 4 sin(θ), we can start by finding dx/dθ:

dx/dθ = 4 cos(θ)

∫[tex](1/(7\sqrt{(16 - x^2)))} dx[/tex]= ∫[tex](1/(7\sqrt{(16 - 16sin^2}[/tex](θ)))) ([tex]4cos[/tex](θ)) dθ

Simplifying the denominator, we get:

∫[tex](1/(7[/tex][tex]\sqrt{(16 - 16sin^2}[/tex](θ)))) [tex](4cos[/tex](θ)) dθ = ∫[tex](1/(28cos[/tex](θ))) dθ

Now we can use the trigonometric identity cos^2(θ) = 1 - sin^2(θ) to rewrite the denominator:

∫[tex](1/(28cos[/tex](θ))) dθ = ∫[tex](1/(28[/tex]√[tex](1 - sin^2[/tex](θ)))) dθ

dx = 4 cos(θ) dθ

∫[tex](1/(28√(1 - sin^2[/tex](θ)))) dθ = ∫[tex](1/(28√(1 - (x/4)^2))) (1/4) dx[/tex]

This is the form of the integral that we can evaluate using the substitution [tex]u = x/4[/tex] and the formula for the integral of [tex]1/[/tex] √[tex](1 - u^2)[/tex], which is arcsin(u) + C.

Substituting [tex]u = x/4[/tex] and simplifying, we get:

[tex](1/112)∫(1/√(1 - (x/4)^2)) dx = (1/112) arcsin(x/4) + C[/tex]

Therefore, the solution is:

[tex]∫(1/(7√(16 - x^2))) dx = (1/112) arcsin(x/4) + C[/tex]

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Describe the specific characteristics of the distributions [3 points each]
a. What are the characteristics of the discrete probability distribution function?
b. What are three characteristics of a binomial experiment?
c. What can you tell about outcomes of continious probability distribution? What is the graph and the area under the graph for this distribution? What is P(x = a)?

Answers

P(x = a), is always zero because there are an infinite number of possible values within the given range

a. The specific characteristics of the discrete probability distribution function are:
1. It represents the probabilities of a finite number of distinct outcomes, where each outcome has a non-negative probability.
2. The sum of the probabilities of all possible outcomes is equal to 1.
3. The probability of a particular outcome, P(x = a), can be directly computed from the function.

b. Three characteristics of a binomial experiment are:
1. There are a fixed number of trials (n) conducted independently.
2. Each trial has only two possible outcomes, often referred to as "success" and "failure".
3. The probability of success (p) is constant for all trials.

c. For continuous probability distribution:
1. Outcomes: The outcomes are represented by continuous random variables that can take an infinite number of values within a specified range.
2. Graph and area under the graph: The graph of the continuous probability distribution is a curve, and the area under the curve represents the probabilities associated with the range of values. The total area under the curve is equal to 1.
3. P(x = a): For a continuous distribution, the probability of the random variable equaling a specific value, P(x = a), is always zero because there are an infinite number of possible values within the given range.

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From question 1, recall the following definition. Definition. An integer n is divisible by 5 if there exists an integer k such that n= 5k. (a) Show that the integer n = 45 is divisible by 5 by verifying the definition: above. (b) Show that the integer n= -110 is divisible by 5 by verifying the definition above. (c) Show that the integer n = 0 is divisible by 5 by verifying the definition above. = (d) Use a proof by contradiction to prove the following theorem: Theorem 1. The integer n = 33 is not divisible by 5.

Answers

An integer is a whole number that can be either positive, negative, or zero. In mathematics, a theorem is a statement that has been proven to be true using logic and reasoning. Theorem 1 states that the integer n = 33 is not divisible by 5.

To show that an integer n is divisible by 5, we need to find an integer k such that n = 5k. Let's apply this definition to each of the given integers.

(a) To show that n = 45 is divisible by 5, we need to find an integer k such that n = 5k. We can see that k = 9 satisfies this condition since 5k = 5(9) = 45. Therefore, 45 is divisible by 5.

(b) To show that n = -110 is divisible by 5, we need to find an integer k such that n = 5k. We can see that k = -22 satisfies this condition since 5k = 5(-22) = -110. Therefore, -110 is divisible by 5.

(c) To show that n = 0 is divisible by 5, we need to find an integer k such that n = 5k. We can see that k = 0 satisfies this condition since 5k = 5(0) = 0. Therefore, 0 is divisible by 5.

(d) To prove Theorem 1, we will use proof by contradiction. Let's assume that n = 33 is divisible by 5, which means there exists an integer k such that n = 5k. Then, we have 33 = 5k, which implies that k = 6.6. However, k must be an integer according to the definition of divisibility. Therefore, we have reached a contradiction, and our assumption that n = 33 is divisible by 5 must be false. Hence, Theorem 1 is proven.

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suppose you like to keep a jar of change on your desk. currently, the jar contains the following: 8 pennies 13 dimes 12 nickels 22 quarters what is the probability that you reach into the jar and randomly grab a nickel and then, without replacement, a dime? express your answer as a fraction or a decimal number rounded to four decimal places.

Answers

Step-by-step explanation:

12 nickels out of (8+13+12+22 = 55) coins    12/55 chance of nickel

   now there are only 54 coins   and 13 are dimes  :   13/54 chance of dime

12/55 * 13/54 = 26/495 = .0525 chance

Local residents were surveyed to determine if they used private transportation or public transportation to get to work. The two-way table shows the results.
Determine whether each statement is true or false. Type "true" or "false" in the response boxes.

The majority of women surveyed use private transportation to get to work.

The majority of the people surveyed who use private transportation to get to work are men.

The majority of the people surveyed who use public transportation to get to work are women.

The majority of the men surveyed use public transportation to get to work.

Answers

Transportation refers to the different ways that people and/or products are moved from one location to another. The majority of the men surveyed use public transportation to get to work.

Transportation refers to the different ways that people and/or products are moved from one location to another. The ability and necessity to move increasing numbers of people or things across great distances at fast speeds in safety and comfort has grown, and this is a sign of civilization in general and of technical advancement in particular.

The majority of women surveyed use private transportation to get to work. True

The majority of the people surveyed who use private transportation to get to work are men. False

The majority of the people surveyed who use public transportation to get to work are women. True

The majority of the men surveyed use public transportation to get to work. False

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Answer:

The majority of women surveyed use private transportation to get to work.

true

The majority of the people surveyed who use private transportation to get to work are men.

false

The majority of the people surveyed who use public transportation to get to work are women.

true

The majority of the men surveyed use public transportation to get to work.

false

Step-by-step explanation:

Got this on study island

PLEASE HELP ITS URGENT I INCLUDED THE GRAPHS AND WROTE THE PROBLEM DOWN!
Which graph represents the function f(x)=|x−1|−3 ?

Answers

The graph of the function f(x)=|x−1|−3 is the graph (b)

How to determine the graph of the function

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

f(x)=|x−1|−3

Express properly

So, we have

f(x) = |x − 1| − 3

The above expression is a absolute value function

This means that

The graph opens upward vertex = (1, -3)

Using the above as a guide, we have the following:

The graph of the function is the graph b

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How many integers satisfy each inquality -105>x>102

Answers

A total of 209 integers from -106 to 102 are there to satisfy the inequality -105>x>102.

The inequality can be written as,

x > 102 or x < -105

If x > 102, the smallest integer that satisfies the inequality is 103, and all larger integers satisfy the inequality. If x < -105, the largest integer that satisfies the inequality is -106, and all smaller integers satisfy the inequality.

As a result, the integers that meet the inequality are as follows: -106, -105, -104,..., 101, 102. We can count the amount of integers in this list by subtracting the ends and adding one.

(102) - (-106) + 1 = 209

Therefore, there are 209 integers that satisfy the inequality.

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