Find the length of QR

Find The Length Of QR

Answers

Answer 1

Answer:

QR = 15

Step-by-step explanation:

The product of the length of the secant segment and its external part equals the square of the length of the tangent segment.

(QR+5) *5 = 10^2

(QR+5) *5 = 100

Divide each side by 5.

(QR+5) *5/5 = 100/5

(QR+5)  = 20

Subtract 5 from each side.

QR = 20-5

QR = 15


Related Questions

40 students made the student council. 5/8 of the students were girls. How many boys made student council?

Answers

5/8 = 25/40 , therefore , 25 out of 40 who were girls made the student council . So that means that the rest out of 40 are boys . The answer will be 15/40 boys made student council . Thus , 15 boys is the final answer .

Select the correct answer.
A school conducts 27 tests in 36 weeks. Assume the school conducts tests at a constant rate. What is the slope of the line that represents the
number of tests on the y-axis and the time in weeks on the x-axis?
A 3/4
B. 4/3
C. 3
D. 4

Answers

Answer:

a

Step-by-step explanation:

divide the number of tests by the number of weeks

what is the probability that a randomly chosen subject comples more than the expected number of puzzles in the five minute

Answers

The probability that a randomly chosen subject comples more than the expected number of puzzles in the five minute is equals to the 0.40. So, option (b) is right one.

We have a Random variables X denotes the number of puzzles complete by random choosen subject. The above table contains probability distribution of random variable X. The expected number of puzzles in the 5-minutes period while listening to smoothing music is calculated by following formula, [tex]E(x) = \sum x_i p(x_i)[/tex]

= 1(0.2) + 2(0.4) + 3(0.3) + 4(0.1)

= 0.2+ 0.8+ 0.9+ 0.4

= 2.3

Now, the probability that a randomly chosen subject completes more than the expected number of puzzles in the 5-minute period while listening to soothing music, that is possible value values of X are 1,2,3,4 but for X > 2.3 only 3 and 4. So, P(X>2.3)= P(X=3) + P(X=4)

=0.30+ 0.10=0.40

Hence, required value is 0.40.

For more information about probability, refer:

https://brainly.com/question/25870256

#SPJ4

Complete question:

The above table complete the question

what is the probability that a randomly chosen subject comples more than the expected number of puzzles in the five minute period while losing music

a. 0.1

b. 0.4

c. 0.8

d. 1

e. Cannot be determined

solve triangle abc. (if an answer does not exist, enter dne. round your answers to one decimal place.) b = 66, c = 32, ∠a = 78° ∠b = ° ∠c = ° a =

Answers

In triangle ABC, ∠B is 17.7°, ∠C is 84.3° and a is 138.3 units.

To solve triangle ABC, we can use the law of sines and the fact that the sum of angles in a triangle is 180 degrees.

From the law of sines, we have:

a/sin(78) = b/sin(B) = c/sin(C)

Substituting the given values, we get:

a/sin(78) = 66/sin(B) = 32/sin(C)

Solving for sin(B), we get:

sin(B) = (asin(78))/66

Solving for sin(C), we get:

sin(C) = (asin(78))/32

Using the fact that sin(B) + sin(C) = sin(180 - B - C), we get:

(asin(78))/66 + (asin(78))/32 = sin(B+C)

Simplifying and solving for a, we get:

a = (6632sin(78))/(66sin(78) + 32sin(B+C))

To find angle B, we can use the fact that the sum of angles in a triangle is 180 degrees:

B = 180 - 78 - C

Substituting this into the law of sines equation, we get:

a/sin(78) = 66/sin(B)

Solving for sin(B), we get:

sin(B) = (66sin(78))/a

Substituting the value of a we found above, we get:

sin(B) = (66sin(78))/(66sin(78) + 32*sin(C))

Using a calculator to evaluate sin(C) and then sin(B), we get:

sin(C) = 0.478

sin(B) = 0.902

Substituting these values into the law of sines equation, we get:

a/sin(78) = 66/sin(B)

Solving for a, we get:

a = (66sin(78))/sin(B)

Using a calculator to evaluate a, we get:

a = 138.3

Therefore, the length of side a is 138.3 units, and angle B is approximately 17.7 degrees and angle C is approximately 84.3 degrees.

To learn more about triangle here:

https://brainly.com/question/2773823

#SPJ4

PLEASE HELP ME!!!! I NEED THIS ASAP!!! 35 POINTS AND BRAINLIEST!!

Answers

Answer:

Team Members In A Workplace: An Analysis of Their Importance and Contribution to Organizational Success

In today's fast-paced business environment, organizations rely heavily on the collaborative efforts of teams to achieve their goals and objectives. The success or failure of an organization often depends on the effectiveness of its team members. Therefore, team members play a crucial role in the overall success of any workplace. This essay aims to explore the importance of team members in a workplace and their contribution to organizational success.

To start with, team members are highly valuable to an organization due to their diverse skill sets and knowledge. Individuals working in a team come from different backgrounds, experiences, education levels, and expertise, which can be effectively utilized to tackle complex issues and challenges. This diversity in team members allows for the exchange of ideas, brainstorming, and the creation of innovative solutions to problems. The unique perspectives and ideas of team members can also contribute to the development of new business strategies or products, which can give the organization a competitive edge.

Moreover, team members in a workplace offer mutual support to each other, which is essential for the success of the organization. Working as a team creates a sense of belonging and camaraderie, which translates to a positive work environment. Team members can also provide feedback, encouragement, and motivation to their colleagues, which helps to establish a productive and efficient work culture. A collaborative work culture can lead to higher job satisfaction, employee retention, and overall performance of the workplace.

Another important contribution of team members in a workplace is their ability to hold each other accountable. When working in a team, members can hold each other responsible for their actions, which ensures that everyone is doing their part to achieve the team's goals. This kind of accountability not only improves individual performance but also ensures that the team is on track to achieve its objectives.

Additionally, team members in a workplace can contribute to the development of leadership skills. Working in a team can give individuals the opportunity to lead a project or work on a specific initiative, which can help develop their leadership skills. The skills developed in such scenarios include communication, decision-making, problem-solving, delegation, and conflict resolution, which are all essential skills required for effective leadership.

As a facilitator, there are several other things I would do to ensure the team runs smoothly and efficiently. Firstly, I would establish clear communication channels to ensure that team members can easily communicate with each other. This includes setting up regular team meetings and encouraging open and honest communication. Secondly, I would ensure that each team member has a clear understanding of their roles and responsibilities within the team. This means setting clear expectations and goals for each team member and providing them with the necessary resources and support to achieve these goals. Finally, I would encourage collaboration within the team by promoting a culture of trust, respect, and teamwork. This involves fostering an environment where team members feel comfortable sharing ideas, giving feedback, and working together towards a common goal.

In conclusion, team members are a critical component of any workplace, and their contributions cannot be overstated. The diverse skill sets, mutual support, accountability, and leadership skills of team members significantly impact the overall success of the organization. Therefore, it is important for organizations to create a work culture that encourages teamwork and collaboration, as it ultimately leads to higher productivity, efficiency, and satisfaction among employees.

Step-by-step explanation:

Line passing through points
(1, 3) and (2, 5)

Answers

Answer:

Step-by-step explanation:

The general formula is y=mx+b

Calculate the slope, m.

m=(y2-y1)/(x2-x1)

m=(3-5)/(1-2)

m=(-2)/(-1)=2

The slope is 2.

So plug that into the equation y=mx+b

y=2x+b.

Now let's use one of the points we were given to figure out the y intercept (b).

y=2x+b, plug in (1,3)

3=2(1)+b

3=2+b

1=b

So the intercept is 1.

Now we know the equation is y=2x+1.

You can plot the graph using a graphing calculator and check that both points are on the line. You can also substitute the points into the equation to check that it's correct.

Use the variable z and apply the definition of the nth roots, to prove that a = the nth root, over a^2. or in other words, \sqrt[n]{a^n}.thanks in advance.

Answers

Using the definition of nth roots, we can prove that a = the nth root of a^n over a^2, or \sqrt[n]{a^n}/a^2.

Let x be the nth root of a^n, so x^n = a^n. Using the definition of nth roots, we can write x as:

x = a^(1/n)

Substituting this into x^n, we get:

(a^(1/n))^n = a^n

Simplifying, we get:

a = x^n

Substituting x with a^(1/n), we get:

a = (a^(1/n))^n

Now, we can simplify the expression \sqrt[n]{a^n}/a^2 using the value we just found for x:

\sqrt[n]{a^n}/a^2 = x/a^2

= (a^(1/n))/a^2

= a^(1/n - 2)

Since x = a^(1/n), we can rewrite the expression as:

a^(1/n - 2) = (a^(1/n))/(a^2)

Therefore, we have shown that a = the nth root of a^n over a^2, or \sqrt[n]{a^n}/a^2, using the definition of nth roots.

Learn more about nth root here

https://brainly.com/question/30375320

#SPJ11

for a non-constant member function of class test, the this pointer has type: A.const Test *B.Test * constc. C.Test const *D.const Test * const

Answers

For a non-constant member function of class test, the this pointer has type D. const Test * const. The this pointer is a special pointer in C++ that points to the object whose member function is being executed.

It is a hidden parameter that is passed to all non-static member functions. The type of the this pointer depends on the const-ness of the member function and the const-ness of the object on which the member function is being called.
In this case, the member function is non-constant, which means it can modify the object on which it is being called. Therefore, the this pointer is a pointer to a constant object of type Test. This is because the object on which the member function is being called is being treated as constant inside the member function, even though it may not actually be constant.
The const keyword before Test indicates that the object pointed to by the this pointer is constant, and the const keyword after Test indicates that the this pointer itself is constant and cannot be modified. Therefore, the correct answer is D. const Test * const.
In summary, the type of the this pointer for a non-constant member function of class test is a pointer to a constant object of type Test, which is itself a constant pointer that cannot be modified.

To learn more about member function, refer:-

https://brainly.com/question/19592235

#SPJ11

2x+2yequals 5, x-2y equals 3 find the solution set by using method elimination by substitution

Answers

The solution set of the given system of equations is {(8/3, -1/6)}.

We are given the following system of linear equations:

2x + 2y = 5 ...(1)

x - 2y = 3 ...(2)

We can use the method of elimination by substitution to solve this system. First, we solve equation (2) for x in terms of y:

x = 2y + 3

Substituting this value of x in equation (1), we get:

2(2y + 3) + 2y = 5

Simplifying the above expression, we get:

6y + 6 = 5

6y = -1

y = -1/6

Substituting this value of y in equation (2), we get:

x - 2(-1/6) = 3

x + 1/3 = 3

x = 8/3

Therefore, the solution set of the given system of equations is:

{(8/3, -1/6)}

Learn more about system of equations here

https://brainly.com/question/13729904

#SPJ11

The hanger image below represents a balanced equation.



Write an equation to represent the image.

Answers

The equation representing visual models is z+1/5=3/5.

Since it is given in the question that the hanger image represents a balanced equation therefore equating LHS with RHS it can be written as follows.

LHS = 1/5 + z

RHS = 3/5+ z

Equating both the equations it can be written as

LHS = RHS

1/5+z=3/5

or z=3/5-1/5

Therefore, z=2/5

Hence, for  z=2/5 the hanger will represent a balanced equation.

#SPJ1

a) Show that the cosine rule shown below can be
rearranged to give
b) What is the size of angle in the triangle below?
Give your answer to the nearest degree

Answers

Answer:

38.9°

Step-by-step explanation:

a) a² = b² + c² - 2 bc cos A

2 bc cos A = b² + c² - a²

cos A = (b² + c² - a²) ÷ 2 bc

(shown)

b) cos theta =

[tex] \frac{23 {}^{2} + 11 {}^{2} - 16 {}^{2} }{2 \times 23 \times 11} = \frac{394}{506} = \frac{197}{253} [/tex]

Theta = cos¯¹ 197/253 = 38.8623 = 38.9° (1 dp)

If A = [-3,6) and B= (0,5)

Answers

Answer:

the answer is B=0,5

Step-by-step explanation:

True/False: When a form is created based on two or more tables, a relationship must be defined between queries.

Answers

True: When a form is created based on two or more tables, a relationship must be defined between queries.

True. When a form is created based on two or more tables, a relationship must be defined between queries in order to ensure that the form displays accurate data. Queries are used to pull data from multiple tables and present it in a single view, so it is important to define the relationships between these tables to avoid inconsistencies or errors in the displayed data. This ensures that the data from the related tables can be properly displayed and managed within the form.

When you drag and search a field from an "other" (unrelated) table, a new one-to-many relationship is created from the table in the list and the table from which you dragged the field. This relationship is established by Access, which does not enforce integrity by default.

Learn more about Tables:

brainly.com/question/10670417

#SPJ11

i need help with Which is a kind of federal payroll tax?

Answers

The FICO is a type of federal payroll tax

Given data ,

One type of federal payroll tax is the Federal Insurance Contributions Act (FICA) tax. This tax is a combination of Social Security and Medicare taxes, which are used to fund these programs. The current Social Security tax rate is 12.4%, with 6.2% paid by the employee and 6.2% paid by the employer.

The Medicare tax rate is 2.9%, with 1.45% paid by the employee and 1.45% paid by the employer. However, there is an additional 0.9% Medicare tax that is paid by employees who earn over a certain amount.

To learn more about federal payroll tax click :

https://brainly.com/question/30166726

#SPJ1

prove by induction on n ≥ 1 that if a (free) tree t has n vertices, then it has exactly n −1 edges. (use (a) and the theorem from lecture about leaves in trees.)

Answers

To prove by induction on n ≥ 1 that if a tree T has n vertices, then it has exactly n-1 edges, we will use the theorem about leaves in trees.

To prove by induction on n ≥ 1 that if a tree T has n vertices, follow the given steps :

1. Base Case: For n = 1, there is only one vertex in the tree T and no edges. Since 1-1 = 0, the statement holds true for n = 1.

2. Inductive Hypothesis: Assume that the statement is true for some n = k, i.e., if a tree T has k vertices, then it has k-1 edges.

3. Inductive Step: We need to prove that the statement is true for n = k+1, i.e., if a tree T has k+1 vertices, then it has k edges.

Consider a tree T with k+1 vertices. By the theorem about leaves in trees, we know that T has at least one leaf (a vertex with degree 1). Let v be a leaf in T, and let u be its only adjacent vertex. Remove the vertex v and the edge connecting u and v from the tree. The resulting tree T' has k vertices.

By the inductive hypothesis, T' has k-1 edges. Since we removed a leaf and its connecting edge, we can conclude that the original tree T with k+1 vertices has (k-1)+1 = k edges.

Thus, the statement holds true for n = k+1.

By using mathematical induction on n ≥ 1, we have proved that if a tree T has n vertices, then it has exactly n-1 edges.

Learn more about Induction -https://brainly.com/question/29503103

#SPJ11

Question 1-3
Given parallelogram WXYZ, where WX-8z+2, XY-6z+4, YZ-5z+11, determine the length of ZW, in inches.

Answers

The length of ZW is 45 inches.

We have,

A parallelogram is a member of quadrilateral which has a pair of opposite sides to be equal, and a pair of slant opposite sides.

In the given information, we have;

WX = YZ (a pair of opposite side of a parallelogram are equal)

2x + 15 = 4x - 21

collect like terms,

21 + 15 = 4x - 2x

36 = 2x

x = 36/2

x = 18

So that;

WX = 2x + 15

     = 2(18) + 15

WX = 36 + 15

     = 51

XY = x + 27

    = 18 + 27

    = 45

Therefore,

ZW = XY  (a pair of opposite sides are equal)

ZW = 45

The length of ZW is 45 inches.

Learn more about parallelogram at

brainly.com/question/20526916

#SPJ1

100 POINTS
Help answer these 6 questions ​

Answers

A1. The rectangular coordinates for the point (5, 5TT ) are
(5, 5т).
A2. The question is incomplete and does not provide any information about the point (SI).
A3. To find the rectangular coordinates for the point (3,
-120°), we need to use the formula x = r cos(e) and y = r sin(e), where r is the distance from the origin to the point and O is the angle the line connecting the point with the origin makes with the positive x-axis.

A4. To find the rectangular coordinates for the point (2, π/4), we need to use the formula x = r cos(θ) and y = r sin(θ), where r is the distance from the origin to the point and θ is the angle the line connecting the point with the origin makes with the positive x-axis.

We have r = 2 and θ = π/4.

So, x = r cos(θ) = 2 cos(π/4) = √2 and y = r sin(θ) = 2 sin(π/4) = √2.

Therefore, the rectangular coordinates for the point (2, π/4) are (√2, √2).

A5. To find the rectangular coordinates for the point (1/4, π/2), we need to use the formula x = r cos(θ) and y = r sin(θ), where r is the distance from the origin to the point and θ is the angle the line connecting the point with the origin makes with the positive x-axis.

We have r = 1/4 and θ = π/2.

So, x = r cos(θ) = (1/4) cos(π/2) = 0 and y = r sin(θ) = (1/4) sin(π/2) = 1/4.

Therefore, the rectangular coordinates for the point (1/4, π/2) are (0, 1/4).

A6. To find the rectangular coordinates of (5,240), we need to use the formula x = r cos(θ) and y = r sin(θ), where r is the distance from the origin to the point and θ is the angle the line connecting the point with the origin makes with the positive x-axis.

We have r = 5 and θ = 240°. Converting 240° to radians, we get θ = 4π/3.

So, x = r cos(θ) = 5 cos(4π/3) = -2.5 and y = r sin(θ) = 5 sin(4π/3) = -4.330.

Therefore, the rectangular coordinates for the point (5,240) are (-2.5, -4.330).

Answer:

A1. The rectangular coordinates for the point (5, 5TT ) are

(5, 5т).

A2. The question is incomplete and does not provide any information about the point (SI).

A3. To find the rectangular coordinates for the point (3,

-120°), we need to use the formula x = r cos(e) and y = r sin(e), where r is the distance from the origin to the point and O is the angle the line connecting the point with the origin makes with the positive x-axis.

A4. To find the rectangular coordinates for the point (2, π/4), we need to use the formula x = r cos(θ) and y = r sin(θ), where r is the distance from the origin to the point and θ is the angle the line connecting the point with the origin makes with the positive x-axis.

We have r = 2 and θ = π/4.

So, x = r cos(θ) = 2 cos(π/4) = √2 and y = r sin(θ) = 2 sin(π/4) = √2.

Therefore, the rectangular coordinates for the point (2, π/4) are (√2, √2).

A5. To find the rectangular coordinates for the point (1/4, π/2), we need to use the formula x = r cos(θ) and y = r sin(θ), where r is the distance from the origin to the point and θ is the angle the line connecting the point with the origin makes with the positive x-axis.

We have r = 1/4 and θ = π/2.

So, x = r cos(θ) = (1/4) cos(π/2) = 0 and y = r sin(θ) = (1/4) sin(π/2) = 1/4.

Therefore, the rectangular coordinates for the point (1/4, π/2) are (0, 1/4).

A6. To find the rectangular coordinates of (5,240), we need to use the formula x = r cos(θ) and y = r sin(θ), where r is the distance from the origin to the point and θ is the angle the line connecting the point with the origin makes with the positive x-axis.

We have r = 5 and θ = 240°. Converting 240° to radians, we get θ = 4π/3.

So, x = r cos(θ) = 5 cos(4π/3) = -2.5 and y = r sin(θ) = 5 sin(4π/3) = -4.330.

Therefore, the rectangular coordinates for the point (5,240) are (-2.5, -4.330).

Read more on Brainly.com - https://brainly.com/question/31948396#readmore

Step-by-step explanation:

An observation that has a strong effect on the regression results is called a(n) O a. influential observation b. residual O c. sum of squares error d. None of these answers are correct.

Answers

The correct answer to the question is option a) influential observation. An influential observation is an observation that has a significant impact on the regression results, meaning that if it is removed, the regression equation and the coefficients can change significantly.

In other words, it can have a strong effect on the fit of the regression model.
For instance, an influential observation could be an outlier, a point that deviates significantly from the general pattern of the data. This point can affect the slope and intercept of the regression line, and therefore the predictions and inference based on the model. Another example of an influential observation could be a point that has a high leverage, meaning that it has a high leverage on the estimated coefficients due to its position in the predictor space.
Therefore, it is essential to detect and address influential observations when building regression models to ensure that the results are reliable and valid. Techniques such as Cook's distance and leverage plots can be used to identify influential observations and various methods can be employed to deal with them, such as removing them, transforming the data, or using robust regression techniques.

To learn more about regression, refer:-

https://brainly.com/question/31735997

#SPJ11

there are 28 employees in a particular division of a company. their salaries have a mean of $70,000, a median of $55,000, and a standard deviation of $20,000. the largest number on the list is $100,000. by accident, this number is changed to $1,000,000. what is the value of the standard deviation after the change? write your answer in units of $1000

Answers

The salaries have a mean of $70,000 and a standard deviation of $20,000, and the largest salary is originally $100,000. However, this value is mistakenly changed to $1,000,000. We are asked to determine the value of the standard deviation after this change.

To solve this problem, we can use the formula for standard deviation, which is the square root of the variance. We can find the variance of the original data set using the formula: variance = sum of (x - mean)^2 / n. Using the given values, we get a variance of $400,000,000. Next, we can find the new mean of the data set after the change by adding $900,000 to the original sum and dividing by 28. This gives us a new mean of $134,286. The new variance can be calculated using the same formula, but with the new mean and the new largest value of $1,000,000. This gives us a variance of $657,143,556, which, when taking the square root, gives us a standard deviation of approximately $25,640.

Therefore, the value of the standard deviation after the change is approximately $25,640.

To learn more about standard deviation, click here:

brainly.com/question/13498201

#SPJ11

Consider the following set of ordered pairs. Assuming that the regression equation is y^​=4.267+0.300x and that the SSE =21.0333, test to determine if the slope is not equal to zero using α=0.10.

Answers

Based on the given regression equation and ∑ of squared errors, we performed a hypothesis test to determine if the slope is significantly different from zero at a 0.10 level of significance.

To perform the hypothesis test, we first need to calculate the standard error of the slope (SEb). This can be done using the following formula:

SEb = √(SSE / (n - 2)) / √(SSx)

where SSE is the ∑ of squared errors, n is the sample size, and SSx is the ∑ of squared deviations of x from its mean. In this case, we are given that SSE = 21.0333 and the sample size is not specified. We can calculate SSx using the formula:

SSx = ∑((x - x₁)²)

where x₁ is the mean of x. If we as∑e that the sample size is 10, then we can calculate SSx as:

SSx = ∑((x - x₁)²) = 10(11.5²) - (100²) / 10 = 115

Plugging in the values, we get:

SEb = √(21.0333 / 8) / √(115) = 0.268

Next, we calculate the t-statistic using the formula:

t = (b - 0) / SEb

where b is the estimated slope from the regression equation. In this case, b = 0.3. Plugging in the values, we get:

t = (0.3 - 0) / 0.268 = 1.119

Finally, we compare the t-statistic to the critical value from the t-distribution with n - 2 degrees of freedom (where n is the sample size).

For an alpha level of 0.10 and 8 degrees of freedom, the critical value is 1.860. Since our t-statistic of 1.119 is less than the critical value of 1.860, we fail to reject the null hypothesis.

This means that we do not have sufficient evidence to conclude that the slope is significantly different from zero at the 0.10 level of significance.

To know more about regression here

https://brainly.com/question/14184702

#SPJ4

Cicely and James are working on if-then statements in their geometry class. Their statements for "Right triangles have one right angle" are shown below.
Cicely
If a triangle is a right triangle, then it has one right angle.
James
If a triangle has one right angle, then it is a right triangle.
Which of the two has written a correct if-then statement

Answers

James has written a correct if-then statement.

In an if-then statement the part following the "if" should be a hypothesis, and the part following the "then" should be a conclusion statement.

Considering the two of the given statements:

Cicely's statement: "If a triangle is a right triangle, then it has one right angle." is correct since the hypothesis and conclusion are both correct.

James's statement: "If a triangle has one right angle, then it is a right triangle." is also correct since the hypothesis and conclusion are both correct.

Now, comparing both the statements "If a triangle has one right angle" is a perfect hypothesis since it gives a condition which when followed gives the conclusion.

Hence, James has written a correct if-then statement.

Learn more about Conditional Statements:

https://brainly.com/question/18152035


#SPJ1

use mathematical induction to prove i^3 = n^2(n 1)^2 - 4

Answers

The proof by mathematical induction shows that the statement 1^3 + 2^3 + 3^3 + n^3 = (n^2(n+1)^2)/4 holds for all positive integers n. The base case n = 1 is true, and assuming the statement is true for n = k, we can prove it is true for n = k+1 by substituting k+1 for n and simplifying the expression.

To prove the statement 1^3 + 2^3 + 3^3 + ... + n^3 = (n^2(n+1)^2)/4 for all natural numbers n using mathematical induction, we proceed as follows:

Base case: Let n = 1. Then 1^3 = (1^2(1+1)^2)/4 = 1, which is true.

Inductive step: Assume the statement is true for some arbitrary value k, i.e., 1^3 + 2^3 + 3^3 + ... + k^3 = (k^2(k+1)^2)/4.

We need to show that the statement is also true for n = k+1, i.e., 1^3 + 2^3 + 3^3 + ... + (k+1)^3 = ((k+1)^2(k+2)^2)/4.

Starting with the left-hand side of the equation, we have:

1^3 + 2^3 + 3^3 + ... + (k+1)^3

= (1^3 + 2^3 + 3^3 + ... + k^3) + (k+1)^3 // regrouping the last term

= (k^2(k+1)^2)/4 + (k+1)^3 // using the induction hypothesis

= (k+1)^2(k^2+4k+4)/4 // factoring out (k+1)^2

= ((k+1)^2(k+2)^2)/4 // simplifying the expression

Therefore, the statement is true for n = k+1, and by mathematical induction, the statement is true for all natural numbers n.

Hence, we have proven that 1^3 + 2^3 + 3^3 + ... + n^3 = (n^2(n+1)^2)/4 for all natural numbers n.

Your question is incomplete.

Complete question may be:

Use mathematical induction to prove that statement 1^3 + 2^3 + 3^3 + n^3 = (n^2(n+1)^2)/4 , ∀n∈N

Learn more about mathematical induction:

https://brainly.com/question/29503103

#SPJ11

ucr student id numbers consist of 9 digits with the first two digits being fixed as 86. how many unique student id numbers are possible?

Answers

The requried, there are 10 million unique student ID numbers possible.

Since the first two digits are fixed as 86, we have 86XXXXXXX. The remaining 7 digits can be any number from 0 to 9, so there are 10 options for each digit.

Therefore, the total number of unique student ID numbers possible is:

10 * 10 * 10 * 10 * 10 * 10 * 10  = 10⁷ = 10,000,000

So there are 10 million unique student ID numbers possible.

Learn more about combination here;

https://brainly.com/question/31596715

#SPJ1

Ann made 147 for 7 hours of work. At the same rate, how much would she make for 5 hours of work?

Answers

Answer: Ann would make $105 for 5 hours of work at the same rate.

Step-by-step explanation:

To find out how much Ann would make for 5 hours of work, we first need to determine her hourly wage. Divide her earnings by the number of hours she worked:

147 ÷ 7 = 21

Ann earns $21 per hour. Now, multiply her hourly wage by 5 hours to find out how much she would make for 5 hours of work:

21 × 5 = 105

Ann would make $105 for 5 hours of work at the same rate.

AYPM~AWBE
What is BE?
Enter your answer, as a decimal, in the box.

Answers

The value of BE is 42in

What are similar triangles?

Similar triangles are triangles that have the same shape, but their sizes may vary. For two triangles to be similar the corresponding angles are congruent.

Also the ratio of the corresponding sides are equal.

This means that;

15/21 = 30/BE

represent BE by x

15/21 = 30/x

15x = 21×30

15x = 630

divide both sides by 15

x = 630/15

x = 42

Therefore the value of BE is 42 in

learn more about similar triangles from

https://brainly.com/question/14285697

#SPJ1

Solve for x????helpp

Answers

The value of x is 128 degrees, given that two lines intersect at 140 degrees and (x+12) degrees and one of the angles formed by the intersection is (x+12) degrees.

If two lines intersect, the angle formed at the point of intersection is 180 degrees. We are given that the intersection of the two lines creates an angle of 140 degrees. Let's call the other angle formed by the two lines "y". Then we have:

140 degrees + y = 180 degrees

y = 180 degrees - 140 degrees

y = 40 degrees

Now, we are also given that one of the angles formed by the two lines is (x+12) degrees. We can set up an equation using this information:

x + 12 + y = 180 degrees

x + 12 + 40 degrees = 180 degrees

x + 52 degrees = 180 degrees

x = 180 degrees - 52 degrees

x = 128 degrees

Therefore, the value of x is 128 degrees.

To learn more about point of intersection link is here

brainly.com/question/14217061

#SPJ1

show that if m and n are integers such that m > 2 and n > 2 then the ramsey numbers

Answers

Given that m and n are integers with m > 2 and n > 2, Ramsey's theorem ensures that the Ramsey number R(m, n) exists.

Given that m and n are integers with m > 2 and n > 2, we want to show that the Ramsey number R(m, n) exists.

Ramsey numbers are part of Ramsey theory, which is a branch of combinatorial mathematics. The Ramsey number R(m, n) represents the smallest integer N such that any complete graph of order N (meaning it has N vertices) will have either a clique of size m (a complete subgraph with m vertices, all connected) or an independent set of size n (a subgraph with n vertices, none connected).

Ramsey's theorem guarantees that for any two integers m and n greater than 2, there exists a Ramsey number R(m, n). This is because as the graph grows, the probability of finding a clique of size m or an independent set of size n increases. Eventually, a graph of a large enough size (represented by N) will always contain one of these subgraphs.

In summary, given that m and n are integers with m > 2 and n > 2, Ramsey's theorem ensures that the Ramsey number R(m, n) exists.

To learn more about integers visit : https://brainly.com/question/929808

#SPJ11

Find the y-intercept of the line y=7x– 12/7

Answers

Answer:

the y-intercept of the line y = 7x - 12/7 is -12/7.

Step-by-step explanation:

The equation y = 7x - 12/7 is in slope-intercept form, y = mx + b, where m is the slope and b is the y-intercept.

In this equation, the slope is 7, which means that for every increase of 1 in the x-value, the y-value increases by 7.

To find the y-intercept, we can set x = 0, since the y-intercept is the point where the line crosses the y-axis.

When x = 0, we have:

y = 7(0) - 12/7 = -12/7

Therefore, the y-intercept of the line y = 7x - 12/7 is -12/7.

Answer:

(0,-12/7)

Step-by-step explanation:

To find the y-intercept, substitute in 0 for x and solve for y.

have a great day and thx for your inquiry :)

Prove for every positive integer n that 2! · 4! · 6! · · · (2n)! ≥ ((n + 1)!)^n.(proof by induction)

Answers

The inequality holds for all positive integers k.Hence, by induction, we have proved that 2! · 4! · 6! · · · (2n)! ≥ ((n + 1)!)^n for every positive integer n.

We will prove the given inequality by induction.

Base case: For n = 1, we have 2! = 2 and (n+1)! = 2^2 = 4.

Therefore, (2!) ≥ ((1+1)!)^1 is true.Induction hypothesis:

Assume that the inequality holds for some positive integer k, i.e., 2! · 4! · 6! · · · (2k)! ≥ ((k + 1)!)^k.

Inductive step: We need to show that the inequality also holds for k + 1.We have: 2! · 4! · 6! · · · (2k)! · (2(k+1))! ≥ ((k + 1)!)^k · (2(k+1))!

Dividing both sides by (2k+2)(2k+1), we get: 2! · 4! · 6! · · · (2k)! · (2k+2)! / [(2k+2)(2k+1)] ≥ ((k + 1)!)^k · [(2(k+1)) / (2k+2)]

Simplifying the right-hand side, we get: ((k + 1)!)^k · [(2(k+1)) / (2k+2)] = [(k + 1)! / k!]^k · [(k+2) / (k+1)] = (k+2)^k

Substituting this expression and simplifying, we get: 2! · 4! · 6! · · · (2k)! · (2k+2)! / [(2k+2)(2k+1)] ≥ (k+2)^k

Simplifying the left-hand side, we get: 2! · 4! · 6! · · · (2k)! · (2k+2)! = [(2k+2)! / (2k+1)!] · [(2k)! / (2k-1)!] · [(2k-2)! / (2k-3)!] · · · [4! / 3!] · [2! / 1!]

= (2k+2)(2k+1)(2k)(2k-1) · · · 4 · 2

Therefore, we can write: (2k+2)(2k+1)(2k)(2k-1) · · · 4 · 2 / [(2k+2)(2k+1)] ≥ (k+2)^k

Simplifying further, we get: (2k)(2k-1) · · · 4 · 2 ≥ (k+2)^k

Using the induction hypothesis, we know that 2! · 4! · 6! · · · (2k)! ≥ ((k + 1)!)^k.

Therefore, we can write: 2! · 4! · 6! · · · (2k)! ≥ (k+1)^k

Multiplying both sides by (k+2)^k, we get:2! · 4! · 6! · · · (2k)! · (k+2)^k ≥ (k+1)^k · (k+2)^k

Using the fact that (a+b)^n ≥ a^n + b^n for positive integers a, b, and n, we get:[(k+1) + 1]^k ≥ (k+1)^k + (k+2)^k

Subtracting (k+1)^k from both sides, we get:

1 ≥ [(k+2) / (k+1)]^k

Since k is a positive integer, we know that (k+2)/(k+1) > 1, and therefore [(k+2)/(k+1)]^k > 1.

Therefore, the inequality holds for all positive integers k.Hence, by induction, we have proved that 2! · 4! · 6! · · · (2n)! ≥ ((n + 1)!)^n for every positive integer n.

Learn more about induction hypothesis here, https://brainly.com/question/24672369

#SPJ11

Halp me this question

Answers

The answer to that question is 829,064 because standard form means in numbers.
Other Questions
How has the definition of citizen changed over time? tap or click the ____ up or down arrows to adjust a delay time. Johnny Rockabilly has just finished recording his latest CD. The company can produce the CD with no fixed cost and a variable cost of $18 per CD. His record company's marketing department determines that the demand for the CD is as follows:Complete the following table by computing total revenue for each quantity listed and marginal revenue for each 5,000 increase in the quantity sold. Price Number of CDs Total Revenue Marginal Revenue30 10,000300,000 12028 15,000420,000 10026 20,000520,000 802425,000600,000 6022 30,000660,000 402035,000700,000Profit is maximized at a quantity of (10,000 15,000 20,000 25,000 30,000 35,000) CDs and a price of ( 20 22 24 26 28 30). This results in a profit of$____________. If you were Johnny's agent, you would advise Johnny to demand a recording fee of (300,000 520,000 160,000 0) from the record company cost pressures on health care providers are forcing employers to reduce personnel costs by hiring a reader who examines psychologists' assumptions and uncovers their hidden values is engaging in in 1944, the japanese lost their capacity to continue a serious naval war at the battle of The key person in the internal control system of a small business is the independent auditor. T/F. What violence incident occurred as a result of a senators speech opposing slavery Which statements are true when the nurse is measuring blood pressure (BP)? Select all that apply. (3) The client should sit quietly while BP is being measured. The client's BP should be measured 1 hour before consuming alcohol. Using a BP cuff that is too small will give a higher BP measurement. Using a.BP cuff that is too large will give a higher BP measurement. The client's arm should be positioned at the level of the heart. your cameras zoom lens has an adjustable focal length ranging from 75 to 150 mm. Statement: MANY BUSINESSES FIND IT DIFFICULT TO ENTER MARKETS THAT ARE PERCEIVED TO BE OLIGOPOLY OR MONOPOLY MARKETS IN SOUTH AFRICA. Imperfect makets HOW DOES BARRIERS TO ENTRY IMPACT ON SMALL BUSINESSES IN SOUTH AFRICA? Found that individuals who feel helpless and oppressed often perceive control as external, which, in turn, deepens their feelings of resignation.Dogs strapped in a harness and given repeated shocks, with no opportunity to avoid them, learned a sense of helplessness. a raga can be performed on any melody instrument that is capable of producing slides between pitches, but is most commonly played on a: how does an inclusive physical activity philosophy differ from previous beliefs about physical activity and ability? Eutrophication of a waterway can be initiated when which of the following enters a lake or stream? A. dissolved oxygen B. arsenic C. fertilizers D. pesticides model trimming, model pouring, and making bleaching trays are all procedures that take place in the: in panoramic imaging, _____ rotate(s) around the patient. Canals the concrete canal in land town is shaped like a ""v"" at the bottom. find the mass percent of water in the complex iron salt using the data from part a. In Windows, a Network Interface Card can have more than one IP address assigned to it. a. True b. False.