The average cost to produce a booklet at a printing company is given by the equation C(X)= 2x/x-1 where x is the number of booklets produced. Graph this relationship and describe what the expected cost of producing a booklet approaches as many booklets are printed.

Answers

Answer 1

Answer:

C(x) = 2

Step-by-step explanation:

The graph of the average cost is shown in the attached image.

Note that, as is to be expected, when the number of booklets produced x increases, then the average cost per booklet decreases.

To calculate the expected cost of producing a booklet when x is very large, look at the graph.

Note that when x = 2 then the average cost is equal to 4, then when x = 5 the average cost is 2.5.

In this way, the bigger x is made, the more the cost approaches 2.

Therefore it can be said that

[tex]\lim_{x \to \infty}C(x)= 2[/tex]

Finally, the expected average cost when the number of booklet  produced is very large is C (x) = 2

The Average Cost To Produce A Booklet At A Printing Company Is Given By The Equation C(X)= 2x/x-1 Where

Related Questions

find the equation of the line passing through the point (3,1) and (7,-7)

Answers

Y=-2/5x -1 is the answer I believe, if anything check Photomath, that should be the right slope double check the y-intercept by plugging it in with your points provided to u

Answer:y = -2x + 7

Step-by-step explanation:

The equation of a straight line when two points are given is y - y1 = m(x - x1) but m is gradient which is y2 - y1 / x2 - x1

Substitute the points (3 ,1 ) and (7 , -7)

To the gradient equation and solve for the gradient which is m = -2 .Now with the gradient and the first point (3 , 1) solve for the equation

:• y - 1 = -2(x -3 )

y - 1 = -2x +6

. y = -2x + 7


The data give the average number of days in May that are clear and cloudy in
two cities.

On a day in May, what is the probability that it is clear, given that you are in
San Antonio? Explain how you found the answer and round your answer to
two decimal places.
O
A. 0.57, because 17 of the 30 days were clear
O
B. 0.26, because 6 of the 23 days were clear
O
C. 0.10, because 6 of the 60 days were clear
O
D. 0.20, because 6 of the 30 days were clear​

Answers

Final answer:

The probability that it will be a clear day in San Antonio in May is 0.57 or 57%, calculated by dividing the number of clear days (17) by the total number of days in May (30).

Explanation:

In order to determine the probability of a clear day in San Antonio in May, we need to use the given data. From option OA, it is stated that there are 17 clear days out of 30. Probability is calculated by dividing the number of favorable outcomes (clear days) by the total number of outcomes (total days in May).

So, if we divide 17 (the number of clear days) by 30 (the total number of days in May), we get the probability as 0.57 after rounding to two decimal places which matches option OA.Therefore, the probability that it will be clear in San Antonio in May is 0.57 or 57%.

Learn more about Probability here:

https://brainly.com/question/32117953

#SPJ12

Because 6 of the 30 days were Clear, The probability is 0.2

How to determine the probability

The probability of A given B is defined as ;

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

Hence, Probability of being clear given you're in San Antonio ;

P(Clear n SA) / P(SA)

Now we have ;

P(Clear n SA) = 6 / 30 = 0.2

Hence, the correct option is D.

Learn more on probability : https://brainly.com/question/24756209

#SPJ3

The local parts shop buys a machine that costs $500,000. Its value depreciates exponentially each year by 10%.

What is the machine’s value after 5 years? Round your answer to the nearest integer.

Answers

Answer:

295245

you can round it yourself

Step-by-step explanation:

solve
4-p/p-1=2/p-1

Answers

Answer:

Final answer is p=2.

Step-by-step explanation:

Given equation is [tex]\frac{4-p}{p-1}=\frac{2}{p-1}[/tex]

Cross multiply

[tex]\left(4-p\right)\left(p-1\right)=2\left(p-1\right)[/tex]

[tex]4p-4-p^2+p=2p-2[/tex]

[tex]4p-4-p^2+p=2p-2[/tex]

[tex]0=p^2-4p+4-p+2p-2[/tex]

[tex]0=p^2-3p+2[/tex]

[tex]0=p^2-1p-2p+2[/tex]

[tex]0=(p-1)(p-2)[/tex]

[tex]0=(p-1)[/tex] or [tex]0=(p-2)[/tex]

[tex]1=p[/tex] or [tex]2=p[/tex]

But p=1 will make denominator 0 and make the problem not defined.

Hence final answer is p=2

What are the x-intercepts of the graph of the equation above?

Answers

Answer:

B. (-3, 0) and (-6,0)

Step-by-step explanation:

x intercept when y = 0

so x^2 + 9x + 18 = 0

Factor

(x + 6)(x + 3) = 0

x+6 = 0; x = -6

x+3 = 0; x = -3

Answer

B. (-3, 0) and (-6,0)

Answer: Option B.

Step-by-step explanation:

The graph of the quadratic equation is a parabola.

The parabola intercepts the x-axis when [tex]y=0[/tex].

Then, you need to substitute [tex]y=0[/tex] into the equation:

[tex]y=x^2+9x+18\\0=x^2+9x+18[/tex]

Factor the quadratic equation: find two number that when you add them you get 9 and when you multiply them you get 18. In this case these numbers are 6 and 3. Then:

 [tex]0=(x+6)(x+3)\\\\x_1=-6\\x_2=-3[/tex]

Therefore, the x-intercepts are:

(-3,0) and (-6,0)

A man walks due east for 4km, he then changes direction and walks on a bearing on a bearing of 197degrees until he is south west of his starting point. How far is he from the starting point? ​

Answers

Check the picture below.

Which table represents a function with a greater rate of change than y = 3x?

x f(x)
–3 –12
–1 –4
4 16



x f(x)
–2 6
–1 3
1 –3



x f(x)
1 0.25
8 2
16 4



x f(x)
–9 3
–3 1
21 –7

Answers

Answer:

x f(x)

–3 –12

–1 –4

4 16

Step-by-step explanation:

Let us find the each function by evaluating them one by one

1.

x f(x)

–3 –12  = -3 x 4

–1 –4  = -1 x 4

4 16 = 4 x 4

By observing the data we can see that

f(x) = 4x

2.

x f(x)

–2 6  = -2 x -3

–1 3  = -1 x -3

1     –3= 1 x -3

f(x) = -3x

3.

x f(x)

1 0.25  = 1/4

8 2  = 8/4

16 4 = 16/4

f(x)= x/4

4.

x f(x)

–9 3  = -9/-3

–3 1  = -3/-3

21 –7  = 21/-3

f(x) = x/-3

Hence comparing all the four function with our given function f(x)=3x , we see that f(x) =4x has a greater rate of change that f(x)=3x

Answer:

The Correct Answer is A.

Step-by-step explanation:

A wall of a building is made from blocks that are each one cubic foot the wall is 6 feet high and 6 feet wide. a window is made by removing some blocks as shown below the window is 2 feet high by 2 feet wide.what is the value of the wall after the window is made?

Answers

The required value of the wall after the window is made is 32 cubic feet.

What is volume?

Volume is defined as the mass of the object per unit density while for geometry it is calculated as profile area multiplied by the length at which that profile is extruded.

Here,
The total number of cubic feet in the wall before the window is made is,

6 feet (height) × 6 feet (width) = 36 cubic feet.

The window is 2 feet high and 2 feet wide, so its area is:

2 feet (height) × 2 feet (width) = 4 square feet.

To find the number of cubic feet removed to make the window, we simply multiply the area of the window by the depth of the wall, which is 1 foot:

4 square feet × 1 foot = 4 cubic feet.

Therefore, the total number of cubic feet in the wall after the window is made is,

36 cubic feet - 4 cubic feet = 32 cubic feet.

So the value of the wall after the window is made is 32 cubic feet.

Learn more about Volume here:
https://brainly.com/question/1578538

#SPJ5

2 times the square root of 18

Answers

Answer:

8.48 I believe that is the correct answer

Step-by-step explanation:

Answer:

8.48

Step-by-step explanation:

Finish this simile. Use your imagination to complete the description.


The horse ran like . . . . .

Answers

Answer: Usain Bolt

Step-by-step explanation:

Answer:

The horse ran like a jaguar trying to feed.

Step-by-step explanation:

8) Solve 4^(x - 2)= 8^6

A)5

B)8

C)10

D)11

Answers

For this case we have the following equation:

[tex]4 ^ {(x-2)} = 8 ^ 6[/tex]

We must create equivalent expressions in the equation, so that they have equal bases:

[tex]2 ^ {2 * (x-2)} = 2 ^ {3 * 6}[/tex]

If the bases are the same, then the two expressions are only equal if the exponents are equal:

[tex]2 (x-2) = 3 * 6\\2 (x-2) = 18\\2x-4 = 18\\2x = 18 + 4\\2x = 22\\x = \frac {22} {2}\\x = 11[/tex]

Answer:

[tex]x = 11[/tex]

Option D

Answer: OPTION D

Step-by-step explanation:

You need to remember the following:

[tex]a^x=a^y\\x=y[/tex]

 Then, you must descompose 4 and 8 into their prime factors:

[tex]4=2*2=2^2\\8=2*2*2=2^3[/tex]

Rewriting the expression:

[tex]2^{2(x-2)}=2^{3(6)}[/tex]

Now you get:

[tex]2(x-2)=3(6)[/tex]

Finally, you must solve for the variable "x".

Therefore, you get the following result:

[tex]2x-4=18\\2x=22\\x=11[/tex]

On Monday 4 bricklayers took 3 hours to lay a total of 4200 bricks.

On Tuesday there are only 2 bricklayers.

Work out how many hours it will take the 2 bricklayers to lay a total of 3150 bricks

Answers

Hello!

The answer is:

It will take 4.5 hours for two bricklayers to lay a total of 3150 bricks.

Why?

From the statement, we know that on Monday, bricklayers took 3 hours to lay a total of 4200 bricks.

So, we have that the rate of the four bricklayers is given by the following equation:

[tex]Production=Rate*Time\\\\Rate=\frac{Production}{time}[/tex]

[tex]Rate=\frac{4200bricks}{3hours}=\frac{1400bricks}{hour}[/tex]

Therefore, we have that the rate of the four bricklayers is 1400 bricks per hour, meaning that each bricklayer can lay 350 bricks per hour.

Now, to calculate how many hours it will take to the 2 bricklayers to lay a total of 3150, we need to divide the calculated rate (for bricklayers) by two, since there are only 2 bricklayers working on Tuesday.

So, calculating the time, we have:

[tex]Production=\frac{Rate}{2}*Time[/tex]

[tex]3150bricks=\frac{\frac{1400bricks}{hour}}{2}*Time[/tex]

[tex]3150bricks*2*\frac{1hour}{1400bricks}=Time[/tex]

[tex]6300bricks*\frac{1hour}{1400bricks}=Time[/tex]

[tex]Time=4.5hours[/tex]

Hence, we have that it will take 4.5 hours for two bricklayers to lay a total of 3150 bricks.

Have a nice day!

Final answer:

Given the rate of work from Monday, each bricklayer can lay 350 bricks an hour. Therefore, 2 bricklayers can lay 700 bricks an hour. It will take them approximately 4.5 hours to lay 3150 bricks.

Explanation:

First, we need to find out the rate of work done by each bricklayer. On Monday, 4 bricklayers took 3 hours to lay a total of 4200 bricks. Therefore, each bricklayer can lay 4200 bricks divided by 4 bricklayers divided by 3 hours, which equals 350 bricks per hour. So, one bricklayer can lay 350 bricks an hour.

On Tuesday, there are only 2 bricklayers, and they need to lay a total of 3150 bricks. Since each bricklayer can lay 350 bricks an hour, two bricklayers can lay 700 bricks an hour. To find out the time it will take to lay 3150 bricks, we divide 3150 bricks by the 700 bricks that two bricklayers can lay in an hour. This equals to approximately 4.5 hours.

Learn more about Work Rate here:

https://brainly.com/question/14305692

#SPJ3

Find the product
( 5/3 )( 2/3 )(21)

A)
1
20

B)
20
3

C)
3
70

D)
70
3

Answers

Answer:

D 70/3

Step-by-step explanation:

5 /3 * 2/3 * 21

10/9 * 21/1

210/9

We can divide by 3 on the top and bottom

70/3

the final product is 70/3, making the correct answer D).

The question asks to find the product of the numbers (5/3), (2/3), and 21. To solve this, we will multiply these numbers step by step.

Multiply the two fractions: (5/3) * (2/3) = 10/9.Now, multiply the result by 21: (10/9) * 21 = 210/9.Simplify the result if possible: 210/9 = 70/3, which cannot be simplified further.

So, the final product is 70/3, making the correct answer D).

The polynomial of degree 3, P(x), has a root of. multiplicity 2 at x=1 and a roof of multiplicity 1 at x= -3. the y- intercept is y= 2.1. Find a formula for P(x)​

Answers

[tex]P(x)[/tex] has degree 3, so it takes the general form

[tex]P(x)=ax^3+bx^2+cx+d[/tex]

It has a root [tex]x=1[/tex] of multiplicity 2, which means [tex](x-1)^2[/tex] divides [tex]P(x)[/tex] exactly, and it has a root of [tex]x=-3[/tex] of multiplicity 1 so that [tex]x+3[/tex] also is a factor. So

[tex]P(x)=a(x-1)^2(x+3)[/tex]

Expanding this gives

[tex]P(x)=a(x^3+x^2-5x+3)=ax^3+ax^2-5ax+3a[/tex]

[tex]\implies\begin{cases}a=b\\-5a=c\\3a=d\end{cases}[/tex]

The [tex]y[/tex]-intercept occurs for [tex]x=0[/tex], for which we have

[tex]P(0)=d=2.1[/tex]

Then

[tex]3a=d\implies a=0.7[/tex]

[tex]a=b\implies b=0.7[/tex]

[tex]-5a=c\implies c=-0.14[/tex]

So we have

[tex]\boxed{P(x)=0.7x^3+0.7x^2-0.14x+2.1}[/tex]

Answer:

4

Step-by-step explanation:

on edge.

i need help hurry
please

Answers

Answer: 1 and 3, means the first one and the third one

Step-by-step explanation:

So just do the equations and you know you will get the right answer.

Fun Fact:

To get the right answer just solve all the equations, even the one in the question. And match the one that is equivalent.

Note:

If you are reading this, please let me know if you need to know anything else.

Mark BRAINLIEST

Which of the following expressions represents the distance between -13 and -4 on a number line

Answers

Answer:

a) |-13 - (-4)|

Step-by-step explanation:

The formula of a distance between two points (numbers) A and B on the number line:

d = |B - A| = |A - B|

We have A = -13 and B = -4. Substitute:

d = |-13 - (-4)|

Scores on the GRE​ (Graduate Record​ Examination) are normally distributed with a mean of 600 and a standard deviation of 120. Use the 68 dash 95 dash 99.7 Rule to find the percentage of people taking the test who score between 240 and 960.

Answers

Answer:

99.7%

Step-by-step explanation:

The 68-95-99.7 rule refers to what percentage of data is contained within ranges a certain distance from the mean.

68% of the data lies within one standard deviation of the mean

95% lies within two standard deviations, and

99.7% lies within three standard deviations.

Our mean here is 600, and our standard deviation is 120, so those ranges would be:

480-720 for 1 standard deviation

360-840 for 2 standard deviations, and

240-960 for 3.

Our given range is 240 to 960, three standard deviations from the mean, so the 68-95-99.7 rule tells us that this range contains 99.7% of the people.

According to the empirical rule, approximately 99.7% of people taking the GRE score between 240 and 960.

The student is asking for the percentage of people taking the GRE who score between 240 and 960 using the 68-95-99.7 Rule (also known as the empirical rule). This rule applies to normally distributed data and indicates that approximately 68% of data falls within one standard deviation of the mean, 95% falls within two standard deviations, and 99.7% falls within three standard deviations.

For the GRE, with a mean score of 600 and standard deviation of 120, one standard deviation range is from 480 to 720, two standard deviations is from 360 to 840, and three standard deviations is from 240 to 960. Using this rule:

68% of the scores fall between 480 (600-120) and 720 (600+120).

95% of the scores fall between 360 (600-2*120) and 840 (600+2*120).

99.7% of the scores fall between 240 (600-3*120) and 960 (600+3*120).

Hence, according to the empirical rule, approximately 99.7% of people taking the GRE score between 240 and 960.

bobs garden measure 9 feet by 6 feet.if there are 10 flowers square foot of garden how many flowers are there?​

Answers

Answer:

540

Step-by-step explanation:

9✖️6= 54

This means that there are 54 square feet in the garden

Since there are 10 flowers in each foot then you would have to multiply

54✖️10= 540

This means that there are 540 flowers in the garden

Hope this helps! :3

Find the area of the rectangle below.
(3x+4)feet (x+3)feet



Answers

Answer:

3x^2+13x+12 square feet.

Step-by-step explanation:

Since the formula for area is lxw so we Multiply the given using the foil method: (3x+4)(x+3)

3x^2+9x+4x+12, combine like terms

3x^2+13x+12, since we no longer have other like terms then the area is 3x^2+13x+12 square feet.

Answer:

Area of rectangle = [tex]3x^2+13x+12[/tex] square feet

Step-by-step explanation:

We are given the following dimensions of a rectangle and we are to find its area:

[tex] ( 3 x + 4 ) feet [/tex]

[tex] ( x + 3 ) feet [/tex]

We know that the formula of area of a rectangle is given by: [tex]l \times w[/tex].

Substituting the given dimensions in the above formula.

Area of rectangle = [tex](3x+4) \times (x+3)[/tex] = [tex]3x^2+9x+4x+12[/tex] = [tex]3x^2+13x+12[/tex] square feet

What can be 5 questions using this two table and the answers to them?? HELP due tomorrow please!

Answers

Answer:

1.) What percent of girls don't wear makeup? [30%]

2.) What percent of the people surveyed were girls? [50%]

3.) What percent of people don't have an opinion? [23.3%]

4.) What percent of boys boys prefer girls who don't wear make up? [33.3%]

5.) What percent of boy have no opinon? [10%]

I hope this helps!!!

Which of the following best describes XYZ

Answers

Answer:

D. Inscribed angle

Step-by-step explanation:

An inscribed angle has a vertex on the circumference. For any arc, every inscribed angle is exactly half of the central angle. In other words, if the central angle is [tex]x^{\circ}[/tex] and the inscribed angles is [tex]y^{\circ}[/tex], then it is true that:

[tex]y^{\circ}=\frac{x^{\circ}}{2}[/tex]

In this problem [tex]y^{\circ}=36^{\circ}[/tex], then the central angle is [tex]x^{\circ}=2y^{\circ} \ \therefore x^{\circ}=2(36^{\circ}) \therefore x^{\circ}=72^{\circ}[/tex]

Answer:

Option D.

Step-by-step explanation:

we know that

The inscribed angle is half that of the arc it comprises.

so

[tex]m<XYZ=\frac{1}{2}(arc\ XZ)[/tex]

In this problem  

The measure of angle XYZ is an inscribed angle

Simplify completely.













Answers

Answer:

[tex]\large\boxed{\sqrt{27y^8}=3y^4\sqrt3}[/tex]

Step-by-step explanation:

[tex]\sqrt{27y^8}=\sqrt{9\cdot3\cdot y^{4\cdot2}}\\\\\text{Use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b},\ (a^n)^m=a^{nm}\ \text{and}\ \sqrt{a^2}=a\\\\=\sqrt9\cdot\sqrt3\cdot\sqrt{(y^4)^2}=3\cdot\sqrt3\cdot y^4=3y^4\sqrt3[/tex]

Allison is closing on a house on september 17. The buyer owns the property on the day of the closing. The selling price of the gone is $200,500. Allison was accepted for a 25-year fixed-rate mortgage for $185,000 at 6.25% interest. The seller has paid $2,560.43 in property taxes for the coming year. How much will Allison owe in prorated taxes and interest.

Answers

Answer:

197,500

Step-by-step explanation:

200500*25-184000/6.25-2560.43=4980499.57 Which rounds to 197,500.

Allison owes approximately $1,380.50 in prorated taxes and interest for the property she's closing on September 17.

To calculate the prorated taxes and interest that Allison owes, we need to break down the calculation into two parts: prorated property taxes and prorated interest.

1. **Prorated Property Taxes:**

  - Allison is closing on September 17, which means she will own the property for 106 days of the year (September 17 to December 31).

  - The seller has already paid $2,560.43 in property taxes for the entire year.

  - To calculate Allison's portion of the property taxes, we need to divide the seller's payment by the number of days in the year and then multiply by the number of days Allison will own the property.

Prorated Property Taxes = Seller's Property Tax Payment/

Days in Year × Days Allison Owns the Property

 [tex]\[ \text{Prorated Property Taxes} = \frac{2,560.43}{365} \times 106 \][/tex]

 [tex]\[ \text{Prorated Property Taxes} = \frac{2,560.43}{365} \times 106 = 741.12 \][/tex]

2. **Prorated Interest:**

  - Allison is taking out a 25-year fixed-rate mortgage for $185,000 at 6.25% interest.

  - To calculate the prorated interest, we need to find out how much interest Allison will owe for the remaining days of September.

 Daily Interest Rate [tex]$=\frac{\text { Annual Interest Rate }}{\text { Days in Year }}=\frac{6.25 \%}{365}$[/tex]

  Prorated Interest for September = [tex]Loan Amount $\times$ Daily Interest Rate $\times$ Number of Days in September[/tex]

  [tex]\[ \text{Prorated Interest for September} = 185,000 \times \frac{6.25\%}{365} \times 14 \][/tex]

 [tex]\[ \text{Prorated Interest for September} \approx 639.38 \][/tex]

Now, let's add up the prorated property taxes and prorated interest:

[tex]\[\text{Total Prorated Taxes and Interest} = \text{Prorated Property Taxes} + \text{Prorated Interest for September}\][/tex]

[tex]\[\text{Total Prorated Taxes and Interest} = 741.12 + 639.38\][/tex]

[tex]\[\text{Total Prorated Taxes and Interest} = 1380.50\][/tex]

So, Allison will owe approximately $1,380.50 in prorated taxes and interest.

which is greater pls help 108.505 108.5? pls help!!

Answers

Answer:

108.505 is greater.

Step-by-step explanation:

It is 5 thousandths bigger.

23. Ellen bought rose bushes for her market at
wholesale for $24. The retail price was $34. What
was the markup?
$0.29
$1.42
$1.29
$0.42
$10.00​

Answers

10.00 was the markup

Ellen's markup on the rose bushes is calculated by subtracting the wholesale price from the retail price, resulting in a markup of $10.00.

The question asks to calculate the markup of rose bushes that were bought at a wholesale price and then sold at a retail price.

To find the markup, we subtract the wholesale price from the retail price: Retail Price - Wholesale Price = Markup.

In this case, Ellen bought the rose bushes at a wholesale price of $24 and the retail price was $34.

So, the markup calculation would be:

= $34 - $24 = $10.

Therefore, the markup on the rose bushes is $10.00.

A package of blank CDs usually costs $8.50. This week it's on sale for 15% off. What's the discount?

A: $.15
B: $.85
C: $1.28
D: $1.34

Answers

Answer:

1.28 is the amount you get off

Step-by-step explanation:

Answer: C: $1.28

Step-by-step explanation: took test

math help ! will reward uwu

Answers

Answer:

5) c. 6 pi cm

6) A. 81 pi mm^2

Step-by-step explanation:

5) Circumference of a circle = pi d

d = 6 cm

so

C = 6 pi cm

Answer

c. 6 pi cm

6)

A = pi r^2

r = d/2 = 18/2 = 9

so

A = pi 9^2

A = 81 pi mm^2

Answer

A. 81 pi mm^2

Answer:

Circumference: 6πcm

Area: 81π mm^2

Step-by-step explanation:

1. C = πd

C = 3.14159 * 6

C = 18.84cm OR C = 6πcm

2. A=πr^2

A = 3.14159 * (9^2)

A = 254.46mm OR 81π mm^2

Determine the value of x.



20°
30°
45°
60°

Answers

30 is the value of x given of above quertion

Answer:

30°

Step-by-step explanation:

x + 2x + 3x = 180°

30° + 60° + 90° = 180°

x = 30°

what is the reciprocal of -1

Answers

Answer:

I believe that the reciprocal of -1

Hope this helps

Step-by-step explanation:

hello!

In order to find the reciprocal of a number, we should just flop it over, like so:-

[tex]\sf{The~reciprocal~of~a~is~\frac{1}{a}}[/tex]

Flop it over:-

[tex]\sf{-\displaystyle\frac{1}{1} }[/tex]

There's something you should notice about this number.

No matter how we flop it over, we're going to end up with -1.

Hence, the reciprocal of -1 is:-

[tex]\boxed{-1}[/tex]

note:-

Hope everything is clear; if you need any clarification/explanation, kindly let me know, and I'll comment and/or edit my answer :)

The circle given by : x^2 + y^2 - 6y - 12 = 0 can be written as:
x^2 + (y - k)^2 = 21.
What is the value of k in this equation?

Answers

Step-by-step explanation:

Given equation of circle is,

[tex] {x}^{2} + {y}^{2} - 6y - 12 = 0 \\ by \: compairing \: it \: with \: \\ {x}^{2} + {y}^{2} + 2gx + 2fy = 0 \: we \: get \\2 g = 0 \: or \: g = 0 \\ 2f= - 6 \\ or \: f= - 3 \\ c = - 12[/tex]

again the another form of circle is,

[tex] {x}^{2} + {(y - k)}^{2} = 21 \\ or \: {x}^{2} + {y}^{2} - 2ky + {k}^{2} - 21 = 0 \\ by \: compairing \:it \: with \: \\ {x}^{2} + {y}^{2} + 2gx + 2fy = 0 \: we \: get \\ g = 0 \\f = - k \\ c = {k}^{2} - 21[/tex]

now equating the values of f in both equations,

-k=-3

i.e. k=3

therefore k=3

Other Questions
Maddie wants to build a circular fence around her yard. The yard has a radius of 7 feet, what is the circumference? Use 3.14 for .A)43.96B)53.86C)99.02D)100.12 Analyzing. The ligament that holds the bones inyour forearm together and helps form the pivotjoint there has been torn. How might this affectyour ability to move your hand and arm? Whatmovements might be affected? WILL GIVE BRAINLYEST Read the following excerpt from the article "Vision, Voice and the Power of Creation: An Author Speaks Out," by T. A. Barron, and answer the question that follows:Another way to tap the power of imagination is through place. My own background as a writer is rooted in nature, having grown up reading Henry David Thoreau, Rachel Carson, and John Muir long before I ever dipped into Madeleine L'Engle, Lloyd Alexander, Ursula Le Guin, E. B. White, or J.R.R. Tolkien. My early writings were really nature journals; at nine, I wrote a complete biographyof a tree. (It was a once-majestic chestnut tree not far from my home.) So it should come as no surprise that I view place as much more than just a setting for a story. It is, in truth, another form of character, no less alive and complex, mysterious and contradictory, than the richest character in human form.What does the author imply when he writes, "Another way to tap the power of imagination is through place"? The power of imagination is only found in place. There are many ways to tap the power of imagination. There are other ways to use place. The best way to tap the power of imagination is through place. What's the greenhouse effect? A. The release of extra moisture from water vaporB. Human-caused global warmingC. The regulation of atmospheric and surface temperaturesD. The trapping of warm air in cities Please help me with these, I am not the best at these and am so confused. first person to answer all will get brainliest!!!! II. Complete the following sentences with the appropriate indirect object pronouns. (10 points; 2 points each)1.Qu vas a regalar a tu hermana por su cumpleaos?2.Mis padres mandaron un pastel a mis hermanos y a m.3.Pedro llam a m antes de llamarte a ti.4.Yo voy a invitar a Mario y a ti. 5. Por favor, camarero, triga sal a los chicos.III. Complete the following sentences with the appropriate direct object pronouns. (10 points; 2 points each)1.Me trae el caf. Me trae.2.Le recomiendo la langosta. Se recomiendo.3.Voy a pedir las patatas fritas. Voy a pedir .4.Los estudiantes quieren los nuevos uniformes. Los estudiantes quieren.5. El perro quiere tu zapato. El perro quiere.IV. Complete the following sentences with the appropriate indirect object and direct object pronouns. (20 points; 2 points each)1.El camarero me trae la ensalada. El camarero trae.2.La maestra nos da la tarea. La maestra da.3.Antonio me mand la carta. Antonio mand.4.Yo te doy el libro de matemticas. Yo doy.5.Juana le dio la pelota al perro. Juana dio.6.Yo te traigo la torta. Yo 7.Juan le pasa la pimienta a su hermana. Juan pasa.8.El profesor les reparte los exmenes a los estudiantes. El profesor reparte.9.Raquel os da las entradas. Raquel da.10. Mi madre compr los zapatos para m. Mi madre compr. If a line has a slope of 1/2 and a y-intercept of -6, what is the x-coordinate if the y-coordinate is 4 find the GCF of each pair of monomials.[tex]36x ^{2}y^{2}z^{2} [/tex]And[tex]24xy^{2}z^{3} [/tex]please help! What is the large area great forgrowing crops in Italy? How does the greenhouse effect trap heat? Lauren has found the following information during the research process for her informative paper:A map of lightning strikes in three neighboring states over the last 5 yearsA scientific description of the conditions in which lightning developsAn eye-witness account of a lightning strikeA detailed account of a day in the life of a storm chaserWhat is the most useful next step in the writing process for Lauren?A. Conduct her own study of nearby lightning strikes.B. Develop an organizational plan for these details.C. Determine how these sources relate to one another.D. Write an introduction and conclusion for her paper. what is residual waste ? a. waste that can be composted b. waste that can be recycled c. waste that can be recycled, but not composted d. waste that cannot be composted or recycled Chantelle had signed up for hockey. Her parents set a limit of $400 for costs for the season. It costs $250 to sign up plus $5 for each ice-time. What is the maximum number of ice-times that Chantelle can go to. Need help with history Rupert is teaching about the phylum Bryozoa to his students. Which point should he emphasize?A. that the lophophore is a circle of tentacles that helps in feedingB. that the lophophore is a circle of cilia that helps in movementC. that the lophophore is a circle of cnidocytes that help in stinging the preyD. that the lophophore is a circle of bioluminescent cells that help evade predators ___________. Is a process that breaks water down into the gases hydrogen and oxygen Evan drew a diagram to illustrate radiation.What do the arrows represent?gases mixing with particlesliquid moving through a vacuummoving particleselectromagnetic waves Why does weather vary from day to day? A. because weather is a complex interaction among many different variables that are constantly changingB. because cold fronts are always followed by a series of colder fronts, before a warm front returnsC. because the Sun's energy heats all parts of the Earth evenly but does not heat the atmosphereD. because the rotation of the Earth causes the atmosphere to expand and contract as it nears the Sun or Moon Here's a graph of a linear function. Write the equation that describes that function. what property of air allows it to flow down to the floor? Write an equation for the nth term of the given geometric sequence. 12, 156, 2028, ..., a