The circumference of a circle changes from 20 to 4 after a dilation. What was the scale factor of the dilation?
O
25
O 5
O25

Answers

Answer 1

Answer:

1/5

Step-by-step explanation:

we know that

To find the scale factor divide the circumference of the dilated circle by the circumference of the original circle

so

Scale factor= 4/20=1/5


Related Questions

Help me. I'm so stinking confused.

Answers

Answer: There are 7 coffee shops per square mile

Step-by-step explanation:

1,400,000/100,000=14

14x17=238

238/34=7

Simplify.

3/2(x+3/4)−(x+1)

Answers

Answer:

x/2 + 1/8

Step-by-step explanation:

3/2(x+3/4) - (x+1)

3/2x + 9/8 - x -1

x/2 + 1/8

ANOW is rotated 90° about the origin.
Draw the image of this rotation.

Answers

The rotation of the triangle is shown with the new coordinates N' = (3, -7), O' = (-4,-5) and W' = (-1, -1).

What are coordinates?A pair of numbers that use the horizontal and vertical separations from the two reference axes to describe a point's location on a coordinate plane. Typically represented by the x-value and y-value pair (x,y).

So, a point (x, y) becomes (-y, x) if it is rotated 90° anticlockwise with respect to the origin.

Since, N = (-7, -3) ⇒ N' = (3, -7)O = (-5, 4) ⇒ O' = (-4,-5)W = (-2, 1) ⇒ W' = (-1, -1)

(Refer to the image attached below)

Therefore, the rotation of the triangle is shown with the new coordinates N' = (3, -7), O' = (-4,-5) and W' = (-1, -1).

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help i’m haveing a hard time

Answers

The result of the function f(x)=x+6 when x= -2,0 and 5 is

f(-2)= 4

f(0)= 6

f(5) = 11

The function  is f(x) = x+6

The function is an expression that shows the relationship between one variable and another variable.  One variable will be independent variable and another variable will be dependent variable.

The given function f(x) = x+6 when x =-2, 0 and 5. Here we have to substitute the values of x in the given function

f(x)  = x+6

f(-2) = -2+6

= 4

f(0) = 0+6

= 6

f(5) = 5+6

= 11

Hence, the result of the function f(x)=x+6 when x= -2,0 and 5 is

f(-2)= 4

f(0)= 6

f(5) = 11

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Construct RS so that RS is bisector to PQ

Answers

To bisect is to cut into two equal parts. Therefore, in the picture below, line segment PS should be congruent to line segment QS.

See details:

find the angles of this​

Answers

Angles of ∠y is 45° and ∠x is 135°.

What are angles?

An angle is a figure in Euclidean geometry made up of two rays that share a common terminal and are referred to as the angle's sides and vertices, respectively. Angles created by two rays are in the plane where the rays are located. The meeting of two planes also creates angles. We refer to these as dihedral angles.

Given Data

SRQ = 130°

∠R = 130°

As PR is the same line

So. angles of the line is 180°.

∠Y + ∠R = 180

∠y = 180 - 135

∠y = 45°

Now, PQ is the straight line

∠y +∠x = 180

∠x = 180-45

∠x = 135°

Angles of ∠y is 45° and ∠x is 135°.

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Your friend has $80 when he goes to the fair. He spends $4 to enter the fair and $12 on food. Rides at the fair cost $1.25 per ride.

The function f(x) = -1.25x + 64 can be used to determine how much money he has left over after x rides? What does f(17) represent?

Group of answer choices

Your friend paid for 17 rides and spent $42.75.

Your friend paid for 17 rides and had $37.25 left over.

Your friend paid for 17 rides and had $42.75 left over.

Your friend paid for 17 rides and spent $37.25.

Answers

The function f(17) represent your friend paid for 17 rides and had $42.75 left over.

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

Equations are classified based on degree (value of highest exponents) as linear, quadratic, cubic and so on. Variables can be dependent or independent. Dependent variables depend on other variable while an independent variable do not depend.

Let f(x) represent the amount that the rider has left over after x rides.

f(x) = -1.25x + 64

f(17) = -1.25(17) + 64 = 42.75

f(17) = $42.75

f(17) represent the money left

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What are the y-intercept and the slope of the graph of the following equation? 3x+4y=12

Answers

[tex]3x+4y=12\implies 4y=-3x+12\implies y=\cfrac{-3x+12}{4} \\\\\\ y = \cfrac{-3x}{4}+\cfrac{12}{4}\implies y=\stackrel{\stackrel{m}{\downarrow }}{-\cfrac{3}{4}}x+\stackrel{\stackrel{b}{\downarrow }}{3}\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}[/tex]

Plot the following ordered pairs on the same Cartesian plane for each one.
1.(2,3)

2.(0,-7)

3.(-5,9)

Answers

A graph of the given ordered pairs has been plotted as shown in the image attached below.

What is a graph?

A graph can be defined as a type of chart that's commonly used to graphically represent data on both the horizontal and vertical lines of a cartesian coordinate, which are the x-axis and y-axis.

What is an ordered pair?

An ordered pair can be defined as a pair of two elements that are typically written in a fixed order within parentheses as (x, y), which represents the x-axis (abscissa) and the y-axis (ordinate) on a coordinate plane.

In conclusion, a graph which represents the given ordered pairs shows a discrete function.

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Which point is located on the y axis iready

Answers

0,-3 point because the 0 is the only number on the actual y-axis out of all of these

x^2+25 find a polynomial corresponding factored form

Answers

By using algebraic handling, the factored form of the polynomial is (x + i 5) · (x - i 5).

How to factor a quadratic equations

In this question we have the case of a quadratic equation of the form y = x² + b², the factored form of this polynomial consists in a equivalent form consisting in a product of simpler terms. There is a similar expression whose formula is:

x² - a² = (x + a) · (x - a)

Now we proceed to modify the expression into a factored form:

x² + 25                         Givenx² - (- 25)                      - (- a) = ax² - [(- 1) · 25]                (- a) · b = - a · bx² - i² · 25                     Definition of complex number(x + i 5) · (x - i 5)           Difference of squares / Results

The factored form of the polynomial x² + 25 is (x + i 5) · (x - i 5).

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Which of the contexts below could not be modeled by an exponential function?
A music service has a fixed monthly cost and charges $0.75 for each downloaded
song.
A town's population shrinks at a rate of 4.2% every year.
A population of 200 bacteria triples every week.
A radioactive compound decays at a rate of 10% per hour.

Answers

Answer:

The music service one

After a 65% reduction, you purchase a new washing machine on sale for $224. What was the original price of the washing machine?
The original price was ___$

Answers

Answer:

$369.60

Step-by-step explanation:

65% = 0.65

1.00 + 0.65 = 1.65

$224 * 1.65 = $369.60

the original price was $369.60

Answer:

The original price was 640

Step-by-step explanation:

Let the price be x

100%-65%=35%

35%/100%*x=224

35x=22400

x=640

this is my first question of my unit test sorry i cant give much

Answers

The answer is 876. Hope this helps.

Answer:

Option 2: 876

Step-by-step explanation:

[tex]\frac{13,140}{15} = 876[/tex]

What is 3.68086257145 divided by 6.533 * 4,085,0811

Answers

When  3.68086257145 divided by 6.533 * 4,085,0811 we get 1.379228624370833401829E-8

The methods of division are of three types according to the difficulty level. These are the chunking method or division by repeated subtraction, short division method or bus stop method and long division method.

The division of two numbers can be calculated using the following formula:

Dividend / Divisor = Quotient + Remainder.

The number that is being divided in this case is known as the dividend. The number that divides the number (dividend) into equal parts is known as the divisor.

The quotient is the result of the division operation.

The remainder is the leftover number in the division operation.

We have been given that

3.68086257145 divided by 6.533× 4,085,0811

First we simplify multiplication part

6.533× 4,085,0811  = 266878348.263

Now

3.68086257145 divided by 266878348.263

3.68086257145 ÷ 266878348.263

= 1.379228624370833401829E-8

Hence , 1.379228624370833401829E-8 is the result of the 3.68086257145 divided by 6.533× 4,085,0811 .

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3) Mr. G. was once offered a job as a car salesperson. Below is a partial compensation table they used to calculate monthly pay. (10 points)
Number cars sold 5 6 7 8 9 10
Salary 2750 3200 3650 4100 4550 5000

a. Is this linear? How do you know?
b. Suppose Mr. G thought he could sell 23 cars during one month. What would his total monthly pay be? Show your work!
c. If the gross pay is $6,800, how many cars were sold? Show your work!

Answers

The relation on the table of values is a linear model,

The total monthly pay is $10850 when he sells 23 cars in one monthThe number of cars is 14 if the gross pay is $6,800

How to determine if the relation is linear?

The table of values is given as

Number cars sold 5 6 7 8 9 10

Salary 2750 3200 3650 4100 4550 5000

On the table of values, we can see that:

As the number of cars increase by 1, the salary increases by 450

This means that the table has a constant rate of 450

Relations that have a constant rate are  linear relations

Hence, the table of values is a linear relation

The total monthly pay

In (a), we have

Slope, m = 450

A linear equation is represented as

y = m(x - x1) + y1

So, we have

y = 450(x - 5) + 2750

Evaluate

y = 450x + 500

When the number of cars is 23, we have

y = 450 x 23 + 500

Evaluate

y = 10850

Hence, the total monthly pay is $10850

The number of cars

Here, we have

y = 6800

This gives

450x + 500 = 6800

This gives

450x = 6300

Evaluate

x = 14

Hence, the number of cars is 14

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please help, question is on the image.

Answers

The number of gigabytes Salma can use while staying in her budget is less than 4.

What is meant by the term inequality?

In mathematics, an inequality is a connection between two expressions and values that aren't equal to each other.

Rule 1: Once inequalities are linked, they can be crossed. As a result, if an is greater than b and b is higher than c, a will be greater than c as well.Rule 2: When you swap the values, this same sign also flips.Rule 3: An inequality could be either > or, but not both at the same time.

As per the given question;

The total budget of Salma is $75.

The flat cost is $55.

The cost per gigabytes is $5.

Let the number of gigabytes used be 'x'.

Then, the inequality becomes.

55 + 5x < 75

Subtracting 55 from both sides.

55 + 5x - 55 < 75  - 55

5x < 20

Divide both sides by the 5

x < 4

Thus, the number of  gigabytes Salma can use while staying in her budget is less than 4.

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Help me please I am in need

Answers

At 1 hour, 3 hours and 6.5 hours she travels 36 miles, 108 miles and 234 miles respectively using the concept of average speed of an object.

As per the question statement, Clare covers a distance of 0 miles, 72 miles, 144 miles and 216 miles in 0 hours, 2 hours, 4 hours and 6 hours respectively.

We are supposed to find out the distance travelled by her in 1 hour, 3 hours and 6.5 hours.

We will use the concept of average speed of an object which is as follows

average speed = total distance divided by the total time taken

average speed = 216/6 = 36 miles per hour

Hence at 1 hour, distance = 1 * 36 = 36 miles

at 3 hours, distance = 3 * 36 =108 miles

at 6.5 hours, distance = 6.5 * 36 = 234 miles

Average Speed : The overall distance the thing travels in a given amount of time is its average speed.

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Probability of an event
A class is made up of 10 boys and 10 girls. Half of the boys wear glasses. A student is selected at random from the class. What is the probability that the
student is a boy with glasses?
Write your answer as a fraction in simplest form.

Answers

Answer: ¼ or 25% or 0.25

Step-by-step explanation:

5 boys = 25% of the class

5/20

¼ or 25% or 0.25


Number 21… please explain I don’t know how to do this

Answers

Answer:

The lengths of the sides are 18 ft, 18 ft, and 24 ft.

Draw the image of \triangle ABC△ABCtriangle, A, B, C under a dilation whose center is CCC and scale factor is 222.

Answers

The image of triangle ABC△ABC triangle, A, B, C under a dilation whose center is CCC and scale factor is 222. The dimensions of the new triangle are 8.2, 12.8, and 10.2 units. The graph of the Δ is given below.

What is a transformation of a point?

A spatial transformation is each mapping of the feature space to itself and it maintains some spatial correlation between figures.

The △ABC is given below.

The dimensions of triangle are approximately 4.1, 6.4, and 5.1.

And scale factor of the dilation is 2.

If △ABC is dilated by the scale factor of 2 as a center of C.

Then dimensions of the new △A'B'C will be

A'C = AC × 2

A'C = 4.1× 2

A'C = 8.2 units

B'C = BC × 2

B'C = 6.4 × 2

B'C = 12.8 units

B'A' = BA × 2

B'A' = 5.1 × 2

B'A' = 10.2 units

Then the dimensions of new triangle are 8.2, 12.8, and 10.2 units.

The graph of triangle is given below:

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Grace has a coupon for $2 off the regular price of each pair of jeans she buys. She buys 4 pairs of jeans with a regular price of $23 each. What is the total cost for her jeans?

Answers

The total cost for her jeans will be $84.

How to calculate the cost?

From the information, Grace has a coupon for $2 off the regular price of each pair of jeans she buys and she buys 4 pairs of jeans with a regular price of $23 each.

The total cost for her jeans will be:

= (4 × $23) - (4 × $2)

= $92 - $8

= $84

Therefore, it should be noted that the total cost is $84.

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two gears, A and B. are arranged so that the teeth of one gear is mesh with the teeth of another. Gear A turns clockwise and has 54 teeth. Gear B turns counterclockwise and has 36 teeth. If gear A makes 5.5 rotations, how many turns will gear B make?

Answers

The number of turns gear B will make is 8.25 turns

How to find the number of turns gear B will make

Given data

Gear A turns clockwise and has 54 teeth

Gear B turns counterclockwise and has 36 teeth

gear A makes 5.5 rotations

One of the gears is driving the other hence the distance covered by each of the gears is constant.

The distance is the product of the number of rotations and the number of teeth and this should be a constant

Therefore, let the number of rotations of gear B be x

54 teeth * 5.5 rotations = 36 teeth * x rotations

x rotations = ( 54 teeth * 5.5 rotations ) / 36 teeth

x rotations = 54/36 * 5.5

x rotations = 1.5 * 5.5

x rotations = 8.25

We can therefore say that gear B will make 8.25 rotations

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a library subscribes to two different weekly news magazines, each of which is supposed to arrive in wednesday's mail. in actuality, each one may arrive on wednesday, thursday, friday, or saturday. suppose the two arrive independently of one another, and for each one p(wed.)

Answers

The two come separately, and the p(wed.) value for each one is 0.0841. It is founded on likelihood on probability.

What does probability mean in math?

Probability is a way to gauge how likely something is to happen. Many things are hard to predict with complete certainty. We can only forecast how likely an event is to occur using it, or how likely it is to occur.

The probability is typically defined as the proportion of positive outcomes to all outcomes in the sample space. Probability of an event P(E) = (Number of favourable outcomes) is how it is stated (Sample space).

based on the facts provided;

p(0) = p(w,w)

= 0.29² = 0.0841

p(1) = p(t, w+t) + p(w, t)

= 2p(w,t) +p(t,t) = 2·.29·.37 + .37² = 0.3515

p(2) = p(f, w+t+f) +p(w+t, f)

= 0.16(2(.29+.37)+.16) = 0.2368

p(3) = p(s, w+t+f+s) +p(w+t+f, s)

= 0.18(2(.29+.37+.16) +.18) = 0.3276

In summary, your pmf is ...

y : p(y)

0 : 0.0841

1 : 0.3515

2 : 0.2368

3 : 0.3276

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What number makes the fractions equivalent?

Answers

different numerators and denominators but are equal to the same value.
-
if you need a specific number answer from a problem, you'd need to attach a picture

4p−5(p+6) Help plssss

Answers

Answer: -p - 30

Step-by-step explanation:

         We will simplify the expression.

   Given:

4p - 5(p + 6)

   Distirubte the negative 5:

4p - 5p - 30

   Combine like terms:

-p - 30

Convert 0.17 to a fraction in simplest form and a percent.

Answers

Answer: 17/100, which would be 17%

Step-by-step explanation:

2x - y = 7
Find the x and y intercept

Answers

Answer:
y-intercept = -7
x-intercept = 3.5

Explanation:
y-intercept: 2x - y = 7 rearranges to y = 2x - 7 and in y = mx + b form, b is the y-intercept.

x-intercept: To find x-intercept, substitute y with 0 and solve for x. You get x = 3.5.

The first and the last terms of two Arithme- tic progressions are the same. The first A.P. has 51 terms with a common difference of 6. Find the number of terms of the 2nd A.P if its common difference is given as 4.

Answers

The number of terms of the 2nd A.P if its common difference is given as 4 is 76.

What is common difference?

The difference between consecutive integers in an arithematic sequence is a frequent distinction. Simply subtract the first word from the second term, or the second from the third, or anything similar, to find it. See how we have to add 8 each time to reach the following term? Thus, our common difference is eight.

1st A.P

Let 1st term be a d = 6

Therefore T51 = a + ( 51 - 1 )6

= a + 300

Now 2nd A.P

let the 1st term be a

Therefore for n no. of terms,

lats term,  a + ( n - 1 )4

But according to the question:

 a + ( n - 1 )4 =  a + 300

n - 1 = 300/4

n = 75 + 1

n = 76

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I need help pls its really hard for me rn and teach me how to do it

Answers

The sequence that contains all the given terms is:

aₙ = -18 + 6*n

Then the correct option is C.

Which sequence can be used to find the n-th term?

Here we have the elements:

a₃ = 0

a₄ = 6

a₅ = 12

a₆ = 18

a₇ = 24

So each term adds 6 to the previous one, so trivially the relation is of the form:

aₙ = aₙ₋₁ + 6

Now we need to find the first term.

We can rewrite the above equation as:

aₙ₋₁ = aₙ - 6

Then we willget:

a₂ = a₃ - 6 = 0 - 6 = -6

a₁ = a₂ - 6 = -6 - 6 = -12

a₀ = a₁ - 6 = -18

Then the sequence is:

aₙ = -18 + 6*n

Then the correct option is C.

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an investigator would like to study the relationship between the incidence of disease x and blood type. she would probably use the scientific method because she is unable to manipulate blood type. she will be (able, unable) to assert that having a certain blood type causes one to be more prone to disease x. One of the benefits of spending sizable sums of money for social responsibility initiatives and good corporate citizenship over a multi-year period is?. Find the volume of the figure. Round to the nearest hundredth of a unit. 23123123123131231231231 the wellness program at your local community center is focusing this week on people struggling with depression. given what you have learned in your studies of martin seligmans work on , you recognize that depression is often connected to the idea that adverse events are inescapable and uncontrollable. Simplify (-4b)(-19b).76b-76b766-76b The _______ amendment prohibits states from denying citizens the right to vote on the basis of race, color or previous condition of servitude. a company purchases merchandise with a catalog price of $29,000. the company receives a 35% trade discount from the seller. the seller also offers credit terms of 2/10, n/30. assuming no returns were made and that payment was made within the discount period, what is the net cost of the merchandise? In Athenian society, who was allowed to vote?all womenall foreignersall citizensall men Write in exponential notation.(-6)(-6)(-6)(-6) = Can someone please help ASAP assignment due tomorrow!No 4. In a small town, the population increased from 25,000 people in 2010 to32,000 people in 2020. What is the percent increase in population? What is the answer Identify ONE way in which ethnic divisions affected the development of land-based empires in the period 1450-1750. Just in need of help please A normal distribution has a mean of u = 60 and a standard deviation of o = 18. For each of the follow-ing samples, compute the z-score for the sample meanand determine whether the sample mean is a typical,representative value or an extreme value for a sampleof this size.a. M= 67 for n = 4 scoresb. M = 67 for n = = 36 scores Find an equation of the form f(x)=ax^2+bx+c. must solve algebraically and check using a calculator (state, the steps used to perform the check).f(1)=4, f(2)=13, f(4)=46 write a letter ( just starts from the address and end at the intro please) to your friend (informal of course) telling him or her what you do to remain healthy Your attitude towards child rearing and child guidance. (How should children be brought up and raised?) Find the area of the following polygon if AB= 12 cm, AC = 2.4 cm, CE = 6 cm, AD 4.8 cm, CF = GE = 3.6 cm, DH = 2.4 cm. = school children shared oranges as follows .Jonas got 1/3 of the total and the remaining were shared between Mary and Rejoice in the ratio 3:2. if Rejoice got 24 oranges How many did Jonas get