Mathematics High School

Ifa line segment has a length of 12 units and after a dilation the image
length is 4 units, what was the scale factor?
A. 1/3
B. 3
C. 8

Ifa Line Segment Has A Length Of 12 Units And After A Dilation The Imagelength Is 4 Units, What Was The

Answers

Answer 1
Answer: Choice A) 1/3

================================================

Work Shown:

x = preimage length = 12

y = image length = 4

z = scale factor

z = y/x

z = 4/12

z = (1*4)/(3*4)

z = 1/3

The scale factor is 1/3.

This means the image is 1/3 of the length of the preimage.

Related Questions

Stacy starts a savings account with $15. Each month she deposits 6$ more into her
account. Stacy now has $81 in her account. Write an equation, then solve, to find how
many months Stacy has deposited money into her savings account.

Answers

Answer:

After 11 months, Stacy will have $81 in her savings account.

Step-by-step explanation:

15 + 6m = 81

6m = 66

m = 11

Justin has 2 red marbles, 7 blue marbles, and 5 green marbles. How many total marbles does Justin have?

Answers

Answer:

14

Step-by-step explanation:

2+7+5

Answer:

14 total marbles.

Step-by-step explanation:

I'm pretty sure we are supposed to use addition, so

2 red marbles + 7 blue marbles + 5 green marbles = 14 marbles

Hope this helps!

I need a quick answer plss

Answers

Answer:

girl u didnt add the question...

Step-by-step explanation:

Which equation is not linear

A. -4x + 2y =7
B. x/4 =y
C. X=-5
D. 2/x + 3/y

[ that's / not a division it's a fraction bar]

Answers

The answer to this question is C.X=-5

anyone got an Amazon gift card code that i could use​

Answers

Answer:

no

Step-by-step explanation:

Answer:

No, I do not, sorry

Step-by-step explanation:

The menu for a restaurant lists 3 types of soup, 5 types of sandwiches,
and 4 types of chips. If a meal is one soup, one sandwich, & one bag of
chips, how many meals can you make? * pls help

1. 12
2.15
3.20
4.60

Answers

The answer is 20 good job

Sarah is walking diagonally across a park as modeled by the equation y = x − 1. Suppose Marcus starts walking at the point (0, 9) so his path is perpendicular to Sarah's. At what point will Sarah's path and Marcus's path intersect?

Answers

Answer:

[tex]A(10,9)[/tex]

Step-by-step explanation:

Consider the attached figure.

The equation is [tex]y=x-1[/tex]

At [tex]x=0;y=0-1=-1[/tex]

At [tex]y=0;0=x-1,x=1[/tex]

Plot points [tex](0,-1)\,,\,(1,0)[/tex].

Marcus starts walking at the point B(0, 9) so that his path is perpendicular to Sarah's at point A.

From the graph, Sarah's path and Marcus's path intersect at point [tex]A(10,9)[/tex]

The triangles below are similar. What is the length of the missing side?





2


9


6


8

Answers

Answer:

8

Step-by-step explanation:

it's multiplied by 2 as you go to triangle 2

Answer:

x = 8

Step-by-step explanation:

Since the triangles are similar then the ratios of corresponding sides are equal, that is

[tex]\frac{5}{10}[/tex] = [tex]\frac{4}{x}[/tex] ( cross- multiply )

5x = 40 ( divide both sides by 5 )

x = 8

what is the integer of The change in a balloon's volume when it loses 450 cm3 of air.

Answers

Answer:

The integer change is -450 cm^3

Step-by-step explanation:

Here, we want to write the integer of the change in the volume of a ballon when it loses 450 cm^3 of air

Losing this volume means we are subtracting 450 from the original volume

This represents a change of -450 cm^3

Kesia is practicing her free throws. She made 5/8 of the shots she took at basketball practice today. use long division to find the decimal equivalent of 5/8/. ?

Answers

Answer:

0.625

Step-by-step explanation:

Answer:

0.625

Step-by-step explanation:

hope it helped!

PLEASE HELP WILL MARK BRAINLIEST IM Litteraly crying im gonna faill plsssss!!!

Answers

Answer:

True true false true

hope this helps

Step-by-step explanation:

Answer:

True true false true

Step-by-step explanation:

A school lunch costs $2.50. A monthly lunch pass costs $40.00. Which inequality represents the number x of lunches you must purchase for the monthly pass to be a better deal?

Answers

Answer:

The inequality 2.50x>40.00 represents the number of lunches needed to be purchased for the monthly lunch pass to be a better deal.

Step-by-step explanation:

Given that:

Cost of each lunch = $2.50

Cost of monthly lunch pass = $40.00

Number of lunches = x

For making the monthly pass a better deal, the cost of lunches should be greater than the cost of monthly lunches, therefore

Cost of lunch * Number of lunches > Cost of monthly lunch pass

2.50x > 40.00

Hence,

The inequality 2.50x>40.00 represents the number of lunches needed to be purchased for the monthly lunch pass to be a better deal.

Answer:

2.50x > 40.00

$2.50 times a number of lunches is greater than $40.

Step-by-step explanation:

What is the slope of a line perpendicular to the line whose equation is x+y=2

Answers

Answer:

x+y-2=0

Step-by-step explanation:

thats ur anwser you are welcome:)

HELP Did you know that chickens sometimes eat vegetables and fruits? A farmer likes to give the chickens apples to share. The farmer observes that 3 chickens eat 5 apples. What is the ratio of the number of chickens to apples?

5:2?
5:3?
2:5?
3:5?

Answers

Answer:

3:5

Step-by-step explanation:

help asap!!! it’s due in 20 minutes .

Answers

Answer:

ab

Step-by-step explanation:

How do you 4/5 write
as a percentage?
Write your answer using a percent sign (%).

Answers

Answer:

80%

Step-by-step explanation:

100 / 5 = 20

4 * 20 = 80

80%

Done!

Graph y=-|x|+10 PLS TELL ME THE CORD NUMBERS I WILL GIVE YOU MORE POINTS PLS AWNSER THIS QUICKLY!

Answers

Answer: answer is in the ss i put

Source:trust me bro

Compared to last year, the population of boom town has increased by 24%. The population is now 6,600. What was the population last year?

Answers

Answer:

1,584

Step-by-step explanation:

6,600 multiplied by 24%(or 0.24) is 1,584

Can someone please help me solve this maths question?

Answers

Answer:

N and P are equal to 48 degrees

Step-by-step explanation:

1. 3y^2=12y^2−144

2. Subtract 3y^2 from both sides

3. add 144 to both sides

4. 9y^2= 144

5. Divide both sides by 9

6. y^2 = 16

7. Take the square root of 16 ( which is y=±√16)

8.  y = 4 or y = -4

(in this case, Y would equal 4 since the angles are not negative lol)

9. Plug 4 into the equations

10. Compare each answer to see if they are equal

11. submit!

Answer:

∠ N = ∠ P = 48°

Step-by-step explanation:

Δ KMP and Δ LJN are similar ( AA postulate ), then corresponding angles are congruent,  that is

∠ P = ∠ N

12y² - 144 = 3y² ( subtract 3y² from both sides )

9y² - 144 = 0 ( add 144 to both sides )

9y² = 144 ( divide both sides by 9 )

y² = 16 ( take the square root of both sides )

y = [tex]\sqrt{16}[/tex] = 4

Then

∠ N = 3y² = 3(4)² = 3(16) = 48² = ∠ P

The answer. X=7 Ik that

Answers

Answer:

C: 147°

Step-by-step explanation:

Based on looking, the most appropriate answer should be C, which is 147°.

TWO QUESTIONS PLS HELP ASAP

Answers

Answer: 4. (-1,-1) 3. (3,-2)

4)

Set the equations equal to each other.

4x+3=-x-2

Subtract 3 from both sides

4x=-x-5

Add x to both sides

5x=-5

Divide both sides by 5

x=-1

Next, replace x with -1 in either equation to find y.

-(-1)-2=y

-1=y


3)

Do the same thing for this one and set them equal to each other

-2x+4=-1/3x-1

Add 1 to both sides

-2x+5=-1/3x

Add 2x to both sides

5=5/3x

Divide both sides by 5/3

x=3

Next, replace x with 3 in either equation

-2(3)+4=y

-2=y




A display in a grocery store has 120 pieces of fruit. Apples make up 3/5 of the display, and oranges make up 2/5 of the display. If 1/2 of the apples are green, how many green apples are there?

Answers

Answer:

36 green apples

Step-by-step explanation:

First, you should divide 120 by 5 since it is 3:2 and the denominator is 5.  Since each part there are 24 fruits, you should now multiply that number by 3 which is 72.  Since 1/2 of the apple display are green, you would need to divided 72 by 2 which gets you the answer of 36 green apples.

Zinnia and Ruby earn $58 per week for delivering pizzas. Zinnia worked for x weeks and earned an additional total bonus of $13. Ruby worked for y weeks. Which expression shows the total money, in dollars, that Zinnia and Ruby earned for delivering pizzas? (5 points) Question 3 options: 1) 71x + 58y 2) 58x − 13 + 58y 3) 58x + 71y 4) 58x + 13 + 58y

Answers

Answer:

uh I am pretty sure that it is $28 I'm not sure I'm only in 6th grade

Step-by-step explanation:


In order for Josh to graph the solution to the inequality 4x - 2y > 6, which of the following steps does he need to use? Select all that apply.

Shade above the line.
Solve the inequality as y < 2x-3.
Draw the line y=2x-3 as a solid line.
Draw the line y=2x-3 as a dashed line.
Shade below the line.
Solve the inequality as y> 2x-3.

Answers

Solve the inequality as y < 2x-3.

Draw the line y=2x-3 as a dashed line.

Shade below the line.

Josh needs to follow the steps to draw the required inequality graph.

Solve the inequality y < 2x - 3 by solving for the x and y-interceptDraw the straight line y < 2x - 3 as a dashed line (since we have less than sign )Shade below the line. (Below the line are shaded for inequality sign that is "less than")

Inequality expressions are expressions that are not separated by an equal sign.

Given the inequality expression 4x - 2y > 6,

Dividing through by 2 will give:

4x/2 - 2y/2 > 6/2

2x - y > 3

Make y the subject of the formula

-y > -2x + 3

y < 2x -3

For Josh to plot the inequality graph of y < 2x - 3, he needs to follow the process;

Solve the inequality y < 2x - 3 by solving for the x and y-interceptDraw the straight line y < 2x - 3 as a dashed line (since we have less than sign )Shade below the line. (Below the line are shaded for inequality sign that is "less than")

Learn more here: https://brainly.com/question/6874464

Solve the equation 2(3x + 7) + 5 = 49.

Answers

Answer:

x=5

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

Given 3,8,14,x+6,2x-3,25,32,50 are in ascending order , whose median is 18. Find the unknown terms.​

Answers

because we know that the number in between x+6 and 2x-3 is 18, we can solve for x by doing (x+6+2x-3)/2=18. this simplifies to 3x+3=36, or x=11.

1. Write a story about Sylvia's bike ride home. Include as many details as you
can about distance, time, and speed. (You can refer to the segment #'s in
your story if you find it helpful)

Answers

Answer:

sylvia is biking home (segment 1) she is traveling at a constant rate of a mile every 15 minutes, she then takes a 20 minute break relizing she dropped something, she goes back and finds it ten minutes later (3) then she bikes home at a rate of 7 miles per 30 minutes.

Step-by-step explanation:

Which number can each term of the equation be multiplied by to eliminate the fractions before solving?
-3/4m-1/2=2+1/4m

Answers

Answer: 4

Step-by-step explanation: 4 was the biggest denominator in that equation. so if we multiply by 4 on all the terms, all the denominators will go away. we will not have any more fractions!

The Big Time Band put on a community concert. A total of 1,236 people attended the concert. There were twice as many adults as children who attended the concert. How many adults attended the concert?

Answers

Answer:

412 adults

Step-by-step explanation:

Let the number of adults be x

Let the number of children be y

If a total of 1,236 people attended the concert, then;

x + y = 1236 .....1

If there were twice as many adults as children who attended the concert, then;

y = 2x

Substitute y = 2x into 1

x + 2x = 1236

3x= 1236

x = 1236/3

x = 412

Hence 412 adults attended the concert.

Write the equation in Standard Form. A>0

y +2 = 2/7 (x -1)

I’ll mark brainliest

Answers

That should be it Y+2=2/7(x-1) -> y+2=2/7x-2/7 -> y=2/7x-4/7
Final answer: y=2/7x-4/7
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