1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ankoles [38]
3 years ago
14

What is the scale factor of the dilation?

Mathematics
2 answers:
Ket [755]3 years ago
6 0

Answer:

The scale factor of the dilation is 3.

Step-by-step explanation:

The scale factor of the dilation is

k=\frac{\text{Side of image}}{\text{Corresponding side of preimage}}

k=\frac{A'B'}{AB}             ... (1)

From the given figure it is clear that the coordinates of A' and B' are (3,15) and (12,15).

Using distance formula we get

D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

A'B'=\sqrt{(12-3)^2+(15-15)^2}=9

The coordinates of A and B are (1,5) and (4,5).

AB=\sqrt{(4-1)^2+(5-5)^2}=3

Substitute A'B'=9 and AB=3 in equation (1).

k=\frac{9}{3}

k=3

Therefore the scale factor of the dilation is 3.

wel3 years ago
4 0

Answer:

3

Step-by-step explanation:

D(1 , 1) to D'(3, 3)

so x (1 x 3)= 3

    y (1 x 3) = 3

SF = 3

D(1 , 5) to D'(3, 15)

so x (1 x 3)= 3

    y (5 x 3 ) = 15

SF = 3

Same on coordinate points B to B' and C to C'

so SF = 3

You might be interested in
If 4 dice are rolled, what is the number of ways in which at least 1 die shows 3?
UkoKoshka [18]

I think the number of ways is 671?

4 0
3 years ago
A square piece of paper 10 cm on a side is rolled to form the lateral surface area of a cylinder and then a top and bottom are a
Anika [276]

Answer:

The surface = pi*10cm2

Step-by-step explanation:

The area of any rectangle is Base *  Height,

We know that the square originally has 10cm High, when is rolled to form a cylinder, it's new shape has a bottom side that is equals to a circle.

The length of a circle is 2*pi*Radio= pi*Diameter.

Since the square has the same length in each side, we know that pi*Diameter= 10cm*pi

The surface (area) of the cylinder is= Base * Height= 10cm*10cm*pi

 

6 0
3 years ago
What is the solution to the equation-0.2(x-20)=44-x
Black_prince [1.1K]

Answer:

x = 50

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
1/3+1/3+1/3+1/3=4/3<br><br> is this answer correct?
natali 33 [55]
Yes but if you need it in mixed number form it’s 1 1/3
7 0
3 years ago
Esteban is reading a book with 16 pages. He has read 9 pages so far. How many pages does Esteban have left to read? Write two eq
Zielflug [23.3K]

Answer:

7 pages

Step-by-step explanation:

Given the total number of pages in the book are 16

The number of pages esteban already read are 9

Let the number of pages left out to read be x

Total number of pages = number of pages read + number of pages to be read

16=9+x

x=16-9

x=7 pages

Therefore There are 7 pages left out to be read.

8 0
3 years ago
Other questions:
  • Geometry:
    13·1 answer
  • Ill give u brainliest if u answer within the next 5min
    13·2 answers
  • The small copier makes 438 copies each day. The large copier makes 4 times as many copies each day. How many copies do both copi
    7·1 answer
  • How do you solve <br> C= 3 - 17
    10·2 answers
  • (8*10^(3))(4*10^(8))
    6·2 answers
  • 14 + -7 -3=????????????????????help
    6·2 answers
  • What weight of dry substance is in 50g of a 3% substance solution? What weight of an 8% solution can we have with the same weigh
    9·1 answer
  • Sally organizes data in a table to show the net change in the number of people subscribing and unsubscribing to her newsletter e
    6·1 answer
  • The price of a computer was marked up by 50% and then marked down by 50%.
    10·2 answers
  • Which graph represents the function f(x) = |XI – 4?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!