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
bezimeni [28]
3 years ago
5

A quadrilateral with vertices at A(4, –4), B(4, –16), C(12, –16), and D(12, –4) has been dilated with a center at the origin. Th

e image of D, point D, has coordinates (36, –12). What is the scale factor of the dilation?
1/9
1/3
3
9
Mathematics
2 answers:
Bess [88]3 years ago
8 0

Answer:

Scale factor of the dilation is 3            

Step-by-step explanation:

Given a quadrilateral with vertices at A(4, -4), B(4, -16), C(12, -16), and D(12, -4) has been dilated with a center at the origin. The image of D i.e coordinates of D after dilation are (36,-12).

we have to find the scale factor of the dilation.

As we know if the scale factor for dilation is k the new coordinates after dilation can be calculated as

(x,y) → (kx,ky)

As image of D given i.e

D(12,-4) → D'(36,-12)

⇒ 12 → 12k i.e 12k=36 ⇒ k=3

and -4 → -4k i.e -4k=-12 ⇒ k=3

hence, scale factor of the dilation is 3

erastova [34]3 years ago
6 0
I think the answer is 3, because D(12;-4) and D' is (36;-12). Then 36/12=3, -12/-4=3
(I hope it's true)!!! :)
You might be interested in
Which statement is true about the speeds of the two cars
galben [10]
What two cars, I don’t see anything
6 0
3 years ago
Which equivalent fractions can you use to find the sum of 2/8 + 3/9?
sattari [20]
You can you 72 which would make 2/8 18/72 and 3/9 24/72 which makes the sum 42/72.
7 0
3 years ago
Rewrite the expression without using grouping symbols 11(23-x)
Triss [41]
<span>11(23-x)
= 11(23) - 11x
= 253 - 11x</span>
7 0
3 years ago
Evaluate |3 - 5 + 7|. -5 5 -15 15
Semmy [17]

Answer:

5

Step-by-step explanation:

|3 - 5 + 7|

= |-2 + 7|

= |5| = 5

6 0
3 years ago
Need help finding the value of x
igor_vitrenko [27]

Answer:

The value of x is 26.

Step-by-step explanation:

In a triangle, the total angles is 180°. In order to find the value of x, you have to add up all the angles in terms of x and make it equals to 180°

2x + 3x + 50 = 180

5x + 50 = 180

5x = 180 - 50

5x = 130

x = 130 ÷ 5

x = 26

4 0
2 years ago
Read 2 more answers
Other questions:
  • For what values of x is the rational expression below undefined?
    7·1 answer
  • A high school track team has a grade point average of 3.36, with a standard deviation of 1.2. Their coach wants to identify the
    6·1 answer
  • After writing part of his novel, Thomas is now writing 16 pages per week. After 4 weeks, he has written 85 pages. Assume the rel
    11·1 answer
  • What is the denominator of the fraction 4/7
    13·2 answers
  • The rectangle below has an area of 81-x^2 square meters and a width of 9-x meters. What expression represents the length of the
    7·1 answer
  • Please I need help asap!!
    9·1 answer
  • Identify the variable in the algebraic expression.<br> 5x + 13
    13·1 answer
  • Im making this to get a new rank no need to answer answer if you like.
    9·1 answer
  • 821 X ______ = 8,210
    15·2 answers
  • Your original grades on your exams were: 75, 85, 90, 90, 100, 75, 80, 100, 90. You retake the exams and now your scores are: 85,
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!