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
olganol [36]
3 years ago
14

I'M OFFERING 20 POINTS-

Mathematics
2 answers:
DochEvi [55]3 years ago
8 0

she is correct even check myself so it is scale factor 3; enlargement

Dafna11 [192]3 years ago
3 0

Answer:

Third option is correct. Scale factor 3 ; enlargement.

Step-by-step explanation:

It is given that the figure A'B'C'D' is a dilation of figure ABCD.

We know that after dilation the corresponding sides of image and preimage are in the same proportion.

The image of AD is A'D'.

From the figure it is noticed that the A(-1,2), D(-1,-1), A'(-3,6) and D'(-3,-3).

Distance formula is

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

AD=\sqrt{(-1+1)^2+(-1-2)^2}=\sqrt{9}=3

A'D'=\sqrt{(-3+3)^2+(-3-6)^2}=\sqrt{81}=9

Scale factor is constant which represents the relation between image and preimage.

k=\frac{A'D'}{AD}

k=\frac{9}{3}

k=3

Therefore the scale factor is 3.

If k>0 it means enlargement and if k<0 it means reduction. Therefore third option is correct.

You might be interested in
Write the following expression as a trigonometric function of a single angle.
wel
Sin(a+/-b)=sin(a)cos(b)+/-cos(a)sin(b)

sin(17+26)=sin(17)cos(26)+cos(17)sin(26)

Answer: sin(43)
7 0
3 years ago
The volume of cylinder is 448 pie cm cube and height 7 cm find its radius<br>​
Verizon [17]

<u>Answer:</u>

r =\bf 8 \space\ cm

<u>Step-by-step explanation:</u>

The formula for volume of a cylinder is as follows:

\boxed{Volume = \pi r^2 h}

where:

• r = radius (? cm)

• h = height (7 cm).

Substituting the values into the formula:
448 \pi  = \pi \times r^2 \times 7

Now solve for r:

⇒ r^2 = \frac{448 \pi }{\pi \times 7}

⇒ r = \sqrt{64}

⇒ r =\bf 8 \space\ cm

8 0
2 years ago
Read 2 more answers
Simplify the following expression.<br> -16 - 8/2 + 25 ÷ 5 + 1<br> -18<br> 6<br> 10<br> -6
Andrews [41]
The answer is -6. Thought there is a chance I am wrong. Need an explanation?
6 0
3 years ago
An indirect proof assumes:
valkas [14]

Answer: 1. the negative of the conclusion is true

5 0
3 years ago
Read 2 more answers
Help with math work
Dennis_Churaev [7]

Answers for different section are given below;

<h3>What is Function?</h3>

The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.

Here, given function;

   f(x) = -x² - 4x + 6

1.    If we take -1 common from the given function, we get

                      f(x) = -1 (x² + 4x - 6)

                      f(x) = -1 (x² + 4x) + 6

      Thus, first block contains -1 and second block contains 4.

     

2.   Then we add half of the coefficient of x², (b/2)², inside the bracket and subtract it outside a times, a(b/2)².

                 f(x) = -1 ( x² + 2. 2x + 2²) +2² + 6

                 f(x) = -1 ( x² + 4x + 2²) +4 + 6

Thus, first block contains -1, second block contains 4, third block contains 4, and fourth block contains 4.

3. Then we factorize the bracket and simplify outside the bracket;

                 f(x) = -1 (x + 2)² + 10

Thus, first block contains -1, second block contains 2 and third block contains 10.

Learn more about Function from:

brainly.com/question/12431044

#SPJ1

5 0
2 years ago
Other questions:
  • A number that is begins divided
    5·1 answer
  • Complete the pattern 43,37,31,25
    12·1 answer
  • (14 − 7)7<br> [(3 + 4)2]2
    12·1 answer
  • A community college enrolled 96,000 students in 2007, and the enrollment has increased by 7% every year since then. Graph the ex
    15·1 answer
  • What is z2+z+4z3+4z2?
    5·2 answers
  • What is the sum of the fractions 3over5 +7/5
    7·1 answer
  • BRAINLIEST!!! ANSWER WITH EXPLANATION! ASAP
    10·1 answer
  • Please Help with this question..
    10·1 answer
  • Last one .. worth 20 points please .
    12·1 answer
  • 10.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!