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STALIN [3.7K]
3 years ago
5

Keenan has 21 CDs and 33 DVDs. What is the ratio of DVDs to CDs?

Mathematics
2 answers:
mamaluj [8]3 years ago
7 0
33: 21 ...........................................
mote1985 [20]3 years ago
6 0
Your answer is 21:33
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Circle A has center (0, 0) and radius 3. Circle B has center (-5, 0) and radius 1. What sequence of transformations could be use
Dmitrij [34]

A translation of T(x, y) = (- 5, 2) and a dilation with center (- 5, 2) with a scale factor of 1 / 3 are necessary to transform circle A into circle B. (Correct choice: D)

<h3>What sequence of rigid transformations can be done on a circle</h3>

In this problem we must determine the sequence of transformations require to transform circle A into circle B. From analytical geometry we know that the equation of the circle in standard form is:

(x - h)² + (y - k)² = r²

Where:

  • (h, k) - Coordinates of the center.
  • r - Radius of the circle.

Then, we need to apply the following rigid transformations:

Translation

f(x, y) → f(x - h, y - k), where (h, k) is the translation vector.

Dilation with center at the center of the circle

r → k · r, where k is the scale factor.

The circle A is represented by x² + y² = 3, then we derive the expression for the circle B:

f(x, y) → f(x + 5, y - 2)

(x + 5)² + (y - 2)² = 9

r → k · r

(x + 5)² + (y - 2)² = (1 / 3)² · 9

(x + 5)² + (y - 2)² = 1

Then, a translation of T(x, y) = (- 5, 2) and a dilation with center (- 5, 2) are necessary to transform circle A into circle B.

To learn more on rigid transformations: brainly.com/question/28004150

#SPJ1

8 0
1 year ago
Create a set of five lengths so that:
lozanna [386]

Answer:

1, 2, 3, 7, 10

Step-by-step explanation:

5 0
2 years ago
Cual es el volumen del cubo de rubick cuya arista mide 3 cm
Natasha2012 [34]

For this case we are asked the following question:

"What is the volume of the rubick's cube whose edge measures 3 cm"

By definition, the volume of a cube is given by:

V = l ^ 3

Where:

l: Is the side or the edge of the cube

According to the statement we have:

l = 3 \ cm

Substituting:

V = 3 ^ 3\\V = 3 * 3 * 3\\V = 27

Finally, the volume of the cube is 27 \ cm ^ 3

Answer:

27 \ cm ^ 3

6 0
3 years ago
In what ways does adding a constant or coefficient to a quadratic equation affect the graph?
erastova [34]
<span>If you are adding a constant, then the graph is either raised or lowered k units.

For example.... If you have the graph of y = x^2 and now you add 3, so your new graph of x^2 + 3, will be the same graph as x^2 but raised vertically 3 units.
 
The graph of x^2 - 7 will be the graph of x^2 lowered vertically 7 units.


I hope my answer has come to your help. God bless and have a nice day ahead!</span>
4 0
3 years ago
Find the ratio of 5 feet to 10 yards (1 yard = 3 feet).
babunello [35]

Answer:

5 FT ; 10 X 3

5FT : 30FT

1:6

4 0
3 years ago
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