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AnnyKZ [126]
2 years ago
7

A cell phone company charges $20 for a customer to open a new account and $35 for each month of phone service.

Mathematics
1 answer:
lorasvet [3.4K]2 years ago
6 0

Answer:

y=4/5 x-3

Step-by-step explanation:

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How to write 1/4 as a decimal number.
Sveta_85 [38]

Answer:

0.25

Step-by-step explanation:

1 divided by 4

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Which equation models a proportional relationship with the unit rate of 3?
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Y=3x please mark as brainliest:)
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4x + 9 + = 24 matematicas
Harlamova29_29 [7]

Answer:

3.75

Step-by-step explanation:

4x+9=24

4x=24-9

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x=15/4

x=3.75

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Use rounding to estimate the difference of 18.14 - 9.88.<br><br> A. 6<br> B. 9<br> C. 7<br> D. 8
Anna35 [415]

Answer:


D. 8 is the answer


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2 years ago
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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
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