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nadya68
4 days ago
13

Concentric circles are circles with the same center but different radii. Which equations represent concentric circles along with

the circle shown in the graph? Check all that apply.
x2 + y2 = 25
(x – 8)² + (y – 9)² = 3
(x – 8)² + (y – 9)² = 14
(x – 8)² + (y + 9)² = 3
(x + 8)² + (y + 9)² = 25
(x + 9)² + (y + 8)² = 3
Mathematics
2 answers:
lawyer [9.2K]4 days ago
7 0
(x – 8)² + (y – 9)² = 3 (x – 8)² + (y – 9)² = 14 are the correct answers.
lawyer [9.2K]4 days ago
4 0
Concentric circles are defined as having the same center but varying radii. The general equation of a circle is defined as (x-a)² + (y-b)² = r², where the center is (a,b) and r denotes the radius. 1. x² + y² = 25 translates to (x-0)² + (y-0)² = 5², marking the center at (0,0) and radius as 5. 2. (x – 8)² + (y – 9)² = 3 represents (x – 8)² + (y – 9)² = (√3)², meaning the center is at (8,9) and the radius is √3. 3. (x – 8)² + (y – 9)² = 14 denotes (x – 8)² + (y – 9)² = [√14]², placing the center at (8,9) with radius √14. 4. (x – 8)² + (y + 9)² = [√3]² signifies (x – 8)² + (y + 9)² = [√3]², center (8,9) and radius √3. 5. (x + 8)² + (y + 9)² = 25, rendered as (x + 8)² + (y + 9)² = 5², shows center (-8,-9) with radius 5. 6. (x + 9)² + (y + 8)² = 3 converts to (x + 9)² + (y + 8)² = [√3]², having center (-9,-8) with radius √3. Hence, circles 2 and 3, (x – 8)² + (y – 9)² = (√3)² and (x – 8)² + (y – 9)² = [√14]², are concentric.
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Assuming a steady flow of vehicles, as noted in the scenario.

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26 days ago
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The end behavior of a function refers to how the graph behaves (upwards or downwards) as it nears positive or negative infinity within its domain. Essentially, we’re investigating the direction the graph tends towards on both sides.

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1 month ago
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: Xem xét 2 nhà đầu tư A và B với đường cầu về cổ phiếu như sau: Nhà đầu tư A: 2P = 300 – 2Q Nhà đầu tư B: P = 150 – 3Q a. Tại m
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Đáp án:

Giải thích từng bước:

5 0
15 days ago
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