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bonufazy [111]
3 years ago
11

Write an equation of a circle with a center at (2, - 4) and a radius of 4.

Mathematics
1 answer:
fgiga [73]3 years ago
6 0

9514 1404 393

Answer:

  (x -2)^2 +(y +4)^2 = 16

Step-by-step explanation:

The equation of a circle with center (h, k) and radius r is ...

  (x -h)^2 +(y -k)^2 = r^2

You have (h, k) = (2, -4) and r = 4, so your equation is ...

  (x -2)^2 +(y -(-4))^2 = 4^2

  (x -2)^2 +(y +4)^2 = 16

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Which represents the inverse of the function f(x) = 4x?
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3 years ago
Alicia bought a frozen lemonade for $3.71. She gave the clerk a $5 bill. How much change should she receive?
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2 years ago
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Which rules define the function whose graph is
Brrunno [24]

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Step-by-step explanation:

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8 0
3 years ago
The polygons are similar. The area of one polygon is given. Find the area of the other polygon.
Fantom [35]

Answer:

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Step-by-step explanation:

For the polygon on the left, we are given the length of one side (3 ft) and the total area (27 ft²). With this information, we can determine the length of the other side - 9 ft. I found this by dividing 27 ft² by 3 ft, giving me the final result of 9 ft.

Next, we have to find the other side of the polygon on the <em>right</em> so we can ultimately determine its area. It looks like there is a scale factor of 2 between the two polygons, since 3 × 2 = 6. We know that the bottom side of the left polygon is 9, so multiplying 9 by 2 should give us the bottom side of the polygon on the right. 9 × 2 = 18.

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