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Over [174]
3 years ago
8

Write an equation of the ellipse with foci at (0,+12) and vertices at (0,+13)

Mathematics
2 answers:
Korolek [52]3 years ago
7 0

Quadratic relations and comic sections unit test part 1

10. b. x^2/25 + y^2/169 =1

nekit [7.7K]3 years ago
6 0
 To solve this problem you must apply the proccedure shown below:
 1. You have that the ellipse given as a vertical major axis (a=13), therefore, taking the ellipse with its center at the origin, you have the following equation:
 (y^2/a^2)+(x^2/b^2)=1
 2. You have the distance from the center of the ellipse to the focus:
 c=12, therefore, you can calculate the value of b, the minor radius:
 c^2=a^2-b^2
 b=√(13^3-12^2)
 b=5
 3. Therefore, the equation is:
 a^2=169
 b^2=25
 (y^2/169)+(x^2/25)=1
 The answer is: (y^2/169)+(x^2/25)=1 
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Marianna [84]
Width: x
length: x + 4
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2 years ago
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postnew [5]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
toni bought an old bike for 50$. She fixed it up and sold it for $80. What percent of the original value was toni’s sale price
ikadub [295]
For this case what you must do is the following rule of three:
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 80 ----> x
 We clear x:
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ruslelena [56]

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Answer:

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4. If point (2,1) was reflected over y-axis, its coordinates became (-2,1).

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