jlasombra
jlasombra jlasombra
  • 02-06-2017
  • Mathematics
contestada

Find the center, vertices, and foci of the ellipse with equation 5x2 + 9y2 = 45.

Respuesta :

3mar 3mar
  • 02-06-2017

5x^2 + 9y^2 = 45


÷45

x^2/9 + y^2/5 = 1


center=(0,0)

vertices=(+a,0) and (-a,0)
             =(3,0) and (-3,0)

 a^2=b^2+c^2
c^2=9-5=4
c=2

foci = (+c,0) and (-c,0)
       = (2,0) and (-2,0)

I hope that helps!



Ver imagen 3mar
Answer Link
Аноним Аноним
  • 17-01-2019

Answer:

D

Step-by-step explanation:


Ver imagen Аноним
Answer Link

Otras preguntas

I need help with this please
Please please help me with this please
The new employee had aplomb, he required assistance
Solve the system of inequalities:2x-1 < x+35x−1 > 6−2xx−5 < 0
14. Andy has 17 coins made up of quarters and half dollars, and their total value is $7.25. How many quarters does he have?
The court system was created by _____________.
Which statement about thunderstorms is correct?A. Lightning is seen before thunder is heard.B. Thunder can occur without lightning.C. Thunder is heard before li
After graduation, you plan to work for Dynamo Corporation for 12 years and then start your own business. You expect to save and deposit $7,500 a year for the fi
Find the error with the subject-verb agreement. Select the incorrect verb and type it correctly... Modern calculators, which can compute complex sums almost ins
At the First Continental Congress, which of the following did the Congress demand of England? A. that the Intolerable Acts be repealed B. that the colonies'