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sergeinik [125]
3 years ago
5

Identify the ellipses, represented by equations, whose eccentricities are less than 0.5

Mathematics
2 answers:
jok3333 [9.3K]3 years ago
8 0

Answer:

1, 4 and 6 for plato

Step-by-step explanation:

ozzi3 years ago
3 0

Answer:

See explanation

Step-by-step explanation:

Hello, we cannot see the ellipse equations.

The eccentric of an ellipse is given by:

e =  \frac{c}{a}

Assuming the equations are:

\frac{ {x}^{2} }{25}  +  \frac{ {y}^{2} }{16}  = 1

Then a²=25 and b²=16

{c}^{2}  =  {a}^{2}  -  {b}^{2}

{c}^{2}  = 25 - 16

{c}^{2}  =  {3}^{2}

c = 3

The eccentricity is:

e =  \frac{3}{5}  = 0.6

If the ellipse has equation,

\frac{ {x}^{2} }{ {5}^{2} }  +  \frac{ {y}^{2} }{ {3}^{2} }  = 1

then the this time, we have a=5 and b=3.

This means that:

{c}^{2}  =  {a}^{2}  -  {b}^{2}

{c}^{2}  =  {5}^{2}  -  {3}^{2}

{c}^{2}  =  {4}^{2}

c = 4

c =  \frac{4}{5}  = 0.8

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Plz help me i did it but messed up some ware plz help . 5x5=4x5+9=
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