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3 years ago

Helpzzzzzzz plzzz meeeeeeeeee

Mathematics

1 answer:

Travka [436]3 years ago

4 0

Answer:

yes

Step-by-step explanation:

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An equation of an ellipse is given. y2 = 1 − 3x2 (a) Find the vertices, foci, and eccentricity of the ellipse. vertex (x, y) = (

oksian1 [2.3K]

Answer:

Step-by-step explanation:

Given

$y^2=1-3x^2$

$3x^2+y^2=1$

$\frac{x^2}{(\frac{1}{\sqrt{3}})^2}+\frac{y^2}{1}=1$

therefore it is a vertical ellipse

thus a=1

$b=\frac{1}{\sqrt{3}}$

eccentricity of Ellipse

$e^2=1-\frac{b^2}{a^2}$

$e^2=1-\frac{1}{(\sqrt{3})^2}$

$e^2=1-\frac{1}{3}$

$e^2=\frac{2}{3}$

$e=\sqrt{\frac{2}{3}}$

Focii are $(0,ae)$ and $(0,-ae)$

$ae=1\times \sqrt{\frac{2}{3}}$

thus focii are $(0,\sqrt{\frac{2}{3}})$ & $(0,-\sqrt{\frac{2}{3}})$

(b) Length of major axis $=2a=2\times 1$

length of minor axis $=2b=2\times \sqrt{\frac{2}{3}}=2\cdot \sqrt{\frac{2}{3}}$

8 0

3 years ago

Help i’ll give brainliest

IceJOKER [234]

Answer:

Step-by-step explanation:

Y intercept = y value of point where the line passes the y axis

The line passes the y axis at (0,5) and the y value of that point is 5

Therefore y intercept = 5

3 0

3 years ago

Read 2 more answers

Question 6 of 10

Maksim231197 [3]

Answer:

(2.5 , 3.5)

Step-by-step explanation:

We can use the midpoint formula . Here the points are , (2,2) and (3,5) .

• Using Midpoint Formula :-

⇒ M = { (x1 + x2)/2 , (y1 + y2)/2 }

⇒ M = ( 2+3/2 , 5+2/2 )

⇒ M = ( 5/2 , 7/2 )

⇒ M = ( 2.5 , 3.5 )

<h3>Hence the midpoint is (2.5 , 3.5)</h3>

6 0

3 years ago

Which of the following is the reciprocal of: x2 - 2x - 8 A. (x + 2)(x - 4) B. 1 (x + 2) C. 1 (x + 2)(x - 4) D. 1 (x - 8)

ivanzaharov [21]

X^2 - 2x - 8 = (x + 2)(x - 4)
reciprocal of x^2 - 2x - 8 = 1 / [(x + 2)(x - 4)]

answer is C. 1 / [ (x + 2)(x - 4) ]

8 0

3 years ago

I need help asapppppppppppppp

RUDIKE [14]

It is the 3rd answer

6 0

3 years ago