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serious [3.7K]
4 years ago
8

Can someone please help me on 9 and 10 ty!!

Mathematics
1 answer:
vitfil [10]4 years ago
5 0

Answer:

9. slope = 7-2/7-1

= 5/6

10. slope = 8- -2/5-4

= 10/1 = 10

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Answer:

The center is at (0,0)

The vertices are at ( ( ±2 sqrt(2),0)

foci are  ( ±sqrt(5),0)

Step-by-step explanation:

3x^2 + 8y^2 = 24

Divide each side by 24

3x^2 /24 + 8y^2/24 = 24/24

x^2/8  + y^2 /3 = 1

The general equation of an ellipse is

(x-h)^2/  a^2  + (y-k)^2 / b^2  = 1

a>b   (h,k) is the center

the coordinates of the vertices are ( ±a,0)

the coordinates of the foci are  ( ±c,0), where  ^c2=a^2−b^ 2

The center is at (0,0)

a = sqrt(8) = 2sqrt(2)

The vertices are at ( ( ±2 sqrt(2),0)

c = 8 - 3 =5

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3 0
4 years ago
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Sedbober [7]
Since cube has all faces as Squares

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Note : if the length from edge to edge is asked then

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4 years ago
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3 years ago
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Llana [10]

Answer:

y = -5

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2 years ago
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sesenic [268]

Answer:

≈0.819232 or \frac{10\sqrt{149} }{149}

Step-by-step explanation:

\frac{10}{\sqrt{149}} times \frac{\sqrt{149} }{\sqrt{149} }

\frac{10\sqrt{149} }{149}

5 0
3 years ago
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