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WINSTONCH [101]
3 years ago
15

Good night, logging out !

Mathematics
1 answer:
musickatia [10]3 years ago
5 0

Good night :). Sleep tight!

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HELP ASAP: Find a hyperbola's equation with vertices at (-7, 0) + (7, 0) and co-vertices (0, -4) + (0, 4).
Harlamova29_29 [7]

Answer:

16x^2 - 49y^2 = 784

Step-by-step explanation:

as we know that this is the standard equation of hyperbola bcz 1 coordinate of vertices is 0.

since in vertices x coordinate is present and y coordinate is 0 so Tranverse axis of hyperbola is along x axis .

vertices in general = (a,0) and (-a,0)

vertices given = ( 7,0) and (-7 , 0)

so a=7

similarly

co vertices in general = ( 0 , b) and ( 0 , -b)

co vertices given = ( 0, 4) and (0 , -4)

so,

b= 4

now equation for x axis is:

(x2/a2) - ( y2/b2) = 1

by putting values we observe the ans is

16x^2 - 49y^2 = 784

6 0
3 years ago
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The results of a survey are shown below. In the survey, 12 students said that they would like to learn French. How many of the s
Ivenika [448]

Answer:

18

Step-by-step explanation:

24 divided by 12 is 2. 36 divided by 2 is 18.

Hope this is right.

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3 years ago
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A submarine sits at –300 meters in relation to sea level. Then it descends 115 meters. What is its new position in relation to s
avanturin [10]

Answer:

New\ Position = -415m

Step-by-step explanation:

Given

Position= -300m

Descend = 115m

Required

Determine the new position

It descends means that it moved in the downward position.

So, the new position is:

New\ Position = Position - Descend

New\ Position = -300m - 115m

New\ Position = -415m

<em>Hence, the new position f the submarin is -415m</em>

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3 years ago
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HELLLPPP
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4+4+4+6+6=24 Hours
15+15+20+20+20= 1 Hr 30 Min
24+1= 25 Hours + 30 Minutes=
Final answer: C) 25 hours and 30 minutes
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3 years ago
Write 90,523 in Word form
azamat
Ninety thousand five hundred twenty three
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