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3 years ago

Can someone PLEASE help me And I will give BRAINLY!! I don’t know if it’s the 2nd or 3rd one

Mathematics

1 answer:

tatyana61 [14]3 years ago

7 0

Answer:

Step-by-step explanation:

Open dots represent everything leading up to a number, but do not include the number itself, and closed dots include the number. Therefore, it would need to be B.

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identify the graph of 9x^2-25y^2=225 for t(0 5) and write an equation of the translated or rotated graph in general form

tamaranim1 [39]

ANSWER

The required equation is:

$9 {x}^{2} - 25{y}^{2} + 250y - 85 0=0$

EXPLANATION

The given equation is

$9 {x}^{2} - 25 {y}^{2} = 225$

Dividing through by 225 we obtain;

$\frac{ {x}^{2} }{25} - \frac{ {y}^{2} }{9} = 1$

This is a hyperbola that has it's centre at the origin.

If this hyperbola is translated so that its center is now at (0,5).

Then its equation becomes:

$\frac{ {(x - 0)}^{2} }{25} - \frac{ {(y - 5)}^{2} }{9} = 1$

We multiply through by 225 to get;

$9 {x}^{2} - 25( {y - 5})^{2} = 225$

We now expand to get;

$9 {x}^{2} - 25( {y}^{2} - 10y + 25 )= 225$

$9 {x}^{2} - 25{y}^{2} + 250y - 6 25 = 225$

The equation of the hyperbola in general form is

$9 {x}^{2} - 25{y}^{2} + 250y - 85 0=0$

5 0

3 years ago

Read 2 more answers

Which one is rong <br> Scenario <br> Equation <br> Graph or<br> Table

a_sh-v [17]

I believe the equation is wrong

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3 years ago

The students at Walden Middle School are selling tins of popcorn to raise money for new uniforms. They sold 42 tins in the first

sdas [7]

Answer:

$388.50

Step-by-step explanation:

42 tins

$9.25/tin

$42*9.25=388.5$

So, they raised $388.50

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2 years ago

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Kevin decides to build a square for his play park. If the area of the room is 4x^2 + 28x + 49 square feet, what is the length of

leva [86]

We have to factor becasue
area=legnth times width
area=4x^2+28x+49
area=(2x+7)(2x+7)
area=(2x+7)^2
legnth =width

we arent' given area so we can't solve
but, , since it is a squaer room, legnth=width so √area=legnth=width

8 0

3 years ago

I don't quite understand this..

weqwewe [10]

There it is in the image. Hope it helps. You don't need the negative y- axis.

7 0

3 years ago