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pshichka [43]
3 years ago
15

9x^2+4y^2 = 36

Mathematics
2 answers:
Vladimir [108]3 years ago
7 0

Answer:

c.(0, -√5) and (0, √5)

Step-by-step explanation:

The equation represents an ellipse centered on origin (0,0). First, the formula is rearranged to its cannonical form:

\frac{x^{2}}{4} + \frac{y^{2}}{9} = 1

The foci are located in the lines of the semimajor axes, so, the distance between the center and any of the foci is:

c = \sqrt{9 - 4}

c = \sqrt{5}

The foci are located at (0, -\sqrt{5}) and (0,\sqrt{5}). Hence, the answer is C.

Afina-wow [57]3 years ago
6 0
The answer is c
hope this would help you

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Factorise completely 3m^2-48​
Helen [10]

Answer:

3 (m^2 - 16)

Step-by-step explanation:

factoring means taking out a common multiple of all the terms in the expression

in this case, if you multiply 3 and m^2, 3 and -16, you would get 3m^2-48​

so you take the three and put it outside of the parenthesis that contains the factored terms

this leaves you with 3 (m^2 - 16)

3 0
3 years ago
7m-6; m =8<br><br> What’s the answer!??
boyakko [2]

Answer:

m = 8 Please brainliest!

Step-by-step explanation:

Simplifying

7m + -6m = 8

Combine like terms: 7m + -6m = 1m

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Solving

1m = 8

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Move all terms containing m to the left, all other terms to the right.

Divide each side by '1'.

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m = 8

3 0
2 years ago
What is the product?<br> (x2+3y+7) [yy+1)
DIA [1.3K]
2 x y2 + 2 x 3 y3 + 3y + 7 y2 + 7
6 0
3 years ago
A drive-in theater costs $20 per car, plus an additional fee of $4 per person. The cost, C, of the movie when p people are in th
ozzi

Answer:

P=\frac{C}{4} -5

Step-by-step explanation:

Step one:

given

cost  per drive= $20

additional fee per person= $4

let the number of persons be p

and the total cost be C

The total cost function is expressed as

C=20+4p

Step two:

Required:

<u><em>We want to make P subject of the cost function </em></u>

Take 20 to the other side we have

C-20=4p

divide through by 4

P=C-20/4

simplify

P=C/4-5

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8 0
3 years ago
Due very soon! Please help ASAP!
Ahat [919]

Answer:

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8=8

Step-by-step explanation:

6 0
2 years ago
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