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Annette [7]
3 years ago
15

Write this equation in standard form 9x^2-4y^2-24y-72=0

Mathematics
1 answer:
Xelga [282]3 years ago
4 0
9x^2-4y^2-24y-72=0\\
\\
9x^2-4y^2-24y=72\\
\\
9x^2-(4y^2+24y+36)=72-36\\
\\
9x^2-4(y+3)^2=36\\
\\
\frac{9x^2}{36}-\frac{4(y+3)^2}{36}=\frac{36}{36}\\
\\
\boxed{\frac{x^2}{4}-\frac{(y+3)^2}{9}=1}
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WHAT WOULD THIS BE? HOW WOULD I DO IT PLEASE HELP IM STUCK
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Answer:

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Step-by-step explanation:

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3 years ago
Hi , step by step please
Zigmanuir [339]

Answer:

Eldest: $335,500   Middle: $182,750   Youngest: $167,750

Step-by-step explanation:

Let's represent the amount of money the youngest sibling received as x.

The amount the eldest received can be represented as: 2x

The amount the middle sibling received can be represented as: x + 15,000

If we combined the amount of money that all of the siblings received, it would be $686,000. We can write this as an equation:

686,000 = 2x + (x + 15,000) + x

Now let's solve for x. First, combine like terms

686,000 = 4x + 15,000

Subtract 15000 from both sides to isolate the 4x

671,000 = 4x

Divide both sides by 4 to isolate the x

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Now we know that the amount of money the youngest received is $167,750. We can use this amount to figure out how much the other two siblings received.

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Middle: 167,750 + 15,000 = $182,750

We can check to make sure these answers are correct by adding them all together to make sure that they equal 686,000

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7 0
3 years ago
Fill in the box with the appropriate measure.<br> quick please I have only a few min left
Art [367]

Step-by-step explanation:

first box on the left

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third box on the left

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2 years ago
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ki77a [65]
I am pretty good at any math and I love a good challenge. What is your question because I'd be glad to help!!!
4 0
3 years ago
Can someone help asap!! ​
Alborosie

7/9÷4/9=7/4

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