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lina2011 [118]
3 years ago
6

Choose the correct conic section to fit the equation.

Mathematics
2 answers:
Ksivusya [100]3 years ago
5 0

Answer:

Hyperbola

Step-by-step explanation:

Given is an equation in x and y as

xy = -16

We know that for ellipse both x and y will have degree 2.

For parabola one variable would be of degree 2 and other degree 1.

Circle both will have degree 2 and equal coefficients.

So this equation is not a circle, a parabola or an ellipse.

We know that rectangular hyperbola will have equation as

xy=c^2 \\xy =-c^2

Hyperbola is the right answer.

Evgen [1.6K]3 years ago
4 0

The answer is a Hyperbola

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After 12 days you have 800 lbs of plutonium left to fuel your nuclear reactor. After 30 days you have 755 lbs. Find the equation
Fantom [35]
M=(755-800) /30-12
m= -45/18 or -2.5

y-800 = -2.5(x-12)
y-800 = -2.5x + 30
y = -2.5x + 830

y = -2.5(120) + 830
y = 530 lbs
4 0
3 years ago
How many liters of an 18% alcohol solution must be added to a 10% alcohol solution to get 20L of a 15% alcohol solution
Lorico [155]

Answer:

Let x= liters of 18% solution to be added to a 10% solution.

20-x= liters of 10% solution to be mixed with 18% solution.

..

18%(x)+10%(20-x)=15%(20)

.18x+2-.1x=3

..08x=1

x=1/.08=12.5

ans:

12.5 liters of an 18% alcohol solution must be added to a 10% alcohol solution to get 20 L of a 15% acohol solution.

I hope it's helpful!

7 0
3 years ago
The number 49 has exactly three factors. Since 98 is a multiple of 49, which must be true of 98? It must have only two factors.
Mumz [18]

Answer:

Step-by-step explanation:

⇒49=7×7 =1 × 49

Factors of 49 = 1,7,49

⇒It is given that ,98 is a Multiple of 49.

98 = 49 × 2

So, apart from factors of 49, number 2, and 98 are also included in the set of factors of 98.

→Factors of 98 are =1,2,7,49,98

3 0
3 years ago
Help mee please i don’t understand
Ber [7]
The answers in order is
Bc
Dc
Sas
7 0
3 years ago
Solve system by elimination <br> -9x+7y=22<br> 9x-5y=-26
alisha [4.7K]

Answer:

The solution would be (-4, -2)

Step-by-step explanation:

To find this simply add the two equations together.

-9x+7y=22

9x-5y=-26

----------------

2y = -4

y = -2

Now we have the y value, we can solve for the x value.

9x-5y=-26

9x-5(-2)=-26

9x+10=-16

9x=-36

x = -4

3 0
3 years ago
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