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Fiesta28 [93]
3 years ago
5

Please helppppppppppppppppppppppppppo

Mathematics
1 answer:
Delvig [45]3 years ago
3 0

Answer:

The correct answer is choice D.

Step-by-step explanation:

Since the parabola opens sideways, that means the function will feature y^2 and not x^2, so you can immediately rule out options B and C. Because the graph also opens right, that means the coefficient of y^2 is positive. Using all of this information, you'll find that the correct answer is D: x = \frac{1}{12} y^2.

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Solve the system using elimination.<br> 2x + 18y = -9<br> 4x + 18y = -27
Elan Coil [88]

First, let's cancel out the x by multiplying 2x + 18y = -9 by -2.

-2 ( 2x + 18y = -9) = -4x -36y = 18

Then, we combine the two equations.

-4x + 4x = 0

18y - 36y = -18y

-27 + 18 = -9

Our new equation is -18y = -9.

Now, divide both sides by -18.

-18y / -18 = y

-9/ -18 = 1/2

y = 1/2

We can plug in a value for y since y = 1/2 now.

Let's use 2x + 18y = -9

Plug in y.

2x + 18(1/2) = -9

2x + 9 = -9

Then, subtract 9 from both sides.

2x = -18

Divide by 2.

2x/2 = x

-18/2 = -9

x = -9

Lastly, we can plug in both x and y values to see it works.

2(-9) + 18(1/2) = -9

-18 + 9 = -9

Therefore, the values of x and y does work.

x = -9

y = 1/2

4 0
3 years ago
Plz Help!!
DIA [1.3K]
I think the answer is 3/8 pounds. You multiply the 3/4 pounds by 1/2 because the recipie has been cut in half. Hope this helps!
3 0
3 years ago
Which is not equal to 30?
ch4aika [34]

Answer:

(2*60/30)*(24+6)

Step-by-step explanation:

(2*60/30)*(24+6)

(120/30)*(26)

4*26

104

4 0
3 years ago
Read 2 more answers
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zimovet [89]
40,000,000 m since its in standard form
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Which is the answer???
Nana76 [90]
I think it’s B
Hope this helped
6 0
3 years ago
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