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lisabon 2012 [21]
3 years ago
7

Which of the following steps would you perform to the system of equations below so that the equations have opposite y-coefficien

ts?
4x+2y=4
12x-y=26

A. Multiply both sides of the top equation by 2
B. Divide both sides of the bottom equation by 3
C. Divide both sides of the top equation by 3
D. Multiply both sides of the bottom equation by 2
Mathematics
2 answers:
denis23 [38]3 years ago
3 0
I think B not 100%shure ,you could prob go ask this on yahoo and get a bit more help ;) sorry I couldent help more
Vika [28.1K]3 years ago
3 0
The answer is D. you would multiply bottom equation by 2 so that it would be -2Y vs +2Y :)
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The volume of a spherical tank is 790.272 pie cubic feet what is the diameter of the container
pochemuha

Answer:

The diameter is 13.88 feet.

Step-by-step explanation:

1. The formula for calculate the volume of a sphere is:

V=\frac{3}{4}(r^{3}\pi)

Where r is the radius.

2. The diameter is:

D=2r

3. So, you must solve for the radius in the first equation:

r=\sqrt[3]{\frac{4V}{3\pi}} 

r=\sqrt[3]{\frac{4(790.272ft^{3} )}{3\pi}}\\r=6.94ft

4. Then, the diameter is:

D=2(6.94ft)\\D=13.88ft


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3 years ago
The solution set of the inequality 2x − y > 2 consists of all the points __ ? the line __ ?
GalinKa [24]

Answer:

  • b - below; y = 2x − 2

Step-by-step explanation:

  • 2x − y > 2
  • 2x - y + y - 2 > 2 + y - 2
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  • y < 2x - 2

Solution is the points below the line y = 2x - 2

<u>Correct option is:</u>

  • b - below; y = 2x − 2
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3 years ago
If the area of a square is 36 inches what is the length of one side?
Pavel [41]
To find the length of a square given the area, we just need to take the square root of the area given. The sqrt of 36 is 6, so each side is 6 inches. :)
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Answer:

Letter A

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Answer:

3hours and 30 minutes moving and 2 and a half hours stationary

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