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Thepotemich [5.8K]
3 years ago
8

I need a little help! Can someone check my work? It's a written response with linear systems.

Mathematics
1 answer:
andreyandreev [35.5K]3 years ago
5 0

Answer:

I'd say you need to be more specific.

Step-by-step explanation:

"Different" doesn't tell you much.

Consider the equations ...

  • y = 2x + 1
  • 4x - 2y = -2

These equations are "different", but they are <em>dependent</em>.

_____

I'd mentally (or actually) put the equations in the same form and compare the coefficients of x and y. If they have different ratios, the system is independent and consistent.

If they have the same ratio, the system will not have a single solution. Whether there is no solution or an infinite number of solutions depends on the constant, which I would examine next.

The system above can be put in the form

  • 2x -y = -1
  • 4x -2y = -2

In both cases, the ratio of the x coefficient to the y coefficient is 2/-1 = 4/-2 = -2. This means the lines are at least parallel, if not identical. The numbers in the second equation are all 2 times the numbers in the first equation, so the equations are <em>dependent</em>, and there are an infinite number of solutions. (Both describe the same line.)

If the second equation were 4x -2y = 1, then the two equations would be describing parallel lines, so they would be called <em>inconsistent</em>.

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Answer:

Missing term = 6x

Step-by-step explanation:

We got:

=> 4x by multiplying +4 and x (x * 4 = 4x)

=> 12 by multiplying +4 and +3 (4 * 3 = 12)

=> 2x² by multiplying 2x and x (2x * x = 2x²)

Similarly we will get the "missing term" by multiplying 2x and +3

=> <u>Missing term = 6x, (2x * 3 = 6x)</u>

Hope this helps!

7 0
3 years ago
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Ierofanga [76]
The answer is 12.
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3 years ago
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Please give an explanation!!!
lisabon 2012 [21]

Answer:

  • B) 5

Step-by-step explanation:

The area is the sum of three sections: rectangle and two same triangles

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shepuryov [24]

Answer:

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Step-by-step explanation:

Let ∠B = x

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x = 30

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First you would have to either make everything pounds or everything grams. If you chance everything into grams it would be about 680, so the 1.5 pound box of raisens would be more. 
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