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sammy [17]
3 years ago
15

Is y=2x-8 and 2x-y=8 a dependent independent or inconsistent

Mathematics
2 answers:
kolezko [41]3 years ago
7 0

Answer:

dependent

Step-by-step explanation:

y=2x-8 and 2x-y=8

First equation is already solve for y

LEts solve the second equation for y

2x-y=8

Subtract 2x on both sides

-y=-2x+8

Divide the whole equation by -1

y=2x-8

After solving for y, both equation are same

When both the system of equation are same then  it has infinite solutions.

They are said to be dependent.

kolbaska11 [484]3 years ago
4 0
Note that 2x-y=8 can be solved for y:  y=2x-8.  This is identical to the first equation.  The graph of one is exactly the same as the graph of the other.  Thus, the two equations are dependent.
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Answer:

option (a) It will be closer to 30 than to 20

Step-by-step explanation:

Data provided in the question:

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Now,

The pooled variance is calculated using the formula,

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on substituting the given respective values, we get

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Therefore,

The correct answer is option (a) It will be closer to 30 than to 20

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