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Elodia [21]
4 years ago
15

Solve the system of equations

Mathematics
2 answers:
Aleonysh [2.5K]4 years ago
7 0

Answer is B. Just plug them in and it works! :)


topjm [15]4 years ago
5 0
The answer is B, X=2, Y=-1
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Complete the equation of the line through (-10,-7) and (-5, -9).<br>Use exact numbers,​
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Answer:

y=\frac{-5}{2}*x + 18

Step-by-step explanation:

A line in 2-dimensional space has the following general equation:

y=m*x+b

Where m is the slope of the line, and b just a number

the slope can be obtaine using th following formula:

m=\frac{x_{2} - x_{1} }{y_{2} - y_{1}}

The point 2 is the one with the smallest value for x, that is (-10,-7) and the Point 1 is any other that belongs to the line, in this case, (-5,-9)

m=\frac{-5 - (-10) }{-9 - (-7)}

Resulting that \frac{-5}{2}

To find the other term we can use any other point, I prefer us the first one so...

We have the following equation:

-7=\frac{-5}{2}*(-10)+b

Resulting that b=18

I just have to eval the point (-10,-7) in the equation stated at the beginning  knowin that m was calculated previously.

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3 years ago
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What is the difference in length between a 1 1/4 inch button and a 3/8 inch button
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A supplier has delivered 9 pallets of material to the hardware store. The delivery needs to be inventoried in 1.5 hours. How man
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