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jasenka [17]
3 years ago
15

Find three solutions to each equation then graph the solution set -2x+y=1

Mathematics
1 answer:
yulyashka [42]3 years ago
4 0
<u>First Solution</u>
        -2x + y = 1
-2x + 2x + y = 1 + 2x
                 y = 1 + 2x

<u>Second Solution</u>
     -2x + y = 1
-2x + y - y = 1 - y
           <u>-2x</u> = <u>1 - y</u>
            -2       -2
              x = -0.5 + 0.5y
0.5 + x - x = -0.5 + 0.5 - x + 0.5y
           0.5 = -x + 0.5y
 -0.5y - 0.5 = -x + 0.5y - 0.5y - 0.5
   2 · (-0.5y) = 2(-x - 0.5)
                y = -2x - 1

<u>Third Solution</u>
             -2x + y = 1
        -2x + y - 1 = 1 - 1
        -2x + y - 1 = 0
-2x + 2x + y - 1 = 2x
                 y - 1 = 2x
           y - 1 + 1 = 2x + 1
                      y = 2x + 1
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stiv31 [10]

Answer:

It is 40 degrees.

Step-by-step explanation:

You can start off by understanding this is not a right angle (exactly 90 degrees, think of a corner of a room) or and obtuse angle (more than 90 degrees, bigger than a right angle). With that information we know that it is an acute angle (less than 90 degrees, smaller than a right angle). With that we have 40 and 50 degrees left. When you compare the angle with the 40 degrees one, it is the same size. The angle 1 is a reflection of the triangle with the 40 degrees angle. Hope this helps :)

5 0
3 years ago
Y = -2x +7<br><br><br> y = 3/4x +3
bearhunter [10]
Making the two equations equal to each other
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3 years ago
What is the equation of the line of best fit for the following data ? Round the slope and y-intercept of the line to three decim
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Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
–9x + 9y = 9<br> y = –7<br><br> (<br> , <br> )
Y_Kistochka [10]

Answer:

x=-8

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Step-by-step explanation:

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6 0
2 years ago
Michelle Smith bought 30 shares of James Company stock at $34 per share. The company paid annual dividends of $0.42 per share. W
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Answer:

The right option is B) 12.60

Step-by-step explanation:

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5 0
3 years ago
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