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stepladder [879]
3 years ago
7

Riley solved and equation as shown in the table

Mathematics
1 answer:
Mama L [17]3 years ago
6 0
She made the mistake in step 4

She should have divided by -2 not just 2 alone
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Graph -3x + 9y = -27​
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Answer:

Step-by-step explanation:

The first step you want to do is get one variable by itself. We are going to start by isolating y by itself.

-3x + 9y = -27

9y = 3x - 27

y = 1/3x - 3

By isolating y by itself, you now have a function written in slope-intercept form. To graph this function, you can draw a point at (0,-3), then use rise/run to go up 1 unit and over 3 units to the next point (3,-2). You can then draw a line based on this information.

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3 years ago
The angles of traingle are in the ratio 3:7:8 find them in degrees as well as in radians​
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30°, 70°, and 80°.
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3k+7k+8k=180
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3 years ago
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