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Ede4ka [16]
3 years ago
10

1. The ordered pair (-1, -1) is a solution of the system -4x + 2y = 2 and x + y = -2.

Mathematics
1 answer:
Nastasia [14]3 years ago
5 0
1: (-1,-1) is (x, y) to see if it is a solution, you would just plug in x and y and see if the equation is true.
-4 (-1) + 2(-1) = 2
4 + -2 = 2
2 = 2 CORRECT
So... plug in x and y in the second equation to Make sure it works for that one too.
-1 + -1 = -2
-2 = -2 CORRECT
So, yes. (-1,-1) is a solution to both equations.
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Distance run = Number of laps × Distance on each lap.

Step 2; We convert 2\frac{2}{3} from a mixed fraction into an improper fraction. To do this, we multiply the whole number with the denominator of the fraction and add with it the numerator of the same fraction whereas the denominator remains unchanged. To convert the fraction 2\frac{2}{3} = ((2 × 3) + 2) / 3 = \frac{8}{3}.

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3 years ago
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Step-by-step explanation:


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<span>Sum of Interior Angles = (Number of Sides -2) • 180 degrees
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Source:
http://www.1728.org/polygon.htm

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