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2 years ago

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Which set of ordered pairs represents a function? {(-2, 4), (-1, 6), (-6, 3), (-6, 4)} {(5, 5), (9, 5), (-8, 0), (-7, 8)} {(-2,

6), (8, -3), (-8, 4), (8, -8)} {(-2, -1), (-1, 6), (2, 4), (-2, -9)}

1 answer:

Mademuasel [1]2 years ago

5 0

The first set. It repeated 6 on the X value

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denpristay [2]

Answer:

x = 10, y = 0

Step-by-step explanation:

x + y = 10 ---> x = 10 - y

3x + 2y = 30

3 (10 - y) + 2y = 30

30 - 3y + 2y = 30

y = 0

x + 0 = 10

x = 10

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R^2 = 4r-4<br><br> Please show steps

natita [175]

Answer:

r = 2

Step-by-step explanation:

$r^{2}$ = 4r-4

square root both sides

r = $\sqrt{}$ 4r-4

r = 2r-2

2r-r = 2

r = 2

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