3 years ago

Which of the sets of ordered pairs represents a function?

Mathematics

1 answer:

nevsk [136]3 years ago

4 0

The answer is (A).
The domain can not repeat itself.

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Let x be the shortest side

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Let x+2 be the third side

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$perimeter = s_{1} + s_{2} + s_{3} + s_{4} \\ 86 = x + (x + 1) + (x + 2) + (x + 3) \\ 86 = x + x + 1 + x + 2 + x + 3 \\ 86 = 4x + 6 \\ 4x = 80 \\ x = 20$

Shortest side is 20 cm

Longest side is x+3 so 20+3=23

<h2><u>Answer:</u> 23</h2>

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