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Zina [86]
3 years ago
14

Simplify this 13.) 13y² + 9y + 4y² - 31y

Mathematics
1 answer:
erastova [34]3 years ago
3 0

Answer: 17y^2-22y

Step-by-step explanation:

13y^2+9y+4y^2-31y

\mathrm{Group\:like\:terms}

=13y^2+4y^2+9y-31y

\mathrm{Add\:similar\:elements:}\:13y^2+4y^2=17y^2

=17y^2+9y-31y

\mathrm{Add\:similar\:elements:}\:9y-31y=-22y

=17y^2-22y

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Answer:

2) Yes, each x-coordinate is only used once.

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Step-by-step explanation:

A relation is a function if there is no more than one y-value assigned to an x.

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(1,25)

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So basically because all of the x-coordinates are different, this is a function.

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One ordered pair that I see in the table is (3,60). There are 3 others you can choose and I named them above.

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4 years ago
Does anyone know the answers???
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Answer:

16:3

17:4

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Step-by-step explanation:

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