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Vesna [10]
3 years ago
13

Write and simplify an expression for the perimeter of the triangle or rectangle

Mathematics
1 answer:
patriot [66]3 years ago
5 0
Q21)Answer: 4c - 1
2c + (c - 6) + (c + 5)
= 2c + c - 6 + c + 5
= 4c - 1

Q22) Answer: 15f + 7
(6f - 3) + (5f + 14) + [4(f - 1)]
= 6f - 3 + 5f + 14 + (4f - 4)
= 6f - 3 + 5f + 14 + 4f - 4
= 15f + 7
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Answer:

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Step-by-step explanation:

The y-intercept of the line is at +4, so the only viable choice is the last choice.

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Each of the equations is shown in slope-intercept form:

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where b is the y-intercept, the y-value when x=0. The graph shows that as point (0, 4). So, the equation you're looking for is ...

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If you want to spend more brain power on the problem, you can compute the slope of the line as ...

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Now, you know for sure the equation of the line is ...

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