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Veseljchak [2.6K]
2 years ago
13

(-4f + 9) - (8f + 9) = Math pls help

Mathematics
1 answer:
Salsk061 [2.6K]2 years ago
4 0

Answer:

-12f

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago
How do I Express the inequality x < 7 using interval notation.
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Answer:  (-\infty, 7)

You can write this as (-infinity, 7) if you aren't able to use the infinity symbol.

====================================================

Explanation:

Think of x < 7 as writing -\infty < x < 7

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To write -\infty < x < 7 in interval notation, we write (-\infty, 7)

The curved parenthesis tell us to exclude the endpoint.

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3 years ago
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Find an equation of the line perpendicular to y=4x+5 and that passes through the point (0,-1)
iragen [17]

Answer:

y = -1/4x - 1.

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y = 4x + 5

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