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Rudiy27
3 years ago
5

Write an equation representing the direct variation.

Mathematics
1 answer:
zalisa [80]3 years ago
3 0

Answer:

y = -2.5x

Step-by-step explanation:

The constant of variation = y/ x = 5/-2 = -2.5

Also -7.5 / 3 = -2.5

-10 /4 = -2.5 and so on

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9+14x or 9+x(14) or 9+x*14

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If x =root 7+root5 and y=root7-root5 find xy​
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Step-by-step explanation:

x=√7+√5, y=√7-√5

therefore, xy = (√7+√5)(√7-√5) = 7-5 = 2.

Hope this helps you.

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2 years ago
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2. Graph each inequality on a number line:<br><br> 5x + 15 &lt; 0
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Answer:

x < -3

Step-by-step explanation:

1. To put this inequality on a number line, we first must solve it.

Step 1: Subtract 15 from both sides.

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Step 2: Divide both sides by 5.

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2. Now that we know x < -3, let's graph it!

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