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AnnZ [28]
3 years ago
13

X-2y=18 2x+y=6 parallel perpendicular or neither

Mathematics
1 answer:
sergey [27]3 years ago
4 0
<h3>Therefore they are perpendicular.</h3>

Step-by-step explanation:

A equation of line is

y =mx +c

Here the slope of the line is m.

Given equations are

x - 2y = 18

⇔-2y = -x +18

\Leftrightarrow y =\frac{1}{2} x -9............(1)

and 2x + y = 6

⇔y = -2x +6 ............(2)

Therefore the slope of equation (1) is(m_1)= \frac{1}{2}

Therefore the slope of equation (2) is(m_2)= -2

If two lines are perpendicular, when we multiply their slope we get -1.

therefore,

m_1. m_2 =\frac{1}{2}. (-2) = -1

Therefore they are perpendicular.

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If John has pairs of red, orange, yellow, blue and green socks, how many can he wear them in over 5 days, repetition is allowed
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Answer:

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Step-by-step explanation:

John has pairs of red, orange, yellow, blue and green socks.

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3rd Day:

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4th Day:

On the fourth day John has 5×5×5×5 ways to choose from.

5th Day:

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3 years ago
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