3 years ago

Y/xz=c. Combined variation or joint variation?

Mathematics

1 answer:

kotykmax [81]3 years ago

7 0

Answer:

Joint variation

Step-by-step explanation:

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Find ????⋅ ???? if |????|=3 , |????|=9 , and the angle between ???? and ???? is π2 radians.

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Answer:

$a{\cdot}b=0$

Step-by-step explanation:

It is given that,

Magnitude of a A, $|A|=3$

magnitude of B, $|B|=9$

The angle betwern a and b is $\dfrac{\pi}{2}\ rad=90^{\circ}$

Dot product,

$a{\cdot} b=|a||b|\ \cos\theta\\\\a{\cdot} b=3\times 9\times \ \cos(90)\\\\a{\cdot} b=0$

So, a.b is equal to 0.

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3 years ago

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4 years ago

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An appropriate measure for ∠CDE would be

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<h3>How to check for the appropriate measure of CDE.</h3>

we have the following angles as parallel BC¯, DE¯, and FG¯ also CD¯, EF¯, and GH¯.

The angles that we have to check in order to measure would be

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Read more on angles and triangles here:

brainly.com/question/25215131

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2 years ago

What is 23/100 as a percent? Include the % symbol

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23%.
Please vote my answer brainliest! Thanks.

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3 years ago

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3 years ago