Please help URGENT brainiest for correct answer

Mathematics

1 answer:

gulaghasi [49]3 years ago

3 0

Answer: 59

Step-by-step explanation:

The center angles are each 90, Each triangle adds to 180 and is the same as the other three that it forms the rhombus with. If the outside angles are 31 degrees then the last angle ( ADE ) must be 59 degrees

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Which is represented by this model

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Step-by-step explanation:

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Romashka-Z-Leto [24]

Answer: 24

Step-by-step explanation:

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Two curves are orthogonal if their tangent lines are perpendicular at each point of intersection. are the given families of curv

Akimi4 [234]

Hello,

$P(x,y)=x^2+y^2-ax=0\\\\
\dfrac{\partial{P}}{\partial{x}}=2x-a\\\\
\dfrac{\partial{P}}{\partial{y}}=2y\\\\


Q(x,y)=x^2+y^2-by=0\\\\
\dfrac{\partial{Q}}{\partial{x}}=2x\\\\
\dfrac{\partial{Q}}{\partial{y}}=2y-b\\\\

\dfrac{\partial{P}}{\partial{x}}*\dfrac{\partial{Q}}{\partial{x}}+\dfrac{\partial{P}}{\partial{y}}*\dfrac{\partial{Q}}{\partial{y}}=(2x-a)*2x+2y(2y-b)\\
=4x^2+4y^2-2ax-2by\\
=2(2x^2+2y^2-ax-by)\\
=2*P(x,y)+Q(x,y))\\
=2*(0+0)=0\\\\

Answer YES
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