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tankabanditka [31]

3 years ago

15

Thissss isssss the rest

1 answer:

lisabon 2012 [21]3 years ago

5 0

Answer:

In a triangle, sides opposite of congruent angles are congruent.

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Elodia [21]

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SSA (SIDE, ANGLE, SIDE)

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Arlecino [84]

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3 years ago

Prove that in general (x + a)<br> 2 ≠ x2 + a2

qwelly [4]

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yes they are not equal because (x + a) = 2x + 2a

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3 years ago

Up for a Brain Game?

kotegsom [21]

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-x, x, 4x, 0.2x, (1/4)x

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2 years ago

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If L=√(x^2+y^2), dx/dt =-4, dy/dt=3, find dL/dt when x=4 and y=3

yulyashka [42]

Hello,

$L=\sqrt{x^2+y^2} \\\\\dfrac{dx}{dt}=-4\\\\\dfrac{dy}{dt}=3\\\\x=4, y=3\\\\\dfrac{\partial L} {\partial x} =\dfrac{x}{\sqrt{x^2+y^2}} \\\\\dfrac{\partial L} {\partial y} =\dfrac{y}{\sqrt{x^2+y^2}} \\\\\dfrac{dL}{dt} =\dfrac{\partial L} {\partial x}*\dfrac{dx}{dt}+\dfrac{\partial L} {\partial y}*\dfrac{dy}{dt}\\\\=-4*\frac{-4}{\sqrt{4^2+3^2}} +3*\frac{3}{\sqrt{4^2+3^2}}\\\\=\dfrac{16}{5} +\dfrac{9}{5} \\\\=5\\$

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3 years ago