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pishuonlain [190]
2 years ago
5

The figure shown is a rhombus. A rhombus with diagonals is shown. The diagonals form 4 triangles. The measures of the angles are

x degrees, y degrees, and z degrees. All sides are congruent. Which equation is true regarding the angles formed by the diagonals and sides of the rhombus? x y = z 2x = y z z x = 2y 2x 2y = 4z.
Mathematics
1 answer:
Vaselesa [24]2 years ago
3 0

Answer:

A

Step-by-step explanation:

I just took the test and i got it correct! :)

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Anna35 [415]

 

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\displaystyle\\3x^2-11x-20=0\\\\x_{1,2}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}=\frac{11\pm\sqrt{121+4\cdot3\cdot20}}{2\cdot3}=\\\\=\frac{11\pm\sqrt{121+240}}{6}=\frac{11\pm\sqrt{361 }}{6}=\frac{11\pm19}{6}\\\\x_1=\frac{11-19}{6}=\frac{-8}{6}\\\\\boxed{\bf x_1=-\frac{4}{3}}\\\\x_2=\frac{11+19}{6}=\frac{30}{6}\\\\\boxed{\bf x_2=5}




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