3 years ago

Which of the following could represent the unit side length of right triangle ?

Mathematics

2 answers:

storchak [24]3 years ago

4 0

Answer:

8 , 12,20 I think good luck

yan [13]3 years ago

3 0

Answer:

Your Answer would be 5,12,13

Step-by-step explanation:

Use your Pythagorean Theorem for each individual question.

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The roots of x 2 - 2x - 2 = 0 are 1±√3 1±√12 no real roots

sertanlavr [38]

Answer:

1±√5

Step-by-step explanation:

$\bf x^2-2x-2=0\Rightarrow x=\displaystyle\frac{-(-2)\pm\sqrt{(-2)^2-4*2*(-2)}}{2}\Rightarrow\\\\\Rightarrow x=\displaystyle\frac{2\pm\sqrt{4+16}}{2}=\displaystyle\frac{2\pm\sqrt{20}}{2}=\displaystyle\frac{2\pm2\sqrt{5}}{2}\Rightarrow\\\\\Rightarrow \boxed{x=1\pm\sqrt{5}}$