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2 years ago

Help picture below problem 6

Mathematics

2 answers:

lys-0071 [83]2 years ago

8 0

Answer:

An octagon is a polygon with eight sides.

Step-by-step explanation:

Octa or Octo means eight. Like an octopus. They call it an octopus because it has eight limbs.

A stop-sign is an examle of an octagon.

Hope that helps!

kiruha [24]2 years ago

6 0

Answer:

i think that B..is a right answer

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Jet001 [13]

Answer:

The roots are $x = (\frac{3}{2}, -2)$ , which is given by option C.

Step-by-step explanation:

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

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$x_{2} = \frac{-b - \sqrt{\Delta}}{2*a}$

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In this question, we have that:

$2x^2 + x - 6 = 0$

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$x_{1} = \frac{-1 + \sqrt{49}}{2*2} = \frac{6}{4} = \frac{3}{2}$

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So the roots are $x = (\frac{3}{2}, -2)$ , which is given by option C.

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