Please helppppppppppppppppppppp

Mathematics

2 answers:

max2010maxim [7]3 years ago

7 0

Answer:

1/3

Step-by-step explanation:

The decimal displayed is repeating, meaning that it will go on forever. If it did not have the line over the top, it would be 0.3, or 3/10. Because of the line, it goes on forever, and is equal to 1/3.

DochEvi [55]3 years ago

3 0

Answer:

The answer is 1/3 You will know what the top number is of your fraction because it is mainly the number after the decimal point. /sorry i am not making sense. Well i am getting a brain fart so the answer is going to be 1/3.. Have a great rest of the day and stay safe... :D

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taurus [48]

Answer:

$x^2 - 2x + 10$ , option B

Step-by-step explanation:

Complex numbers:

The most important relation that involves complex numbers is given by:

$i^2 = -1$

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:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

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

$\bigtriangleup = b^{2} - 4ac$

In this question:

The solutions are:

$x_1 = 1 - 3i, x_2 = 1 + 3i$

We have to find the polynomial. All option have $a = 1$ . So

$(x - (1 - 3i))(x - (1 + 3i)) = x^2 - x(1 + 3i) - x(1 - 3i) + (1 - 3i)(1 + 3i) = x^2 - x -3ix - x + 3ix + 1^2 - (3i^2) = x^2 - 2x + 1 - 9i^2 = x^2 - 2x + 1 - 9(-1) = x^2 - 2x + 10$