2 years ago

Is this employee correct? please help and explain your thinking.

Mathematics

1 answer:

e-lub [12.9K]2 years ago

7 0

Answer: yes it is

Step-by-step explanation:

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Verify that the roots of 5x²- 6x -2 = 0 are <img src="https://tex.z-dn.net/?f=%5Cfrac%7B3%20%2B%20%5Csqrt%7B19%7D%20%7D%7B5%7D%2

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Proof below.

Step-by-step explanation:

Quadratic Formula

$x=\dfrac{-b \pm \sqrt{b^2-4ac} }{2a}\quad\textsf{when }\:ax^2+bx+c=0$

Given quadratic equation:

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Define the variables:

a = 5
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Substitute the defined variables into the quadratic formula and solve for x:

$\implies x=\dfrac{-(-6) \pm \sqrt{(-6)^2-4(5)(-2)}}{2(5)}$

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Therefore, the exact solutions to the given quadratic equation are:

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Answer:

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Step-by-step explanation:

So lets use

ΔY/ΔX

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$\frac{-4}{-1}$

Therefore, the slope is 4

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2 years ago

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