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3 years ago

Helppppppppppppppppppppppppppppppppppppppppppppp

Mathematics

1 answer:

patriot [66]3 years ago

7 0

First what you should do for this case is to rewrite the expression carefully to find the correct answer.
You must respect the properties of the roots.
Group the terms correctly.
Answer
option 2
See attached graph.

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Which two values of X are roots of the polynomial below 4x^2-6x+1

PtichkaEL [24]

$4x^2-6x+1=0\\\\a=4,\ b=-6,\ c=1\\\\\Delta=b^2-4ac\\\\\Delta=(-6)^2-4(4)(1)=36-16=20\\\\\sqrt\Delta=\sqrt{20}=\sqrt{4\cdot5}=\sqrt4\cdot\sqrt5=2\sqrt5\\\\x_1=\dfrac{-b-\sqrt\Delta}{2a},\ x_2=\dfrac{-b+\sqrt\Delta}{2a}\\\\x_1=\dfrac{-(-6)-2\sqrt5}{2\cdot4}=\dfrac{3-\sqrt5}{4}\\\\x_2=\dfrac{-(-6)+2\sqrt5}{2\cdot4}=\dfrac{3+\sqrt5}{4}$

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Mrrafil [7]

Hey there!

Assuming that $"f" = y$

So, let's solve your function, shall we?

$y(-1) = 2 \\ \\ \\ -y= 2 \\ \\ DivideBy(-1) \\ \\ \\ \frac{-y}{1} = \frac{2}{-1} \\ \\ \\ CancelOut: \frac{-y}{1} \\ \\ \\ Keep: \frac{2}{-1} \\ \\ \\ \\ Answer: y = -2 (option D)$

Good luck on your assignment and enjoy your day!

~ $LoveYourselfFirst:)$

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3 years ago

Determine what type of study is described. Explain. Researchers wanted to determine whether there was an association between hig

victus00 [196]

Answer:

Experimental Study

Step-by-step explanation:

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These studies are usually randomized ie subjects are group by chance.

As opposed to observation studies, where the researchers only measures what was observed, seen or hear without any intervention on their parts.

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Fittoniya [83]

Answer:

b = 4

Step-by-step explanation:

5b + 4 = 24

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b = 4

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Answer:

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