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3 years ago

Indicate true or false as to weather the following equation is quadratic x(x^2+1)=0 true or false

1 answer:

5 0

$\bf x(x^2+1)=0\implies \stackrel{distributing}{x^3+x=0}\impliedby \textit{notice the }^3\textit{, is not quadratic, is \underline{cubic}}$

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PLEASE HELP!! NO LINKS!!

dlinn [17]

Answer:

42.1 cm

Step-by-step explanation:

θ = 265°

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3 years ago

Solve y=-3x² + 4.5x – 20<br> Use the Quadratic formula

statuscvo [17]

Answer:

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Step-by-step explanation:

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Step 1: Define

y = -3x² + 4.5x - 20

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Step 2: Substitute and Evaluate

$x=\frac{-4.5 \pm \sqrt{4.5^2-4(-3)(-20)} }{2(-3)}$

$x=\frac{-4.5 \pm \sqrt{20.25-240} }{-6}$

$x=\frac{-4.5 \pm \sqrt{-219.75} }{-6}$

$x=\frac{-4.5 \pm \sqrt{219.75}(\sqrt{-1} ) }{-6}$

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3 years ago

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Gnoma [55]

4Th option is correct ✔️ ✔️

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kenny6666 [7]

Answer:

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Step-by-step explanation:

you may please search it

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3 years ago