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2 years ago

Factor and solves the polynomial x(to the 2nd power) + 5x + 4 = 0 x= (blank) and x= (blank)

Mathematics

1 answer:

zubka84 [21]2 years ago

3 0

Answer:

$x = -4~ \text{and}~ x = -1$

Step-by-step explanation:

$~~~~~~~x^2 +5x +4 =0\\\\\implies x^2 +4x +x +4 = 0\\\\\implies x(x+4) +(x+4) = 0\\\\\implies (x+4)(x+1) = 0\\\\\implies x = -4,~~ x = -1$

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What is the area of xyz pleae help?

Sedaia [141]

Step-by-step explanation:

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Use cylindrical coordinates. find the volume of the solid that is enclosed by the cone z = x2 + y2 and the sphere x2 + y2 + z2 =

sashaice [31]

Let $R$ be the solid. Then the volume is

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which follows from the facts that

$\begin{cases}x=r\cos\theta\\y=r\sin\theta\\z=\zeta\end{cases}\implies\mathrm dx\,\mathrm dy\,\mathrm dz=r\,\mathrm dr\,\mathrm d\theta\,\mathrm d\zeta$
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and

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3 years ago

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Leokris [45]

Combine like terms
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put back together
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3 years ago

Help on this one as well ii manged to get an answer but If you understand it or im wrong an you please explain ! thank you !!

AnnZ [28]

Almost got it!

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so x + 3 = (3y + 6)/2
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x = 3y/2 [Divided both sides by 2]
x/3 = y/2 [Divided both sides by 3]

So you wrote y/3 instead of y/2
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Step my step

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