Which polynomial was factored? x2 – 2x – 8 x2 + 2x – 8 x2 – 2x – 4 x2 + 2x – 4

Mathematics

2 answers:

yKpoI14uk [10]2 years ago

7 0

Answer:

x^2+2x-8

Step-by-step explanation:

x^2+2x-8 = (x+4)(x-2)

defon2 years ago

3 0

Answer: A. x^2 -2x -8

Step-by-step explanation:

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Two spherical pieces of cookie dough have radii of 3cm & 5cm. The pieces are combined to form one large spherical piece of d

V125BC [204]

Hello,

The sum of volumes of the two spheres is

4/3*π*a³+4/3*π*b³=4/3*π*c³

c=∛(a³+b³)=∛(3³+5³)=∛152=5.336803297...≈5.34 (cm)

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3 years ago

the time it takes to fill a water tank varies inversely with the water rate of the hose. At 8 gallons per minute, a hose can fil

Readme [11.4K]

$\bf \qquad \qquad \textit{inverse proportional variation}\\\\
\textit{\underline{y} varies inversely with \underline{x}}\qquad \qquad y=\cfrac{k}{x}\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\
\textit{time it takes to fill a tank varies inversely with the water rate}\\\\
t=\cfrac{k}{w}\quad 
\begin{cases}
t=\textit{time to fill}\\
w=\textit{water rate}
\end{cases}$

$\bf \textit{we also know that }
\begin{cases}
w=\stackrel{g/min}{8}\\
t=\stackrel{min}{45}
\end{cases}\implies 45=\cfrac{k}{8}\implies 360=k
\\\\\\
therefore\qquad \boxed{t=\cfrac{360}{w}}
\\\\\\
\textit{now if w = 15, what is \underline{t}?}\qquad t=\cfrac{360}{15}$

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3 years ago

Multiply (-3x4y3z)(-4x2y3z).

velikii [3]

Answer:

-3×4ycube z square (-4)×2y3

-12cube z square (-4)×2y3

48ycube z square×2y3

96ycube z square y cube

288y3 (yz)square

I hope you will understand these squares or cubes

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