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3 years ago

Find the degree of the following polynomial: 7xy223 + 8y5 – 3x4 + 4

Mathematics

1 answer:

Vika [28.1K]3 years ago

8 0

Answer:

224

Step-by-step explanation:

polynomial degree:224

leading term:7x^223

leading coefficient:7

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A stock market fell 40 points each day for

Montano1993 [528]

Answer: -120

Step-by-step explanation:

-40 X 3 = -120

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2 years ago

If z varies directly with x and inversely with the cube of y, when x=8,y=2 and z=3, what is x when y=4 and z=9/32?

Degger [83]

$\bf \qquad \qquad \textit{double proportional variation}
\\\\
\begin{array}{llll}
\textit{\underline{y} varies directly with \underline{x}}\\
\textit{and inversely with \underline{z}}
\end{array}\implies y=\cfrac{kx}{z}\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\
\textit{\underline{z} varies directly with \underline{x} and inversely with the cube of \underline{y}}\qquad z=\cfrac{kx}{y^3}$

$\bf \textit{we also know that }
\begin{cases}
x=8\\
y=2\\
z=3
\end{cases}\implies 3=\cfrac{k8}{2^3}\implies 3=\cfrac{8k}{8}\implies 3=k
\\\\\\
therefore\qquad \boxed{z=\cfrac{3x}{y^3}}
\\\\\\
\textit{when y = 4 and }z=\frac{9}{32}\textit{ what is \underline{x}?}\qquad \cfrac{9}{32}=\cfrac{3x}{4^3}\implies \cfrac{9}{32}=\cfrac{3x}{64}
\\\\\\
\cfrac{9\cdot 64}{32\cdot 3}=x$

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4 years ago

Evaluate sin^-1(sin5)

Nookie1986 [14]

−π2≤sin−1x≤π2

3π2≤5≤2π

−π2≤5−2π≤0≤π2

sin(5–2π)=sin5

Thus, sin−1(sin5)=5−2π

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3 years ago

Find Q angle Who is here so smart xd?

AleksandrR [38]

Answer:

13 BRO

Step-by-step explanation:

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3 years ago

What’s the surface area of this prism?

finlep [7]

Answer:

580

Step-by-step explanation:

1/2 6x10 x2 for the two bases is 60. for the rams is 20x8 x2 cause there is two ramps. then the bottom is 10 x 20 is 200. add them all up and get 580.

6 0

3 years ago

Read 2 more answers