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DENIUS [597]
3 years ago
13

Algebra 2 questions

Mathematics
1 answer:
GenaCL600 [577]3 years ago
3 0

Answer:

x=-15

Step-by-step explanation:

2/3+1/x=2/5-3/x

1/x+3/x=2/5-2/3

4/x=-4/15

x=-15

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postnew [5]
\bf \begin{cases}
f(x)=\cfrac{2}{x}\\\\
g(x)=\cfrac{x}{x+2}
\end{cases}\qquad g[\quad f(x)\quad ]=\cfrac{[f(x)]}{[f(x)]+2}

\bf (g\circ f)(x)\iff g[\quad f(x)\quad ]=\cfrac{\boxed{\frac{2}{x}}}{\boxed{\frac{2}{x}}+2}
\\\\\\
g[\quad f(x)\quad ]=\cfrac{\frac{2}{x}}{\frac{2x+2}{x}}\implies g[\quad f(x)\quad ]=\cfrac{2}{x}\cdot \cfrac{x}{2x+2}
\\\\\\
g[\quad f(x)\quad ]=\cfrac{2x}{2x^2+2x}\implies  g[\quad f(x)\quad ]=\cfrac{2x}{2x(x+1)}
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g[\quad f(x)\quad ]=\cfrac{1}{x+1}
5 0
3 years ago
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zubka84 [21]
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3 years ago
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8 0
3 years ago
Select rational or irrational to classify each number 0.02 2√2√1/2​
Oksi-84 [34.3K]

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square root of 1/2 is rational

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