$\bf \begin{cases}
f(x)=2x\\
g(x)=2x-1\\
h(x)=\sqrt{x}
\end{cases}\qquad 
\begin{array}{llll}
(f\circ g\circ h)(x)\\
(f[g\circ h])(x)\\
(\ f[\ g(\ h(x)\ )\ ]\ )
\end{array}\\\\
-----------------------------\\\\
g(\ h(x)\ )=2[h(x)]-1\implies 2\sqrt{x}-1
\\\\\\
f[\ g(\ h(x)\ )\ ]=2[\ g(\ h(x)\ )\ ]\implies 2(2\sqrt{x}-1)
\\\\\\
f[\ g(\ h(\quad 9\quad )\ )\ ]=2(2\sqrt{9}-1)\implies 4\sqrt{9}-1\implies 4\cdot 3-1\implies 11$

3 0

3 years ago

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Is 98% of what you learn a waste

nevsk [136]

Answer:

My opinion:

I'll say 70 percent, bc we do learn English or whatever language you're learning all along to communicate, yes a big factor in our lives, basic math helps with logic and solving problems irl but advanced math helps with a career that has to do with math. same with science and history but I believe as long as you know general knowledge you will do fine

5 0

4 years ago

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