PLSSS HELP IF YOU TURLY KNOW THISS

Mathematics

2 answers:

andrew11 [14]2 years ago

7 0

It’s 3.000
Heres a lil rhyme that helped me with rounding
“If it’s 5 or more, up the score. If it’s 4 or less let it rest.”
So since 8 is higher than 5, you want to just go to the number after 2.

garik1379 [7]2 years ago

4 0

Answer:

2.815

Step-by-step explanation:

The thousandth number is the third number in the provided integer, you round down because the ten-thousandth value is 1, and you will only round up if the number is 5 or higher, otherwise, you round down.

Hope this helps!

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Read 2 more answers

How to show these 2 problems are inverses

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$\bf \begin{cases}
f(x)=\sqrt[3]{7x-2}\\\\
g(x)=\cfrac{x^3+2}{7}
\end{cases}\\\\
-----------------------------\\\\
now
\\\\
f[\ g(x)\ ]\implies f\left[ \frac{x^3+2}{7} \right]\implies \sqrt[3]{7\left[ \frac{x^3+2}{7} \right]-2}\implies \sqrt[3]{x^3+2-2}
\\\\\\
\sqrt[3]{x^3}\implies x\\\\
-----------------------------\\\\
or
\\\\
g[\ f(x)\ ]\implies g\left[\sqrt[3]{7x-2}\right]\implies \cfrac{\left[\sqrt[3]{7x-2}\right]^3+2}{7}
\\\\\\
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thus f[ g(x) ] = x indeed, or g[ f(x) ] =x, thus they're indeed inverse of each other

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