3 years ago

4. If you have earned income, which of the following retirement devices must you contribute to, by law?

Mathematics

1 answer:

Svetradugi [14.3K]3 years ago

5 0

Social security. (FICA)

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adoni [48]

Answer:

Step-by-step explanation:

y=2x²-6x+3

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2 years ago

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$\sin^2\dfrac x2=\sin^2x$
$\dfrac{1-\cos x}2=1-\cos^2x$
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The first case occurs in $0\le x$ for $x=\dfrac{2\pi}3$ and $x=\dfrac{4\pi}3$ . Extending the domain to account for all real $x$ , we have this happening for $x=\dfrac{2\pi}3+2n\pi$ and $\dfrac{4\pi}3+2n\pi$ , where $n\in\mathbb Z$ .

The second case occurs in $0\le x$ when $x=0$ , and extending to all reals we have $x=2n\pi$ for $n\in\mathbb Z$ , i.e. any even multiple of $\pi$ .

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