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carmencolon119
12.02.2020 •
Mathematics
Determine the end behavior for function ƒ(x) = –x4 + 5x3 – 3.
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Ответ:
f(x)→−∞ as x→−∞ and f(x)→−∞ as x→∞
Step-by-step explanation:
Since the leading term of the polynomial (the term in a polynomial which contains the highest power of the variable) is −x4, then the degree is 4, i.e. even, and the leading coefficient is −1, i.e. negative.
This means that f(x)→−∞ as x→−∞ and f(x)→−∞ as x→∞.
Ответ:
The mean is just the multiplication of
and
so
= ![18](/tpl/images/0878/6579/de25b.png)
Variance is
so ![0.7 * 60 * 0.3 = 12.6](/tpl/images/0878/6579/51ecf.png)
So the variance is![12.6](/tpl/images/0878/6579/45bec.png)
The standard deviation is just the root of the variance so:
=
rounded to the nearest hundredth. :D