The price is three for $1.48 how much will one pepper cost?

Mathematics

1 answer:

mr Goodwill [35]3 years ago

8 0

Answer:

$0.4933

Step-by-step explanation:

i guess

Just divided by 3 ;)

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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2 years ago

Find the coefficient of x^5y^8 in (x+y)^13

Dafna1 [17]

recall that the exponent for the first term will be starting at 13, and descending by one on every expanded term, in the binomial theorem.

so, 13, 12, 11, 10, 9, 8, 7, 6, 5 <---- x⁵ will then be in the 9th term

now, using the "combination" formula to get the coefficient of the 9th term.

k = 8 <--- the 9th term

n = 13 <--- highest exponent

$\bf \textit{the coefficient and values of an expanded term} \\\\ (x+y)^{13} \qquad \qquad \begin{array}{llll} expansion\\ for\\ 9^{th}~term \end{array} \quad \begin{cases} \stackrel{term}{k}=0..n\\ \stackrel{exponent}{n}\\ -----\\ k=\stackrel{9~term}{8}\\ n=13 \end{cases}$

$\bf \stackrel{coefficient}{\left(\frac{n!}{k!(n-k)!}\right)} \qquad \stackrel{\stackrel{first~term}{factor}}{\left( a^{n-k} \right)} \qquad \stackrel{\stackrel{second~term}{factor}}{\left( b^k \right)} \\\\\\ \cfrac{13!}{8!(13-8)!}~~x^{13-8}~~(+y)^8\implies 1287~x^5y^8$