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soldier1979 [14.2K]
3 years ago
5

How do I foil (4x-4)(x-4)

Mathematics
1 answer:
Natalka [10]3 years ago
5 0

Answer:

(4x-4) (x-4)

= 4( x-1) ( x-4)

= 4 ( x^2 - 4x -x +4)

= 4x^2 - 16x -4x +16

= 4x^2 -20x +16

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Vitek1552 [10]
This should help man

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By what percent has the rhinoceros weight increased
romanna [79]

let's first off  convert those mixed fractions to improper fractions, then get their difference.

\bf \stackrel{mixed}{1\frac{1}{2}}\implies \cfrac{1\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{3}{2}}~\hfill \stackrel{mixed}{2\frac{1}{10}}\implies \cfrac{2\cdot 10+1}{10}\implies \stackrel{improper}{\cfrac{21}{10}} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \cfrac{21}{10}-\cfrac{3}{2}\implies \stackrel{\textit{using the LCD of 10}}{\cfrac{(1)21-(5)3}{10}}\implies \cfrac{21-15}{10}\implies \cfrac{6}{10}\implies \cfrac{3}{5}

now, the original amount, 3/2, if that is the 100%, what is 3/5 off of it in percentage?

\bf \begin{array}{ccll} amount&\%\\ \cline{1-2}\\ \frac{3}{2}&100\\\\ \frac{3}{5}&x \end{array}\implies \cfrac{~~\frac{3}{2}~~}{\frac{3}{5}}=\cfrac{100}{x}\implies \cfrac{3}{2}\cdot \cfrac{5}{3}=\cfrac{100}{x}\implies \cfrac{5}{2}=\cfrac{100}{x} \\\\\\ 5x=200\implies x=\cfrac{200}{5}\implies x=40

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3 years ago
In how many different ways can 4 students be seated with in a row?
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<span>4 people seated on a row may have 4! = 4x3x2x1 = 24 different ways to sit.</span>
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Step-by-step explanation:

I don't know if it's correct but You need to learn pemdas

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Step-by-step explanation:

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