$_nP_r = \dfrac{n!}{(n-r)!}\quad \text{where n is the total \# of items and r is the quantity chosen} \\\\\text{In the given problem, n = 5 and r = 4}\\\\\\_5P_4=\dfrac{5!}{(5-4)!} = \dfrac{5\times 4\times 3\times 2 \times 1}{1}=120$

8 0

2 years ago

What does product rule of exponents say

LuckyWell [14K]

The rules of exponents are
$( x^{m})( x^{n})=( x^{m+n})$
$\frac{ x^{m} }{ x^{n} } = x^{m-n}$
$x^{ \frac{m}{n} } = \sqrt[n]{ x^{m} }$
$( x^{m} )( y^{m} )=(yx)^{m}$
$( x^{m})^{n}=x^{mn}$
$( \frac{x}{y})^{m}= \frac{x^{m}}{y^{m}}$
$x^{-n}= \frac{1}{x^{n}}$
these are just some basic ones

7 0

2 years ago

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Marissa went on a trip and drove her car throughout the day. The graph below shows Marissa's distance from the starting point of

n200080 [17]

Can u take a picture of the graph

6 0

2 years ago

Write an expression to represent: Four less than the quotient of a number x and 5.

grin007 [14]

X/5-4

The quotient of a number x and 5 is x/5.
Four less means you will subtract 4 from it.

7 0

2 years ago

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