Question

How many different ways can these shapes be arranged in a row?

Answer 1

\[nPr=\frac{n!}{(n-r)!}\]
\[5P5=\frac{5!}{0!}=\frac{5!}{1}\]

Now can you calculate?

Answer 2

I'm only in 7th grade and I have no idea how to do that.

Answer 3

5! means factorial 5.
Factorial 5 = 5 * 4 * 3 * 2 * 1

Answer 4

I didn't know what factorial means and now I get it! thanks :)

Answer 5

Good work!! :)