Maria looks at the architectural plan of a four-walled room in which the walls meet each other at right angles. The length of on
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Formula for permutation is:
Plug in the values:
Required number of ways = ²C7
- n = 7
- r = 5
<em>Thus, </em><em>The</em><em> </em><em>players</em><em> </em><em>can</em><em> </em><em>be</em><em> </em><em>selected</em><em> </em><em>in</em><em> </em><em>21</em><em> </em><em>different</em><em> </em><em>ways</em><em>!</em><em>!</em><em>~</em>