Answer:
84 different lineups are possible
Step-by-step explanation:
The order in which the songs are chosen is not important. So we use the combinations formula to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.
In this question:
6 musics from a set of 9. So
84 different lineups are possible
Answer:
Step-by-step explanation:
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<u><em>When bases are same powers are to be added</em></u>
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Answer:
x= -1 y= -1
Step-by-step explanation:
Answer:
80
Step-by-step explanation:
The sides of a triangle always add up to 180. 80+20+?=180
Step-by-step explanation:
work is shown and pictured