Answer: C
Step-by-step explanation:
Answer:
The number of ways he can elect the president,the vice President and the secretary is 1320 ways
Step-by-step explanation:
This is a permutation question.
Any of the 12 members can be the President , when this is done, any of the remaining 11 can be the vice president ,when this is done, any of the remaining 10 can be the secretary.
The required number of ways is;
12*11*10= 1320ways
Answer:
Ok :)
Step-by-step explanation:
Radical 63 can be broken down as radical 9 and 7. Radical 9 can be also 3 and you carry the radical 7. So radical 63 is basically 3 radical 7.
21/18= 1 1/6
How I did this:
21/18 is an improper fraction, so I thought how many times does 18 go into 21. (If you want you can divide.) It goes in once. 18×1=1, so then you subtract 21-18, the answer is 3. Then you put it over the 18. 3/18 you can reduce to 1/6 (Because 3÷3=1 and 3÷18=6. Hope I helped!