A combination lock uses three numbers between 1 and 43 with repetlion, and they

Question

A combination lock uses three numbers between 1 and 43 with repetlion, and they must bo selected in the correct sequence Which of the ive counting nles is used to ind that number? How many diffeent "combinations possible? Is the name of"combination lock appropriate? Inot, what other name would be better? Which of the five counting rules is used to find that number? O A. Combinations rule B. Fundamental counting nde C. Permutations rule (when all of the Rems are diferent O D. Factorial nule E. Permutaions rule (when some hems are identical to others) How many diflerent "combinations" are possible? The number of different "combinations" is (Type a whole number) Is the name of "combination lock appropriate? If not, what other name would be beter? A. Yes The name "combination lock-is appropriate O B. No The name "Tactorial lock is more appropriate C. No The name "number lock is more approprite because Yundamental counting nude lock is ankward D. No The name "permutation lock is more appropriate Cack to select your answers) Type here to search

Explanation / Answer

Combinations rule is appropriate counting rule is used

There are total 43 numbers available to select at each of 3 position. This can be done in 43C1 at each position.

Hence total number of possible combinations are 43^3 = 79507

Yes the name combination lock is appropriate

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.