MATHEMATICS HIGH SCHOOL

The dial of a combination lock has all 26 letters of the alphabet on it. A combination is formed by dialing 3 different letters in a particular order. If the owner of the lock forgets the combination, how many trials may be needed to open the lock?a)17576
b)15600
c)78

Answers

Answer 1
Answer: 3 differnent letters
once you use one, ou can't use again
slot method
26 options for 1st slot
25 options for 2nd ( 1 went to firstt slot)
24 otpoins for 3rd

mulipl together

26*25*24=15600 options

B is answer
Answer 2
Answer:

Answer:

b

Step-by-step explanation:

Related Questions

Find the equation of the circle whose center and radius are given.center ( 7, -3), radius = 7
solve this problem as a quadratic equation. The difference between two positive numbers is 5. Their product is 104 find the numbers.
in a certain 9th grade class the no. of girls is 83 less than no.of boys the total no. of student is 259. write an expression to represent the relationship between this information.
A young sumo wrestler decided to go on a diet yo go on a special high protein diet to gain weight rapidly.he started at 90 kilograms and gained weight at a constant rate.after 8 months ,he weighed 138 kilograms
Simplify the expression.(-8.6) ^00-8.61-1

the population of ages at inauguration of all us presidents who had professions in the military is 62,46, 68,64,57. why does it not make sense to construct a histogram for this data set?

Answers