A keypad at the entrance of a building has 10 buttons labeled 0 through 9. What is the probability of a person correctly guessing a 9-digit entry code if they know that no digits repeat?
Answer:
the probability of a person correctly guessing a 9-digit entry code if they know that no digits repeat is 0.1
Step-by-step explanation:
We know that probability= number of required outcomes /number of all possible outcome.
From the given information;
the number of required outcome is guessing a 9-digit = 1 outcome
the number of all possible outcome = ¹⁰C₉ since there are 10 numbers and 9 number are to be selected.
Since there are only 9-digit that opens the lock;
the probability of a person correctly guessing a 9-digit entry code is
P = 0.1
Answer:
9 inches
Step-by-step explanation:
you have to be at least 48 inches so the shortest person that can ride it is 48 and she is 39 so you minus the 39 from 48 and you will get the inches she needs to grow
Answer:
53.7
Step-by-step explanation:
So first move the decimal in 2.3 by one to the left, making it 23. Now what you do to one thing you do to the other, now 123.51 becomes 1235.1. Now you have 1235.1 / 23. 23 goes into 1235; 53 times, leaving you with 16.1. Now we take 16.1 / 23. When you do that you get .7. Therefore your answer is 53.7
Hopefully this helped!
If it doubles in every 4 months, then in 1 year it will double by 12/4 = 3 times.
So, the expression would be: n³
n = number of rabbit at starting point = 8
So, after 1 year, it would be = 8³ = 512
So, your final answer is 512
Hope this helps!
Answer:
5 degrees Fahrenheit
Step-by-step explanation:
-6 + 11 = 5
