You are going on a field trip in a school bus. A special detector placed on one of the bus's tires counts the number of rotation
s completed by the tire during the journey. The tire's diameter is 1 meter, and it made 8000 rotations during the trip.
How far did the bus travel?
Give your answer in terms of pi.
How far did the bus travel?
Give your answer in terms of pi.
1 answer:
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Answer:
a. 59049
b. 15120
Step-by-step explanation:
<u>a. If digits can be repeated:</u>
- There are 9 possible numbers for each digit
That is: possible 5-digit pass codes are 9×9×9×9×9==59049
<u>b. If digits cannot be repeated.</u>
There is
- 9 possibility for the first digit,
- 8 possibility for the second digit
- 7 possibility for the third digit
- 6 possibility for the fourth digit
- 5 possibility for the fifth digit
That is: possible 5-digit pass codes are 9×8×7×6×5=15120