Question

Caleb needs to create an 8-digit password using only numbets. How many different passwords are there if he wants to use 00 exactly once?​

Answer 1

Answer:7x9^6 = 3720087 and I know how your friend got it

Step-by-step explanation:

if Caleb can put 00 anywhere that means that since there are 8 digits and 00 is 2 digits that means there are 7 different spots to put 00 giving you 7*x or 7 times any value. Because the 00 takes up two spaces, that means that they're are 6 digits left. hence 7*x^6 or 7 times any value to the sixth. In a numerical password they're are nine different digits to count up "123456789". So your friend did the 7 digits to put 00 times the "123456789" to the remaining spaces power. or 7x9^6.

I hope this helped pls give brainliest.