Step 1:In designing a security system for its accounts, a bank asks each customer to choose a five-digit number, the digits can't be repeated and must be nonzeroHow many choices can a customer make?(Give your answer as a whole number.)eBookHintStep 2:A suitcase with a liquid-crystal display allows one to unlock it with a specific combination of three capital letters that are not necessarily different.How many choices would a thief have to go through to be sure that all the possibilities had been tried?(Give your answer as a whole number.)Hint

Question
Asked Oct 15, 2019
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Step 1:
In designing a security system for its accounts, a bank asks each customer to choose a five-digit number, the digits can't be repeated and must be nonzero
How many choices can a customer make?
(Give your answer as a whole number.)
eBook
Hint
Step 2:
A suitcase with a liquid-crystal display allows one to unlock it with a specific combination of three capital letters that are not necessarily different.
How many choices would a thief have to go through to be sure that all the possibilities had been tried?
(Give your answer as a whole number.)
Hint
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Step 1: In designing a security system for its accounts, a bank asks each customer to choose a five-digit number, the digits can't be repeated and must be nonzero How many choices can a customer make? (Give your answer as a whole number.) eBook Hint Step 2: A suitcase with a liquid-crystal display allows one to unlock it with a specific combination of three capital letters that are not necessarily different. How many choices would a thief have to go through to be sure that all the possibilities had been tried? (Give your answer as a whole number.) Hint

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Expert Answer

Step 1

1. The first digit can be filled in 9 ways because 0 is not possible as first digit as it will make it a four digit number. The second digit can be filled in 9 ways because 0 can take place as second digit. The th...

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Total required choices 9x9x8x 7x 6 =27216

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