Question

Please help!!!!!!!!!!!!!!!! 100pts,

Answer 1

• First four digits have 10options

Last digit have

• 10-2=8options

So Total ways

• 10⁴×8
• 10000×8
• 80000ways

Answer 2

80,000

Explanation:

To solve this, use the Fundamental Counting Principle.

Simply calculate how many options there are for each digit in the combination, then multiply them to find the total number of combinations.

• First digit: 0 - 9 → 10 options
• Second digit: 0 - 9 → 10 options
• Third digit: 0 - 9 → 10 options
• Fourth digit: 0 - 9 → 10 options
• Fifth digit: 2 - 9 → 8 options

Total number of different combinations (codes):

⇒ 10 · 10 · 10 · 10 · 8 = 80,000