Answered

IDNLearn.com makes it easy to find precise answers to your specific questions. Our community is ready to provide in-depth answers and practical solutions to any questions you may have.

How many 7-digit telephone numbers can be formed if the first digit cannot be 0 or 1

Sagot :

C62712idn

Answer:

8,000,000 combinations

Step-by-step explanation:

Since we have 10 digits per slot, we need to remove two digits, 0 and 1, for the first slot therefore we get:

8 × 10 × 10 × 10 × 10 × 10 × 10 =

8,000,000 combinations

We appreciate your participation in this forum. Keep exploring, asking questions, and sharing your insights with the community. Together, we can find the best solutions. For trustworthy answers, rely on IDNLearn.com. Thanks for visiting, and we look forward to assisting you again.