Answered

Engage with knowledgeable experts and get accurate answers on IDNLearn.com. Get step-by-step guidance for all your technical questions from our dedicated community members.

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. Thank you for choosing IDNLearn.com for your queries. We’re here to provide accurate answers, so visit us again soon.