Solved

A Telephone Number Consists of a Sequence of Seven Digits

Question 92

Short Answer

A telephone number consists of a sequence of seven digits not starting with a 0 or a 1. How many phone numbers begin with either 764, 768, or 788

Related Questions

Q87: A poker hand consists of five cards

Q88: How many five-letter sequences are possible that

Q89: In how many ways can a 6-card

Q90: Evaluate <span class="ql-formula"

Q91: List the elements of all outcomes of

Q93: In an eight-cylinder engine, the even-numbered cylinders

Q94: A test requires that you answer first

Q95: Let <span class="ql-formula" data-value="\begin{aligned}N

Q96: Evaluate <span class="ql-formula" data-value="P (

Q97: The following table shows the amount