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In-s [12.5K]
2 years ago
12

when three-digit telephone area codes were first put in place in the united states and Canada, the first number could be any dig

it from 2 through 9, the second number could only be 0 to 1 and the third number could be any digit from 0 through 9. How many possible area codes can be created with this format?
Mathematics
1 answer:
forsale [732]2 years ago
6 0

Answer:

919

Step-by-step explanation:

vvu8igswe7nfttv bhjkopp8g

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1 year ago
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\qquad\qquad\huge\underline{{\sf Answer}}♨

Let's solve for x ~

\qquad \sf  \dashrightarrow \:12 {x}^{2}  - 36x = 0

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