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 2 years ago
How many 7 digit phone numbers can be formed if the first digit cannot be 0 or 1?
 2 years ago
How many 7 digit phone numbers can be formed if the first digit cannot be 0 or 1?

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imranmeah91
 2 years ago
Best ResponseYou've already chosen the best response.4well, let's write out each posibility for each digit and then multiply

GOODMAN
 2 years ago
Best ResponseYou've already chosen the best response.0I was told to use the Counting Principle

imranmeah91
 2 years ago
Best ResponseYou've already chosen the best response.4first one can't be 0 or 1 , so we got only 8 possibilities

imranmeah91
 2 years ago
Best ResponseYou've already chosen the best response.4the other digits have 10 possibilties so we multiplies them all

GOODMAN
 2 years ago
Best ResponseYou've already chosen the best response.0Okay, so we delete 2 outta the 10 possibliity.

imranmeah91
 2 years ago
Best ResponseYou've already chosen the best response.4like Ryan did above

lgbasallote
 2 years ago
Best ResponseYou've already chosen the best response.2you're not planning on stalking someone are you @GOODMAN /:) he

GOODMAN
 2 years ago
Best ResponseYou've already chosen the best response.0Wait, how do we know that the others have 10 possibilities, doesnt it apply to the others as well?

imranmeah91
 2 years ago
Best ResponseYou've already chosen the best response.4well, only first digit can't be 0 or 1 ; other digits can be any number from 0 to 9

GOODMAN
 2 years ago
Best ResponseYou've already chosen the best response.0I need help with one more if you dont mind..

GOODMAN
 2 years ago
Best ResponseYou've already chosen the best response.0A photographer is taking a picture o f a bride and groom together with 6 attendants. How many ways can he arrange the 8 people in a line if hte bride and groom stand in the middle?

imranmeah91
 2 years ago
Best ResponseYou've already chosen the best response.4little help with photographer problem

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.0ok ____, ___, ____, B G ____, ____, _____

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.0that looks right to me

agreene
 2 years ago
Best ResponseYou've already chosen the best response.0what all of a sudden this has to be in base 10?

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.0this might surprise you and this might amaze you

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.0but i am going to knock out joe frazier !

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.0btw it is \[6!=6\times 5\times 4\times 3\times 2=720\]

GOODMAN
 2 years ago
Best ResponseYou've already chosen the best response.0Yea, i knw what factorials are, but whats is Joe Frazier got to do with this, lol.

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.0Float like a butterfly, sting like a bee

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.0His hands can't hit what his eyes can't see.

lgbasallote
 2 years ago
Best ResponseYou've already chosen the best response.2he beat muhammad ali....
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