Mathematics, 18.07.2019 17:00 azertyqwerty123
Combination/permutation math a cellphone/telephone keypad has keys numbered with the digits 0 to 9, inclusive. each of the keys, except the "1" (one) and "0" (zero) keys, also contains letters. how many different telephone numbers are possible using this keypad, if each "number" consists of two letters followed by five digits, where the first digit is not zero? i know that the answer is 5,760,000 but i dont know how they got this answer. explain in detail and i will give brainliest
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Combination/permutation math a cellphone/telephone keypad has keys numbered with the digits 0 to 9,...
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