8. How many positive integers less than 1000 a) have exactly three decimal digits? b) have an odd number of decimal digits? c) have at least one decimal digit equal to 9?

Algebra and Trigonometry (6th Edition)
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ChapterP: Prerequisites: Fundamental Concepts Of Algebra
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Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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8. How many positive integers less than 1000
a) have exactly three decimal digits?
b) have an odd number of decimal digits?
c) have at least one decimal digit equal to 9?
d) have no odd decimal digits?
e) have two consecutive decimal digits equal to 5?
f) are palindromes (that is, read the same forward and
backward)?
Transcribed Image Text:8. How many positive integers less than 1000 a) have exactly three decimal digits? b) have an odd number of decimal digits? c) have at least one decimal digit equal to 9? d) have no odd decimal digits? e) have two consecutive decimal digits equal to 5? f) are palindromes (that is, read the same forward and backward)?
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