$42] B. (-∞0.42) C. (-∞,21] C

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Question
Find the domain of the function.
A. (-∞0.42]
B. (-∞,42) U (42,00)
C. (-∞0,21]
D. (-∞,21) U (21, ∞ )
f(x) = √21-x
Transcribed Image Text:Find the domain of the function. A. (-∞0.42] B. (-∞,42) U (42,00) C. (-∞0,21] D. (-∞,21) U (21, ∞ ) f(x) = √21-x
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